Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 - > Trouble Shooting/Problems/Service

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #85  
Old 11-19-2013, 02:37 PM
GCLimited's Avatar
Member
My Jeep: 2014 3.6L WK2
 
Join Date: Apr 2013
Location: Mass
Posts: 815
Thanks: 0
Thanked 32 Times in 25 Posts
Rep Power: 3337
GCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond repute
Garage
Re: Outside Temperature Sensor Problem

Quote:
Originally Posted by redrockv8 View Post

I have to click my rear hatch button 4 times to get it to open. It's a small thing I've gotten used to no big deal to me
And I believe it wasn't a "big" issue to anyone else either...just fodder for some here to use as a dig.

One would think Chrysler would have caught that typo in the Owners Manual...

__________________

__________________
2014 Granite GC Overland 4x4 3.6L / Mud Flaps / Pedal Set / Lighted Door Sills / Slush Mats & Cargo Mat / H11 Phillips Fog Light Bulbs / Skid Plates (Front & Middle Only) / Tinted Front Door Windows (35%) / Airaid CAI / Build Date: 12/13 / 8.4AN v14.25.05
Reply With Quote
  #86  
Old 11-19-2013, 09:00 PM
BobsWK2's Avatar
Premium Member
 
Join Date: Aug 2010
Posts: 1,519
Thanks: 3
Thanked 23 Times in 21 Posts
Rep Power: 49506
BobsWK2 has a reputation beyond reputeBobsWK2 has a reputation beyond reputeBobsWK2 has a reputation beyond reputeBobsWK2 has a reputation beyond reputeBobsWK2 has a reputation beyond reputeBobsWK2 has a reputation beyond reputeBobsWK2 has a reputation beyond reputeBobsWK2 has a reputation beyond reputeBobsWK2 has a reputation beyond reputeBobsWK2 has a reputation beyond reputeBobsWK2 has a reputation beyond repute
Re: Outside Temperature Sensor Problem

Quote:
Originally Posted by redrockv8 View Post
I have to click my rear hatch button 4 times to get it to open. It's a small thing I've gotten used to no big deal to me
That's the thing. WHY should you have to get used to it. If it doesn't operate as designed, it's faulty and the problem should be addressed quickly. Not stalled off for more than 7 months and counting. Granted it's not the highest priority compared to other more pressing problems, but they should employ more problem solvers that can address these problems and come up with a cure in a faster timeframe. By stalling it off, they are only going to keep adding new problems to the immense list they already have and will never address them all.
__________________

__________________
2014 Summit 4X4, V8
Reply With Quote
  #87  
Old 11-19-2013, 09:11 PM
Premium Member
 
Join Date: Sep 2013
Posts: 448
Thanks: 0
Thanked 45 Times in 36 Posts
Rep Power: 4981
Peter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond repute
Re: Outside Temperature Sensor Problem

Quote:
Originally Posted by BobsWK2 View Post
That's the thing. WHY should you have to get used to it. If it doesn't operate as designed, it's faulty and the problem should be addressed quickly. Not stalled off for more than 7 months and counting. Granted it's not the highest priority compared to other more pressing problems, but they should employ more problem solvers that can address these problems and come up with a cure in a faster timeframe. By stalling it off, they are only going to keep adding new problems to the immense list they already have and will never address them all.
Wrong. I can't TELL you in how many ways this idea of adding more "problem solvers" will speed things up is wrong. This is ESPECIALLY true in software. This lesson has been hard learned by your better technology and software companies--adding more hands into the pot (depending on the size of the project/module in question) actually, above a certain point, slows things down and creates MORE problems. If 1 person can screw in a lightbulb in 10 seconds, 10 people can't make that happen in 1 second. They'd get in each other's way. Software project staffing (and much engineering work in general) works in the same way. There's a "critical mass" of engineers, below which you have problems, and above which you actually have WORSE problems.

You're thinking they can just say "hey, several people are complaining about the liftgate function. Let's just fix that." Okay...well, in our code base we are fixing several other things right now (that all need to be tested and worked out) so we don't want to work on that base--it's considered unstable until the new changes are fixed. So, let's just use the old code base, branch that off and only fix that one thing. Sure...fine. Devote QA time to just that one fix, get it out the door. But...that diverts some resource off of the main release. Oh and wait, that diverts QA time too. Ah...we'll add another set of developers and QA people! Two sets! That will work!

