Timing Chain Tooth Skip - Just a RAM thing? - Jeep Garage - Jeep Forum

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Old 05-09-2016, 01:07 PM
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Timing Chain Tooth Skip - Just a RAM thing?

Hello All,

While searching online for other EcoDiesel related stuff I cam across a lot of threads on RAM forums about issues with the timing chain jumping teeth after around 50k miles.

Assuming that the base engine is the same between the RAM and the Grand Cherokee, are we to expect the same kind of issues with our vehicles? Anybody out there already had this diagnosed on their vehicle?

I'm currently at 45k miles and expect to hit 50k miles within the next two months. I understand that this isn't a predictable failure, but it feels like a potential ticking hand grenade under the hood!

I don't fancy the cost of preventative maintenance on the chain drive, but it might be more cost effective than replacing a bricked engine.

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Old 05-09-2016, 11:18 PM
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Quote:
Originally Posted by chappnch View Post
Hello All,

While searching online for other EcoDiesel related stuff I cam across a lot of threads on RAM forums about issues with the timing chain jumping teeth after around 50k miles.

Assuming that the base engine is the same between the RAM and the Grand Cherokee, are we to expect the same kind of issues with our vehicles? Anybody out there already had this diagnosed on their vehicle?

I'm currently at 45k miles and expect to hit 50k miles within the next two months. I understand that this isn't a predictable failure, but it feels like a potential ticking hand grenade under the hood!

I don't fancy the cost of preventative maintenance on the chain drive, but it might be more cost effective than replacing a bricked engine.
I've not heard of one yet and I feel sorry for that instead of enjoying your vehicle you're waiting for the sword of damacles to finally fall. If you had any idea of the number of vehicles on the road compared to the number of vehicles with issues you'd, hopefully, not live in fear. I really feel bad for the people who read of the onsie twosies and think there's is next. This is why I'm just about done with this forum.
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Old 05-10-2016, 07:06 AM
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Quote:
Originally Posted by definn12 View Post

I've not heard of one yet and I feel sorry for that instead of enjoying your vehicle you're waiting for the sword of damacles to finally fall. If you had any idea of the number of vehicles on the road compared to the number of vehicles with issues you'd, hopefully, not live in fear. I really feel bad for the people who read of the onsie twosies and think there's is next. This is why I'm just about done with this forum.
This behavior is on any forum, not just ours. Besides there are plenty of people who are willing to help despite any issues one may have. I wouldn't be so quick to dump a forum over that.
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Old 05-10-2016, 06:12 PM
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Re: Timing Chain Tooth Skip - Just a RAM thing?

Yep...thats the nature of forums. All man-made products have issues. I'd rather know than not know. I can sleep at night even knowing the world may fall apart tomorrow.
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Old 05-10-2016, 07:57 PM
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Re: Timing Chain Tooth Skip - Just a RAM thing?

I appreciate the feedback. I have maintenance performed on schedule and have an extended warranty. It's just that we tend to do high mileage trips and I'd hate to be stuck roadside with a shot engine. I'm not losing sleep over it, just curious if this issue had hit the GC owners out there.
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Old 05-10-2016, 08:11 PM
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Re: Timing Chain Tooth Skip - Just a RAM thing?

I appreciate the feedback. I have maintenance performed on schedule and have an extended warranty. It's just that we tend to do high mileage trips and I'd hate to be stuck roadside with a shot engine. I'm not losing sleep over it, just curious if this issue had hit the GC owners out there.
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Old 05-10-2016, 08:35 PM
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Re: Timing Chain Tooth Skip - Just a RAM thing?

I'm a Ram ecodiesel owner and this Timing Chain Tooth Skip you speak of was actuallycam gear slippage and occurred to one owner at something like 140,000 miles. This was a highly modified truck running an aftermarket tuner.
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Old 05-11-2016, 03:58 PM
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Re: Timing Chain Tooth Skip - Just a RAM thing?

Didn't the RAM ecodiesel first appear in the 2015 model year? If so, I doubt many have clocked 50,000 miles yet.
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Old 05-11-2016, 08:07 PM
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Re: Timing Chain Tooth Skip - Just a RAM thing?

Quote:
Originally Posted by Hammerhead View Post
Didn't the RAM ecodiesel first appear in the 2015 model year? If so, I doubt many have clocked 50,000 miles yet.
2014 was the first year. I know of many with over 50K miles. There have been far too many oil cooler failures and bottom end failures, but not the cam gear.

To Date from the Ram forum:

Catastrophic Engine Failures

GRAND TOTAL as of 05/10/2016
Engine Failures = 59
Oil Cooler Failures = 27
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Old 05-23-2016, 08:31 AM
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Re: Timing Chain Tooth Skip - Just a RAM thing?

Wasn't the bottom end failures related to a bad batch of engines from VM that didn't have the proper torque on the rod end caps? All of these are gonna failure spectacularly. All are being warrantied and the problem has been fixed.
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Old 05-23-2016, 05:23 PM
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Re: Timing Chain Tooth Skip - Just a RAM thing?

Quote:
Originally Posted by Tinman2 View Post
Wasn't the bottom end failures related to a bad batch of engines from VM that didn't have the proper torque on the rod end caps? All of these are gonna failure spectacularly. All are being warrantied and the problem has been fixed.
Unfortunately, nobody knows for sure.
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Old 05-25-2016, 02:14 AM
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Re: Timing Chain Tooth Skip - Just a RAM thing?

Quote:
Originally Posted by Tinman2 View Post
Wasn't the bottom end failures related to a bad batch of engines from VM that didn't have the proper torque on the rod end caps? All of these are gonna failure spectacularly. All are being warrantied and the problem has been fixed.
I read on one of the RAM forums that it was a batch of 2014 motors that had rod bolts cross threaded which caused the grenading. YMMV
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