Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK > Troubleshooting/Problems

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 10-04-2013, 11:06 AM
Member
My Jeep: 2005 5.7L WK
 
Join Date: Oct 2013
Location: Massachusetts
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 367
cherokee517 is on a distinguished road
Angry Losing throttle

This is sort of second hand account of what's going on now. I haven't driven this p.o.s. Jeep in months. Too unreliable.
I have an 05 5.7L hemi V8 and I can't believe I have actually said the words "I hate this Jeep".
Its latest issue is that you can be driving along and it decides it doesn't want to go as fast as it should be anymore. Suddenly it just drives veeerrrryyy slllooowwww and will eventually stall.
The most recent attempt to fix it was replacing main computer (and pretty much everything else electronically). I think the ECM has also been replaced.
If helpful I will get a hold of all that has gone wrong with it & what all has been repaired/replaced. But it's pretty safe to say I have pretty much rebuild it electronically and mechanically.
A while back it used to just stop running all together or would act as if it was in neutral. This was a fun little thing it like to do on the hwy. That hasn't happened in more than a yr. Sorry I forget what the diagnosis & fix was for that.
I need to get this resolved asap. Winter is coming and I need to sell it so I can go back to a WJ. This is my 3rd Jeep (previous ones were WJs & I loved them). This piece of crap is the biggest thorn in my side. I cannot afford this headache another day.
__________________

__________________
Reply With Quote
  #2  
Old 10-04-2013, 11:33 AM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,917
Thanks: 9
Thanked 92 Times in 87 Posts
Rep Power: 525870
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: Losing throttle

What do you mean exactly with it starts driving slow? Is it maybe that the engine already stalled and for that reason the jeep starts slowing down?
Did you do the parts replacements yourself, or did you bring it to a mechanic?
Is there any fault code set when doing the key dance, this kind of info would help to find out what can be wrong?
A stalling engine could be something very simple as a crank position sensor, fuel supply to more serious things.
__________________

__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
KYB Gas-a-Just shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #3  
Old 10-04-2013, 12:12 PM
Member
My Jeep: 2005 5.7L WK
 
Join Date: Oct 2013
Location: Massachusetts
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 367
cherokee517 is on a distinguished road
Re: Losing throttle

Thank you so much for your reply. I am so desperate.
Mechanics got too expensive and as soon as something else fixed another thing went wrong or original problem/code would come back. My husband has been doing the work himself with the help of other firefighters who are also mechanics. (I honestly think it's too advanced for him.)
I will have to ask him if it's already stalled before slowing down.
We have used diagnostic things/code readers. Most of the time they aren't able to read anything.
I'm pretty sure I know what the "key dance" is, but if you wouldn't mind telling me how to do it I'd appreciate it.
I want to say the crank position sensor has been among the million replacements. And I did mention it possibly being a fuel thing. No word yet on that verdict.
Honestly I think the whole sensors & computer system is what makes the new vehicles suck so much. I think we get a ton of false diagnostics because it'll say 1 sensor is the problem when it's actually another that is kind of relevant. And there was actually nothing wrong with the one that had been replaced (this would happen when mechanics/dealerships did the work).
Just by memory it has a new accelorator, starter, battery (none of which were nec), new PCM and crankshaft sensor I think...
As soon as I get the whole list of symptoms, repairs, codes, messages, etc. I will post.

Thank you again. I'm losing my mind. We are so broke. And a lot of it because of this thing. I have to get it resolved so I can get the most money from it for my next WJ. That'll last me the rest of my life. No more newer Jeeps for me.
__________________
Reply With Quote
  #4  
Old 10-04-2013, 04:23 PM
Member
My Jeep: 2005 5.7L WK
 
Join Date: Jul 2010
Location: Kingston, Ontario
Posts: 802
Thanks: 0
Thanked 15 Times in 14 Posts
Rep Power: 276905
dr.lee.baugh has a reputation beyond reputedr.lee.baugh has a reputation beyond reputedr.lee.baugh has a reputation beyond reputedr.lee.baugh has a reputation beyond reputedr.lee.baugh has a reputation beyond reputedr.lee.baugh has a reputation beyond reputedr.lee.baugh has a reputation beyond reputedr.lee.baugh has a reputation beyond reputedr.lee.baugh has a reputation beyond reputedr.lee.baugh has a reputation beyond reputedr.lee.baugh has a reputation beyond repute
Re: Losing throttle