Uh...but it won't. Because in the model you're proposing, now I need a new set of developers and a new set of QA people for each fix. And, each of those fixes need to be integrated together, even though they are a separate release. Want to see the bugs that creep in when you try to do that? It's pretty horrendous...and amusing in ways when you know it's coming.

Look...when it comes to software, set release schedules with a given set of problems/features addressed in each is a proven method. You limit the number of changes on each release--too many, and you're asking for more problems. Adding more people or "problem solvers" to this doesn't help at all.
__________________
Reply With Quote
  #88  
Old 11-20-2013, 12:35 PM
GCLimited's Avatar
Member
My Jeep: 2014 3.6L WK2
 
Join Date: Apr 2013
Location: Mass
Posts: 815
Thanks: 0
Thanked 32 Times in 25 Posts
Rep Power: 3337
GCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond repute
Garage
Re: Outside Temperature Sensor Problem

Quote:
Originally Posted by Peter_K View Post

Wrong. I can't TELL you in how many ways this idea of adding more "problem solvers" will speed things up is wrong. This is ESPECIALLY true in software. This lesson has been hard learned by your better technology and software companies--adding more hands into the pot (depending on the size of the project/module in question) actually, above a certain point, slows things down and creates MORE problems. If 1 person can screw in a lightbulb in 10 seconds, 10 people can't make that happen in 1 second. They'd get in each other's way. Software project staffing (and much engineering work in general) works in the same way. There's a "critical mass" of engineers, below which you have problems, and above which you actually have WORSE problems.

You're thinking they can just say "hey, several people are complaining about the liftgate function. Let's just fix that." Okay...well, in our code base we are fixing several other things right now (that all need to be tested and worked out) so we don't want to work on that base--it's considered unstable until the new changes are fixed. So, let's just use the old code base, branch that off and only fix that one thing. Sure...fine. Devote QA time to just that one fix, get it out the door. But...that diverts some resource off of the main release. Oh and wait, that diverts QA time too. Ah...we'll add another set of developers and QA people! Two sets! That will work!

Uh...but it won't. Because in the model you're proposing, now I need a new set of developers and a new set of QA people for each fix. And, each of those fixes need to be integrated together, even though they are a separate release. Want to see the bugs that creep in when you try to do that? It's pretty horrendous...and amusing in ways when you know it's coming.

Look...when it comes to software, set release schedules with a given set of problems/features addressed in each is a proven method. You limit the number of changes on each release--too many, and you're asking for more problems. Adding more people or "problem solvers" to this doesn't help at all.
You sure do list a lot of excuses for Chrysler NOT to fix this small issue, and NONE as to how and why this issue made it through as many people as it did at the company.



If you ask me, it's more proof that Chrysler/Jeep's quality control is for shit.
__________________
2014 Granite GC Overland 4x4 3.6L / Mud Flaps / Pedal Set / Lighted Door Sills / Slush Mats & Cargo Mat / H11 Phillips Fog Light Bulbs / Skid Plates (Front & Middle Only) / Tinted Front Door Windows (35%) / Airaid CAI / Build Date: 12/13 / 8.4AN v14.25.05
Reply With Quote
  #89  
Old 11-20-2013, 01:32 PM
Premium Member
 
Join Date: Sep 2013
Posts: 448
Thanks: 0
Thanked 45 Times in 36 Posts
Rep Power: 4981
Peter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond repute
Quote:
Originally Posted by GCLimited View Post
You sure do list a lot of excuses for Chrysler NOT to fix this small issue, and NONE as to how and why this issue made it through as many people as it did at the company. If you ask me, it's more proof that Chrysler/Jeep's quality control is for shit.
No...I'm giving reasons why, once the problem occurred, it hasn't been instantly fixed. I'm not giving reasons or excuses for it to NOT be fixed. Very different.

How did you get your Jeep home without noticing your issues? Does your quality control suck? No? You didn't have enough time? Oh...okay.

