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  #469  
Old 04-10-2015, 09:18 PM
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Re: 2014 Grand Cherokee Problems - Australia

I wonder how many problems have been caused by overfilling the sump by numbskull mechanics??
Was talking to guy yesterday who was complaining of a new oil leak, and a clogged DPF, on his Navara, both just after a service. He then just happened to mention that the sump was very significantly overfilled at the same time....
Coincidence???? Me thinks not!

Overfilling a sump can cause a lot of drama on any engine, from blown seals to excessive oil in the crankcase vent system. Of course, some engines will be more susceptible than others. (My old TD42 Patrol didn't mind an extra litre or so at all.)
Combine that with the strange dipstick phenomenon on this VM engine where you will often get incorrect readings if you don't do it "just right", and it makes me wonder. My suggestion: check you're not overfilled after any service.

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  #470  
Old 04-11-2015, 02:50 AM
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Re: 2014 Grand Cherokee Problems - Australia

Still venting on Jeep. Picked the vehicle up this morning only sales staff on duty. Drove the vehicle out of the yard with normal air-conditioning settings L22c R23c ambient 22c all looking good with temp reducing initially then about 500mtrs on noticed the vent temp start to rise to over 30c (have a guage in the vent outlet) and the cabin was getting very hot. Returned to dealership, left vehicle running found a sales guy to show him what was happening. Vent temp had reduced slightly by this time but was still up around 30c. He played with it and agreed that it was not normal in the way it was behaving after moving the temp settings and so on. What happened during the service visit? Must have been Look but don't See! The sales guy was helpful but then proceeded to tell me with 7 years experience selling Jeeps this was the first problem he had seen. I know for a fact that the dealer principle there had an SRT and like other GC'S had the updates for the HVAC for hot cabins. Sales Bullshit. Anyway back it goes AGAIN.
14-104 carried out all seemed OK with just the normal minor clatter on acceleration.
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  #471  
Old 04-11-2015, 07:07 AM
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Re: 2014 Grand Cherokee Problems - Australia

I think there is an inherent problem with Jeep air con, my 13 model is about 80% ok but not perfect by any means and I don't believe that software updates will fix the problem. One of my previous vehicles, a made in Japan Toyota had climate control that was perfect in every way and it worked without any so called software fixes. The temp in mine runs a little to hot as it needs to be set at 19* to be comfortable and the auto fan speed is far to high, I have just resigned to the fact that maybe this is as good as it will get. Other than that the GC is running well with no problems to report at the next service @ 30k.




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  #472  
Old 04-11-2015, 07:35 AM
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Re: 2014 Grand Cherokee Problems - Australia

I thought I had issues in the early days but after the updates in dec haven't notice any problems since.
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  #473  
Old 04-11-2015, 08:12 AM
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Re: 2014 Grand Cherokee Problems - Australia

No issues with our ever.
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  #474  
Old 04-11-2015, 09:08 PM
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Re: 2014 Grand Cherokee Problems - Australia

Thanks Guy's for your feedback. I think they where all hoping that the PCM replacement was going to fix it, seeing it thru up the unusual high cabin temperature code message. From most people I talk to about their 13/14 GC the climate control is set and forget almost, thru all ambient temp changes. They mostly use a setting of 23c or 24c, that would be impossible in my vehicle. There are a few on this forum with HVAC issues. At least with MY Dummy Spit now they have forwarded all the data I have collected over the last 3 months to JA. Yep Wont Hold my Breath.
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  #475  
Old 04-13-2015, 01:25 AM
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Re: 2014 Grand Cherokee Problems - Australia

After running through faults I believe I have new one, cruising at highway speed when engine went to limp mode. After stopping, message said Engine speed control module needs serviceing, stopped engine, Engine fault light up, restarted engine and was able to drive on. Unsure of problem so left cruise control off. Having another eight hours to travel, kept going, had engine go to limp mode approximately 5 more times, after arriving at destination first thing next morning at jeep dealership. Diagnosed faulty PCM module, was replaced after part was sourced from over east, roughly 460 km's heading home(1200 k trip) same fault occurred, currently awaiting Jeep assist to pick up, Engine fault light has gone off,
Laredo 2014, CRD approx. 30 k on odometer
also on return journey had exhaust regeneration come on, what is this?
as you can guess I don't live near the big cities so hoping it gets sorted, lost vehicle for 5 weeks last oct/nov electrics controlling radiator fan.
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  #476  
Old 04-13-2015, 05:37 AM
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Re: 2014 Grand Cherokee Problems - Australia

No problems here


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  #477  
Old 04-13-2015, 07:08 PM
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Re: 2014 Grand Cherokee Problems - Australia

Quote:
Originally Posted by BoggL View Post
Unsure of problem so left cruise control off. Having another eight hours to travel, kept going, had engine go to limp mode approximately 5 more times, after arriving at destination first thing next morning at jeep dealership. Diagnosed faulty PCM module, was replaced after part was sourced from over east, roughly 460 km's heading home(1200 k trip) same fault occurred, currently awaiting Jeep assist to pick up, Engine fault light has gone off,
Laredo 2014, CRD approx. 30 k on odometer
also on return journey had exhaust regeneration come on, what is this?
as you can guess I don't live near the big cities so hoping it gets sorted, lost vehicle for 5 weeks last oct/nov electrics controlling radiator fan.
I had similar DPF issues a year ago from new. After months of frustration Jeep eventually decided to replace the entire DPF unit. A year later no problems at all.
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  #478  
Old 04-13-2015, 10:28 PM
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Re: 2014 Grand Cherokee Problems - Australia

Exhaust generation is something to do with the catalytic converter if you drive under 100kph or a city driver the gunk builds up and you gave to take it out on the open road so as it can burn off this stuff back to empty mine was like this but they fixed it


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  #479  
Old 04-14-2015, 05:25 AM
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Re: 2014 Grand Cherokee Problems - Australia

Well that's a First. Feedback from Jeep is that they have looked at the data I supplied about the HVAC system. Plus the info from the service department and have authorised some items to be replaced for troubleshooting when spares are available. This is a massive step forward for Jeep. A new beginning, Customer Service.
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  #480  
Old 04-14-2015, 07:37 AM
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Re: 2014 Grand Cherokee Problems - Australia

Quote:
Originally Posted by Madmick View Post
Exhaust generation is something to do with the catalytic converter if you drive under 100kph or a city driver the gunk builds up and you gave to take it out on the open road so as it can burn off this stuff back to empty mine was like this but they fixed it
That may be what your dealer told you, but it's not correct. It is a software fault, you should get regen even in city driving.

If you want to learn all about it, read this thread from this post #569 where Steve starts to crack whats going on. - Is DPF issue for 2014 CRD fixed now?
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