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Unread 05-13-2015, 04:07 PM   #1
aresf1
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2010 WK Timing Chain Broke

I know I am brand new to this forum, but I was hoping to get some insight and/or advice on what other forum members might do in my situation:

My 2010 Grand Cherokee with the 5.7 had the timing chain break at 98k miles and I am now looking at a $1500-2000 repair bill.

What would you guys do?
- Just have it repaired?
- Find a used hemi on craigslist and drop it in?
- Drop in a a performance built engine?

This isn't a vehicle I'm looking to spend a ton of money building, so I'm looking for the most cost effective solution more than anything.

The icing on the cake is that the warranty expired in March (100K/5 year warranty, whichever comes first). FCA/Jeep customer assistance won't do anything to help me out, despite how close it is to the warranty expiration. The fact that I'm the second owner and worked for Chrysler for over 3 years didn't help, either (I asked).

Thanks for your input.

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Unread 05-13-2015, 04:19 PM   #2
JeepN4KC
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Who told you the timing chain broke?

Timing belts break but I've not heard of a timing chain breaking - that's why timing chains are the cats meow compared to belts.

Not saying it can't happen just sounds suspect
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Unread 05-13-2015, 04:34 PM   #3
aresf1
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It's the chain. Here's an article that tells a nice story on the rampant issue: http://www.hotrod.com/news/chrysler-...-chain-defect/
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Unread 05-13-2015, 05:38 PM   #4
hxdrummerxc
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Damn that sucks......

Looks like it only happens on the 2009 and newer hemi's.

That's a tough call man. I would probably see how much I could get a 6.1 put in for because I have always wanted that after I seen a commander swap in a 6.1 from the SRT. But I know you said that this isn't a vehicle that you want to put money into.

$2,000 would still probably be a lot cheaper than a new or refurbished 5.7
I thought the Jasper rebuilds were going for over $3,000 just for the motor, no labor costs included.

Has anyone looked deeper into the motor yet? The article says that if the motor is cranked over AFTER the belt broke, it will likely cause piston-to-valve damage. Could possibly add more to that $2,000 bill if that hasn't been noted yet.
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Unread 05-13-2015, 05:58 PM   #5
RCS1300
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The most cost effective solution is fixing it. Get a few estimates before you award the business.
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Unread 05-13-2015, 06:27 PM   #6
90grandoneer
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The "required" (by the mfg.) dealer repair procedures are about as absurd and dumb as you can get. As the Hod Rod article stated, you'll be sure to have to do massive repairs on what possibly could have been an easy fix. There have been chain/tensioner problems with the earlier Hemi's too, but all that I've heard of were with highly modified (including forced induction and N2O) units that are using the stock 5.7 Hemi chain tensioner, and the MDS was in no way involved. The tensioner is the problem (it fails first and that takes the chain out) with the early ones. I know, on both my Hemi's, when I changed the cams I put 6.1 tensioners on them.....about $25-30 each. They are quite a bit more stout than the stock 5.7 ones and the rubbing block is made of a different material. I think, if I owned a late model Hemi, I'd be pulling it apart myself and fixing it before it failed, just to make sure I didn't have to deal with the stupid mfg. and stealers......not to mention the inconvenience and hassle involved. I really feel for you guys that may be facing this problem. SOUNDS LIKE ANOTHER N23 ON THE HORIZON.
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Unread 05-13-2015, 09:02 PM   #7
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According to the Hot Rod article linked--and to the Chrysler recall notice--the models affected are the Challenger, Charger and 300c. I can't imagine why a Jeep with a Hemi wouldn't be included in this, but it isn't.

Moreover, this is the first mention of a failure I know of on this forum. While I'm no car expert, I've been paying pretty close attention to stuff like this (eg the N23 disaster), and I just don't see a trend here--YET, at least.

I'm sorry for the OP's troubles and I wish I could offer real help. I would just echo what has been said previously: Thoroughly shop the repairs and verify that you don't have internal engine damage before paying to replace the timing chain.
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Unread 05-14-2015, 07:26 AM   #8
90grandoneer
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John, I don't know about the later Hemi's, but the early Hemi's in the Jeeps are almost exactly the same as the passenger car ones. I know on both of mine everything is the same except the oil pan, stock exhaust logs and oil pump pickup. Maybe Chrysler doesn't think Jeepers will "hot rod" them like the passenger guys tend to do. I hot rod both of mine on a regular basis....it's good exercise for them, LOL.
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Unread 05-14-2015, 07:37 AM   #9
scootter82
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Guess I have something else to add to the upgrade list.
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Unread 05-14-2015, 08:50 AM   #10
johngreen1234
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Based on internet posts, this just doesn't look like an issue for the Jeep, the way it is for the Charger/Challenger. This despite the 5.7 motors being virtually identical, as 90G says. And this is a HUGE issue over on the Challenger forums--if it was happening in any numbers on Jeeps we would be seeing it on this and the "other" forum.

FWIW, the recommended preventative measure is to disable MDS, either through a tune or through auto stick selecting "5" rather than "D". And it seems to be happening at highway speeds.
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Unread 05-14-2015, 10:31 AM   #11
joe989
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Not the same engine, pretty sure the jeep one is the same as the pickup, and the one in the cars attaches to a Nag1 instead of the 545RE. Its like saying the Hemi in the half ton is the same as the hemi in the 3/4 ton, the 3/4 is a heavy duty engine and doesnt have MDS, and has less hp for reliability sake. Just because it says 5.7 hemi doesn't mean its the same engine.
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Unread 05-14-2015, 05:29 PM   #12
CavallinoRed
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Quote:
Originally Posted by joe989 View Post
Not the same engine, pretty sure the jeep one is the same as the pickup, and the one in the cars attaches to a Nag1 instead of the 545RE. Its like saying the Hemi in the half ton is the same as the hemi in the 3/4 ton, the 3/4 is a heavy duty engine and doesnt have MDS, and has less hp for reliability sake. Just because it says 5.7 hemi doesn't mean its the same engine.
+2. WK are de-tuned from what they put in Challengers. A 2009 Challenger with a 5.7 shows 372 hp @ 5200 rpm while the same 09 WK has 357 hp @ 5200 rpm.

But aresf1, that really sucks especially being just out of warranty. As long as you didn't have any valve/piston contact, repair is probably going to be your least painful option.
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Unread 05-15-2015, 10:23 AM   #13
aresf1
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Alright. Thanks for all the input. I'm using my contacts at Chrysler to try to drive this up the chain to see if they'll agree to cover it, or at least part of it.
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Unread 05-15-2015, 10:43 AM   #14
scootter82
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Let us know if they cover it!

As far as the engines being de-tuned, what about those of us that have added a bunch of performance mods? Would we not be at risk, then?
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