I've seen you make comments about the fact that this was released before it was ready. But what is ready? Perfect? There isn't a piece of software out there of any complexity that is perfect. Sure, it gets better...but the longer you wait, the more expensive the product becomes. Why does a Microsoft release products that have bugs? Time to market. It can break you to delay. And it's all a juggling act between how many customers you annoy or lose vs how many you never get because you don't have anything for them.

Ever wonder why mil-spec equipment takes so long and is so expensive? Sure...some is politics and BS, but a lot of it is that if it is deemed mission-critical it is tested as nauseum before being used. Down to the component level. In many cases each component used is actually individually run at 100% testing.

Guess what? Stupid, niggling issues still get through there too. Fewer generally, and I'm sure if there were a large enough market for $250,000 Grand Cherokees, Chrysler would be happy to utilize such quality control. But...there isn't. The average consumer wants their product with complex features now (quickly), they want it affordable within the intended market segment, and they want it perfect. As the old tried and true mechanism applies, you can choose any two of those.

Sorry, but I'm not going to completely condemn Chrysler. I think there are some things that need correction but I'm not going to believe that I can magically and from the outset get all three of those qualities. Believing in that is simply not accepting the realities of mass production at these levels of complexity and affordability. Especially this early in the game.
__________________
Reply With Quote
  #90  
Old 11-20-2013, 01:46 PM
Premium Member
 
Join Date: Sep 2013
Posts: 448
Thanks: 0
Thanked 45 Times in 36 Posts
Rep Power: 4981
Peter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond repute
Oh...and if you can't believe that the outside temperature issue got past QA, then you don't really understand what the variables are. It isn't that they are reading just random crap and displaying it...it has to do with when it's updated. Why is this? Because there's a complaint factor on the OTHER side of this as well. Updating immediately, especially on a vehicle that's been driven recently will also show an incorrect temp because of a hot-soak condition.

So...solve the conditions so that you always display an accurate outside temperature. Tell me how you'd do it reasonably. I'll be impressed if you do.
__________________
Reply With Quote
  #91  
Old 11-21-2013, 08:30 AM
GCLimited's Avatar
Member
My Jeep: 2014 3.6L WK2
 
Join Date: Apr 2013
Location: Mass
Posts: 815
Thanks: 0
Thanked 32 Times in 25 Posts
Rep Power: 3337
GCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond repute
Garage
Re: Outside Temperature Sensor Problem

Quote:
Originally Posted by Peter_K View Post

How did you get your Jeep home without noticing your issues? Does your quality control suck? No? You didn't have enough time? Oh...okay.
My CEL for air bags came on as I was driving my new 2014 GC off the lot...so I turned right around and went back to the dealership...mmm, OK?



Looks like in addition to the miss from quality control at the factory, the dealership "missed" this as well.
__________________
2014 Granite GC Overland 4x4 3.6L / Mud Flaps / Pedal Set / Lighted Door Sills / Slush Mats & Cargo Mat / H11 Phillips Fog Light Bulbs / Skid Plates (Front & Middle Only) / Tinted Front Door Windows (35%) / Airaid CAI / Build Date: 12/13 / 8.4AN v14.25.05
Reply With Quote
  #92  
Old 11-21-2013, 08:41 AM
GCLimited's Avatar
Member
My Jeep: 2014 3.6L WK2
 
Join Date: Apr 2013
Location: Mass
Posts: 815
Thanks: 0
Thanked 32 Times in 25 Posts
Rep Power: 3337
GCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond repute
Garage
Re: Outside Temperature Sensor Problem

Quote:
Originally Posted by Peter_K View Post

So...solve the conditions so that you always display an accurate outside temperature. Tell me how you'd do it reasonably. I'll be impressed if you do.
I'll tell you how I'd solve this temperature display issue...I'd set it up to function LIKE EVERY OTHER CAR MANUFACTURER HAS THEIRS SET UP.

Never had a problem with all the other cars I've owned that had this feature. Yes there was heat soak when sitting in traffic on a hot day, but as soon as you started moving the temp display quickly became accurate again. No big deal.

There's been a couple times these past cold mornings (below 37 degrees) where my heated seats & steering wheel did not turn on automatically because the temp display was stuck on the temperature when I rolled into my driveway the night before (above 37 degrees). To me this is a bigger deal than heat soak in traffic.