Quote:
Originally Posted by cherokee517 View Post
This is sort of second hand account of what's going on now. I haven't driven this p.o.s. Jeep in months. Too unreliable.
I have an 05 5.7L hemi V8 and I can't believe I have actually said the words "I hate this Jeep".
Its latest issue is that you can be driving along and it decides it doesn't want to go as fast as it should be anymore. Suddenly it just drives veeerrrryyy slllooowwww and will eventually stall.
The most recent attempt to fix it was replacing main computer (and pretty much everything else electronically). I think the ECM has also been replaced.
If helpful I will get a hold of all that has gone wrong with it & what all has been repaired/replaced. But it's pretty safe to say I have pretty much rebuild it electronically and mechanically.
A while back it used to just stop running all together or would act as if it was in neutral. This was a fun little thing it like to do on the hwy. That hasn't happened in more than a yr. Sorry I forget what the diagnosis & fix was for that.
I need to get this resolved asap. Winter is coming and I need to sell it so I can go back to a WJ. This is my 3rd Jeep (previous ones were WJs & I loved them). This piece of crap is the biggest thorn in my side. I cannot afford this headache another day.
What sort of mileage? Have any non-electrical parts been replaced? From what I have seen/heard mainboard failures on the Jeep are pretty rare. I would much more likely start with checking the simple parts that are known to wear out than entire boards.



Some things that could cause your concern:

EGR Valve
Wires (2005 have coil packs AND wires)
Crank and Cam Position sensors (I know you said one of these may have been replaced)
Transmission fluid level and quality of the filters (return and main)
Throttle body (inspect and clean/replace if necessary)

These are all cheap and easy fixes that many perform as routine maintenance at certain mileage, and may not throw a DTC to point the repair shop in the right direction (though many would).

Could be a whole lot of other things that aren't as common (and maybe some common ones that I've forgot...if so, I am sure others will chime in).
__________________
Reply With Quote
  #5  
Old 10-04-2013, 07:12 PM
Frango100's Avatar
Premium Member

My Jeep: 2004 4.7L WJ
 
Join Date: Dec 2009
Location: Brazil
Posts: 4,917
Thanks: 9
Thanked 92 Times in 87 Posts
Rep Power: 525870
Frango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond reputeFrango100 has a reputation beyond repute
Re: Losing throttle

The key dance works like this: ignition switch off/run three times and leave in run at the third time. The odometer will show DONE, or a fault code(s).
Without fault code it becomes difficult to diagnose. You said that they used a scanner to read the faults, but didnīt read anything. there where no codes, or the scanner couldnīt make a connection with the PCM?
Was the fuel pump pressure checked?
__________________
Frank

JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
KYB Gas-a-Just shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.

VW Beetle 2.0 TSI 2013
My new toy
Reply With Quote
  #6  
Old 10-04-2013, 08:04 PM
ChrisWk's Avatar
Senior Member
My Jeep: 2005 5.7L WK
 
Join Date: Oct 2009
Location: Atlanta, Ga
Posts: 1,068
Thanks: 0
Thanked 5 Times in 5 Posts
Rep Power: 375461
ChrisWk has a reputation beyond reputeChrisWk has a reputation beyond reputeChrisWk has a reputation beyond reputeChrisWk has a reputation beyond reputeChrisWk has a reputation beyond reputeChrisWk has a reputation beyond reputeChrisWk has a reputation beyond reputeChrisWk has a reputation beyond reputeChrisWk has a reputation beyond reputeChrisWk has a reputation beyond reputeChrisWk has a reputation beyond repute
Garage
Re: Losing throttle

Could also be the battery it will make electric stuff go crazy.
__________________
HEMI Dark Khaki Pearl SRT8 Full Body Kit, Roof Rails,SRT8 Engine Strut Bar, Lund Rear Spoiler, MYGIG INSTALLED with LOCKPICK, Kenwood Sub, SRT8 Intake,Taylor Spark Plug Wires,G2 Silver Painted Brake Calipers, Billet Tech Catch Can, Addco Sway Bar Rear, WK Eibach Lowering Springs, SRT8 Bilstein Shocks, Xenon Volt HID Lows 6k,Chrome SRT Reps 255/45/20
Reply With Quote
  #7  
Old 10-05-2013, 10:01 AM
Member
My Jeep: 2005 5.7L WK
 
Join Date: Oct 2013
Location: Massachusetts
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 367
cherokee517 is on a distinguished road
Re: Losing throttle

Quote:
Originally Posted by ChrisWk View Post
Could also be the battery it will make electric stuff go crazy.
New battery. Thanks for the input tho.
If this battery loses voltage tho I may disconnect the dvd player. I've since learned that Jeep's installed dvd isn't quite right for it and drains its battery. Not sure if they remedied it later in other models.
__________________

__________________
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
losing power MonsterZJ Grand Cherokee - ZJ 7 04-26-2013 09:31 PM
losing coolant jdubgrand Troubleshooting/Problems 2 07-04-2012 12:30 AM
Backlash on throttle on/throttle off and cold start shivering ZF1FR Export & Diesel Powered Jeep Models 8 10-21-2011 07:58 PM
06 Hemi Using/Losing Oil 06HemiLtd Grand Cherokee - WK 16 09-06-2010 10:12 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 10:46 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