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-   -   New WK2 JGC, off-roading, and on-going engine "fun" (http://www.jeepforum.com/forum/f309/new-wk2-jgc-off-roading-going-engine-fun-1473385/)

ShinobiDave 02-03-2013 03:45 PM

New WK2 JGC, off-roading, and on-going engine "fun"
 
1 Attachment(s)
Hey all -

I'm new to the community and proudly enjoying my 2012 Jeep Grand Cherokee Limited (4x4 3.6L) and have had the chance to off-road it in Death Valley Park and Red Rock Canyon. Very happy with the purchase and I have over 27k miles on the Jeep, having owned it for a little over a year now. Overall its been a great vehicle so far, though I have been having some ongoing engine issues.

The highlights:
  • At around 20k miles, I started experiencing intermittent engine starts. i.e. I start the Jeep, it attempts to turn over, but shuts off. Wait a minute or two, push-to-start again, attempts to turn over for about 10 seconds, then cuts out. It usually does this cold and I can resolve by giving it a little gas after trying to start. OR remote starting it. However, malfunction indicator light (MIL) comes on and stays on (which you can't remote start it).
  • -Took it to Jeep, they flashed the ECU with whatever the latest upgrade was, hoping that would solve the issue. No joy, still intermittent starts. MIL light comes back on, so no remote start.
  • Took it back to Jeep dealership, they replaced a fuel purge solenoid. Still intermittent starts, MIL comes back on.
  • Took it back to Jeep, they get an error code for #6 cylinder misfire. They order and replace cylinder head and valve (RL141353-AC).
  • I literally go to pick it up at the dealership and it doesn't start the when I pick it up... So still having intermittent start and now I also have a coolant leak. There is coolant fluid sprayed on the bottom of my engine and getting a little puddle on the floor of my garage after having it for 2 days. Back to the dealership this week...

Everything is still covered under the warranty, so I'm going to keep bring it back for them to work on. I would think the issue has something to do with the fuel pump / fuel delivery system, but their going off of the codes and their list of fixes. Otherwise the jeep has been great and the dealership has been helpful trying to chase down the issues...

Anyway, attempting to attach a picture from my trip at Death Valley, hope you enjoy.

-Dave

ShinobiDave 02-06-2013 09:03 AM

Update: Coolant leak was just a broken hose clamp. Computer had no further error codes for the intermittent start issue, so no change on that. Otherwise been running fine since the cylinder head change.

chdavis 02-15-2013 10:17 PM

You're well into the stipulations of most states' Lemon Laws. I'm not familiar with CA law, but I'd imagine it's pretty consumer friendly.

jim_in_PA 02-16-2013 04:21 PM

That photo is awesome!

ShinobiDave 02-17-2013 01:31 AM

Quote:

Originally Posted by jim_in_PA
That photo is awesome!

Thanks Jim. Someone mentioned I should try to submit it and a couple others I have to Jeep but I'm probably way outclassed with their pro photographers.

MickinNY 02-17-2013 07:47 AM

Quote:

Originally Posted by ShinobiDave (Post 14982461)
Thanks Jim. Someone mentioned I should try to submit it and a couple others I have to Jeep but I'm probably way outclassed with their pro photographers.

Maybe you're just being modest, but I wouldn't be so sure about being outclassed. Pro or not, that's a great picture!

ShinobiDave 02-21-2013 05:16 PM

Visited the dealership earlier in the week and the Jeep did the intermittent start for them as well. (So I'm not crazy...) Anyway, another code popped which said the key fob was loosing communication with the receiver / switch and they predict that is what was causing the Jeep to cut out after the Start button was pushed and vehicle attempted to turn-over.

Codes:
PCM-CODE P0513-STORED INVALID SKIM KEY. WCM CODE B1A28 STORED ECM MISMATCH WITH SKIM.

Replaced the key fob and switch:
56046736-AD FOB ITEG 8059057
1FU931X9-AC SWITCH IG 8053059

All covered under warranty.

Been running all week without having the intermittent starts, which is better than what it was doing before. So after ECM flash, purge solenoid, cylinder head, key fob & switch/receiver, hopefully the problem has been solved...


Quote:

Originally Posted by chdavis (Post 14977384)
You're well into the stipulations of most states' Lemon Laws. I'm not familiar with CA law, but I'd imagine it's pretty consumer friendly.

Thanks for the thought, I didn't even think of that but I may look into it. My initial take is that because it hasn't made the car completely inoperable or a safety concern, plus being over 28k miles now, the juice may not be worth the squeeze.

Iamnid 02-21-2013 11:29 PM

Good luck with that. Mine is in the shop again for the fourth time since November with intermittent starts... Just cranks forever and never starts. Every time they get it running again and claim to have found the problem, but it pops up again a few weeks later. Lemon laws are a ***** in California. I've started a case but am not very hopeful after talking to a few lemon law attorneys. Last jeep ever.

ShinobiDave 05-08-2013 11:44 PM

To follow up on my original post...

I think we finally replaced enough things on the Jeep to solve this intermittent start problem. The dealer replaced the WIN-Module and key fobs and seems to be starting fine after a few weeks. The part numbers and description:

68105738-AD MODULE WI 8035031
56046736-AE FOB INTEG 8059057

They've had other Jeeps (WK2) coming in more and more with this problem and replacing the WIN Module seems to have solved the issue. But I've been down this road before...

-Dave

Jerseymark 05-10-2013 04:35 AM

Quote:

Originally Posted by MickinNY (Post 14982911)

Maybe you're just being modest, but I wouldn't be so sure about being outclassed. Pro or not, that's a great picture!

X2 that picture could be used in one of the jeep booklets or on the website.
BTW good luck with the engine problems. Hopefully they got it fixed now.

JetBlast 05-13-2013 08:25 AM

That is definitely an awesome picture. I actually thought it was a booklet cover.

ShinobiDave 08-27-2013 11:51 PM

Follow-up, several months later... The win module replacement seems to have corrected the intermittent start problem. The JGC has been running great (and starting just fine) ever since. Up to 39k miles on my '12!


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