I'll take the occasional temperature heak soak in summer traffic jams anyday from a "realtime" temp system over this stupid delay Chrysler has implemented. Didn't the idiots who programmed it this way know it would effect remote starts in the morning? Was there even any testing of the temp system? If there was it would have been caught.

__________________
2014 Granite GC Overland 4x4 3.6L / Mud Flaps / Pedal Set / Lighted Door Sills / Slush Mats & Cargo Mat / H11 Phillips Fog Light Bulbs / Skid Plates (Front & Middle Only) / Tinted Front Door Windows (35%) / Airaid CAI / Build Date: 12/13 / 8.4AN v14.25.05
Reply With Quote
  #93  
Old 11-21-2013, 09:34 AM
Premium Member
 
Join Date: Sep 2013
Posts: 448
Thanks: 0
Thanked 45 Times in 36 Posts
Rep Power: 4981
Peter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond repute
Re: Outside Temperature Sensor Problem

Quote:
Originally Posted by GCLimited View Post
I'll tell you how I'd solve this temperature display issue...I'd set it up to function LIKE EVERY OTHER CAR MANUFACTURER HAS THEIRS SET UP.
Actually my friend, other manufacturers who do remote start with auto HVAC often do something similar to what Chrysler is doing. It's actually the auto HVAC that requires that you don't do real-time updates under certain circumstances. I've seen this exact same complaint on other vehicles.

Quote:
Never had a problem with all the other cars I've owned that had this feature. Yes there was heat soak when sitting in traffic on a hot day, but as soon as you started moving the temp display quickly became accurate again. No big deal.
That had what feature? Temperature display? Sure...that's easy...by itself. And as long as that temperature isn't controlling anything else, using simply a real-time display is fine. Heh, you wouldn't believe the number of people who complain every bit as vehemently about real-time displays that react to hot-soak. YOU might be okay with it...but that doesn't mean a lot of others are. Anyway...

Heat soak isn't just on a "hot day." Go get your vehicle nice and hot driving around on a colder day (say..20-30 degrees true outside). Then...go ahead and stop. Go into work, or something for 3-4 hours (say, before lunch). Come out and tell me what the temperature reads then on a vehicle that reads in real time under those circumstances.

I can tell you if you don't want to do the experiment. In most cases it will read 20-40 degrees warmer--even after 3 hours. This will vary depending on conditions, but that would be a good average.

Huh. Well, if I'm counting on my remote start to re-warm the car before I take off for lunch I'm SOL with your real-time updates. And the inside will be stone cold at 3 hours even if the engine area isn't.

Quote:
There's been a couple times these past cold mornings (below 37 degrees) where my heated seats & steering wheel did not turn on automatically because the temp display was stuck on the temperature when I rolled into my driveway the night before (above 37 degrees). To me this is a bigger deal than heat soak in traffic.
Except...the engineers weren't worried about what you saw for hot soak in traffic. That's the least they were worried about.

Quote:
I'll take the occasional temperature heak soak in summer traffic jams anyday from a "realtime" temp system over this stupid delay Chrysler has implemented. Didn't the idiots who programmed it this way know it would effect remote starts in the morning? Was there even any testing of the temp system? If there was it would have been caught
Geez...I'm glad you're not doing the software here. Here's the deal...you're thinking simplistically and about this specific scenario. You're thinking "geez...I can handle the hot soak issue...that's no big deal." Well, doing the actual software requires thinking this through this a little bit more.

Now as I alluded to in the scenario above...why would you create the following conditions:

1) The ambient temperature updates in real-time if the vehicle has been OFF for more than X hours
2) The ambient temperature holds the last key-off temperature if the vehicle has been off less time than this, and updates after being driven for a short period of time

Other factors are involved including coolant temp and so forth, but that's the basic idea. Why would you do this? Well...let's look at this in depth and little past your very simplistic view.

It's because these "idiots" thought about much more than you did here and WERE in fact thinking about the remote start HVAC issues. For starters, if they updated it in real-time under all circumstances, then they'd have people like you calling them idiots because the remote HVAC didn't work right when they remote-started their vehicle after sitting for 3-4 hours (the engine can take a LEAST that long to cool to ambient, if not longer). The engine heat at that point in many cases would throw the temperature off even if the cabin is totally cold by then. That scenario would be EXTREMELY frequent. Likely as frequent than the one that is occurring if not more.

See, here's the situation: You can't come up with an algorithm here that's going to work 100% of the time for 100% of the users given the constraints required currently.

So, let's continue this thought experiment. What's your next solution? Your "just do it in real time" one has it's own problems, so what do you suggest? Your solution would have had the same number (or a greater number) of issues, so we can call that a QA failure too. Next...

(Oh, and just FYI...the solution CAN be tweaked to be better here...there are a couple of options. But...the engineers weren't "idiots" for going with this one to start. The other options are more complex and as such more prone to error in other ways).
__________________
Reply With Quote
  #94  
Old 11-21-2013, 10:50 AM
GCLimited's Avatar
Member
My Jeep: 2014 3.6L WK2
 
Join Date: Apr 2013
Location: Mass
Posts: 815
Thanks: 0
Thanked 32 Times in 25 Posts
Rep Power: 3337
GCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond repute
Garage
Re: Outside Temperature Sensor Problem

Quote:
Originally Posted by Peter_K View Post

Actually my friend, other manufacturers who do remote start with auto HVAC often do something similar to what Chrysler is doing. It's actually the auto HVAC that requires that you don't do real-time updates under certain circumstances. I've seen this exact same complaint on other vehicles.
Really? Because I have not heard any complaints so far myself. What I DO know is my parents 2013 Ford Escape doesn't have this issue with the overly delayed outside temperature reading...and it has remote start.

Quote:
I can tell you if you don't want to do the experiment. In most cases it will read 20-40 degrees warmer--even after 3 hours. This will vary depending on conditions, but that would be a good average.
Wrong. My last car was a 2012 Subaru STI, and it's outside temperature display NEVER varied by that much sitting with a hot engine...10 to 15 degrees tops...and it self corrected in a matter of seconds once you got moving. What's the highest temp reading ever in the U.S.? One would think to limit the temp parameters to that extreme...and in kind it would limited the affects of heat soak on the temp display.

Quote:
Huh. Well, if I'm counting on my remote start to re-warm the car before I take off for lunch I'm SOL with your real-time updates. And the inside will be stone cold at 3 hours even if the engine area isn't.
If your engine has heat soaked the temp sensor, it means your engine is still warm...and it's not going to take 3 hours to warm the interior. It might though if you had some stupid delay updating the temp reading.



Quote:
So, let's continue this thought experiment. What's your next solution? Your "just do it in real time" one has it's own problems, so what do you suggest? Your solution would have had the same number (or a greater number) of issues, so we can call that a QA failure too. Next...
Well how about this one Einstein...move the temp sensor to a different location...somewhere under the vehicle so it's out of the sun and away from the hot engine or exhaust system. This way one could use the simplier "realtime" system for measuring temperature. Air flows under the car too, right?

...but what do I know...I'm not an engineer...

__________________
2014 Granite GC Overland 4x4 3.6L / Mud Flaps / Pedal Set / Lighted Door Sills / Slush Mats & Cargo Mat / H11 Phillips Fog Light Bulbs / Skid Plates (Front & Middle Only) / Tinted Front Door Windows (35%) / Airaid CAI / Build Date: 12/13 / 8.4AN v14.25.05
Reply With Quote
  #95  
Old 11-21-2013, 11:26 AM
Premium Member
 
Join Date: Sep 2013
Posts: 448
Thanks: 0
Thanked 45 Times in 36 Posts
Rep Power: 4981
Peter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond reputePeter_K has a reputation beyond repute
Quote:
Originally Posted by GCLimited View Post
Really? Because I have not heard any complaints so far myself. What I DO know is my parents 2013 Ford Escape doesn't have this issue with the overly delayed outside temperature reading...and it has remote start.
Glad to hear it for your parents. I, however, have a much larger sample size than you. I'm an engineer in the vehicle telematics industry--I see this kind of complaint quite a bit (or ones related to it) across a number of manufacturers.

Quote:
Wrong. My last car was a 2012 Subaru STI, and it's outside temperature display NEVER varied by that much sitting with a hot engine...10 to 15 degrees tops...and it self corrected in a matter of seconds once you got moving. What's the highest or lowest temp reading ever in the U.S.? One would think to limit the temp parameters to those two extremes...and in kind it would limited the affects of heat soak on the temp display.
They are limited. And, while the engine is running and you've been moving you can apply a rationality logic which doesn't allow the temp to increase too much over a given period of time. That solves the hot soak issue...but doesn't directly relate to the other problem as when you have the vehicle off you can't be collecting temperature data at a rate that would be needed for this kind of rationality. You're confusing simple fixes for a different problem with the one being discussed.

Your own GC's hot soak running temp (in traffic) would vary much more (as would your Subaru) if the rationality logic I mentioned were not in place. I'm speaking of the raw data, (not the user-presented data) from the sensor, which I've seen plenty of, and it DOES vary as much as I said. Sometimes more in fact, depending on conditions.


Quote:
If your engine has heat soaked the temp sensor, it means your engine is still warm...and it's not going to take 3 hours to warm the interior...
True. However that's not really the issue. Plus, the heat dome that remains around the engine (especially in a no-wind situation) is significant, even if the coolant temp is insufficient to have adequate heating yet for the interior.

Plus, when people remote start and get into their vehicles they will complain that the HVAC heating wasn't on and their steering wheel and seat wasn't warm. It doesn't matter that that could turn the heat on and have it get warm faster...they will complain that it should be on already (and I'm sure you would be one of them). Your logic doesn't work here--otherwise we could say that using remote start in general would result in faster heating because the car was running before you got there. Your complaint was that because of the delayed temp indication the other goodies weren't coming on. The same thing would happen and be complained about.

Next...

Quote:
Well how about this one Einstein...move the temp sensor to a different location...somewhere under the vehicle so it's out of the sun and away from the hot engine or exhaust system. This way one could use the simplier "realtime" system for measuring temperature. Air flows under the car too, right? ...but what do I know...I'm not an engineer...
So okay...let's put it under the car. Hmm. You are aware that many things under there are getting hot right? Not just the engine...exhaust, transmission, brakes, differentials, wheels. Now, warmer air rises...so you've created a nice blanket for the sensor now. The car body is above it, holding all that heat in. Asphalt is a nice retainer of heat too from the sun and other sources, so you'll also get that radiative addition to the heat from self generated sources. Again, all under a nice blanket. Where under there are you going to put it where it won't be affected by trapped heat from all these sources?

See, you mentioned that air flows under there as well. Ah...but the original problem was what do you do about:

1) Warm air cocoons created by heat soak after shutdown when air isn't moving

2) Heat soak of the device case itself after a shutdown when air isn't moving.

Other suggestions?
__________________
Reply With Quote
  #96  
Old 11-21-2013, 11:45 AM
GCLimited's Avatar
Member
My Jeep: 2014 3.6L WK2
 
Join Date: Apr 2013
Location: Mass
Posts: 815
Thanks: 0
Thanked 32 Times in 25 Posts
Rep Power: 3337
GCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond reputeGCLimited has a reputation beyond repute
Garage
Re: Outside Temperature Sensor Problem

Seems Peter you have an excuss for everything...



What is all boils down to is the delayed outside temperature reading in the 2014 GC is an issue...and as proof Chrysler has a fix supposedly coming down the pike.

And the issue was not caught by the software engineers, the testing group, nor the quality group.

Plain & simple...fail.
__________________

__________________
2014 Granite GC Overland 4x4 3.6L / Mud Flaps / Pedal Set / Lighted Door Sills / Slush Mats & Cargo Mat / H11 Phillips Fog Light Bulbs / Skid Plates (Front & Middle Only) / Tinted Front Door Windows (35%) / Airaid CAI / Build Date: 12/13 / 8.4AN v14.25.05
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Battery temperature sensor stingray66 Grand Cherokee - WJ 4 05-13-2012 09:52 PM
unusual tpms sensor problem help! tyler05wk Troubleshooting/Problems 4 01-01-2012 06:44 PM
jeep commander temperature sensor filo8818 2005+ Jeep Commander XK 3 05-08-2011 06:59 PM
Digital temperature control swap for rotary temperature control? Juan Audio, Video, Navigation & Electronic Modifications 3 04-05-2011 02:24 PM
Knock Sensor Problem... amw5 Grand Cherokee - WK 4 08-24-2010 12:30 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 04:23 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community