Lifter Noise, differential lock sensor, oil leak, Ripp SC

[kustomguy]

Hi everyone. New to the forum. I appreciate any insight offered here and hope to help anyone with similar issues.
Ten days ago my 2020 JT with 30K started having issues. First to happen was my rear differential lock light came on indicating it locked by itself. This happened at 75 MPH. It did not actually lock. And I can’t turn off the light. It’ll just blink.

Five days later, while waiting for my dealer appointment, a trouble light came on. The scan indicated cat issues. I cleared it temporarily. The next day the truck developed lifter noise. It sounds like an old Mercedes diesel. Now the scan reads cam position sensor and cat. And suddenly it’s leaking what appears to be oil. I got it to the dealer.

More to this….my truck has a Ripp Supercharger on it with 10K on the SC. It has performed great since install. Accelerates smoother and shifts better with the custom tune….. until now.

Dealer won’t touch it. They said even if I took the SC off and tried to warranty the issues, Jeep will know that it’s been modified. They say the Ripp PCM won’t even allow them to get a read. Something about it locking the gateways.

Not sure what to do. Has me thinking about an SRT8 swap by AMW. But I really don’t think any of this was caused by the SC. Anyone have experience removing mods and a tune in order to get warranty? Anyone have a SC destroy their truck? Anyone’s gas powered Gladiator sound like a diesel?

I think I have a faulty cam with a damaged lobe and the famous faulty lock sensor. I don’t get the cat issue or the oil leak though.

I need and use the extra power for light towing. But I don’t beat on the truck. It is driven respectfully.

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[Chris262]

Chances are they already flagged your vehicle and voided your warranty with anything powertrain related. You could take it to another dealership to find out.

 

[SelfmodJT]

Hi everyone. New to the forum. I appreciate any insight offered here and hope to help anyone with similar issues.
Ten days ago my 2020 JT with 30K started having issues. First to happen was my rear differential lock light came on indicating it locked by itself. This happened at 75 MPH. It did not actually lock. And I can’t turn off the light. It’ll just blink.

Five days later, while waiting for my dealer appointment, a trouble light came on. The scan indicated cat issues. I cleared it temporarily. The next day the truck developed lifter noise. It sounds like an old Mercedes diesel. Now the scan reads cam position sensor and cat. And suddenly it’s leaking what appears to be oil. I got it to the dealer.

More to this….my truck has a Ripp Supercharger on it with 10K on the SC. It has performed great since install. Accelerates smoother and shifts better with the custom tune….. until now.

Dealer won’t touch it. They said even if I took the SC off and tried to warranty the issues, Jeep will know that it’s been modified. They say the Ripp PCM won’t even allow them to get a read. Something about it locking the gateways.

Not sure what to do. Has me thinking about an SRT8 swap by AMW. But I really don’t think any of this was caused by the SC. Anyone have experience removing mods and a tune in order to get warranty? Anyone have a SC destroy their truck? Anyone’s gas powered Gladiator sound like a diesel?

I think I have a faulty cam with a damaged lobe and the famous faulty lock sensor. I don’t get the cat issue or the oil leak though.

I need and use the extra power for light towing. But I don’t beat on the truck. It is driven respectfully.

Doesnt RIPP offer a warranty or does it only pertain to the sc components? I guess it would be hard to prove it was the sc if there were no issues for 10k miles.

 

[sass JT]

IMO, you need to pull the mods and go back to stock… pain in the azz I know. And try and go to another dealer. If they say they can’t touch it, then they can’t… you added engine mods and yes, unfortunately, can void your power train warranty. Now they have to prove that the installed device broke your vehicle but really hard to say.

As for the diff locker, they shouldn’t be able to void the warranty there unless you have changed anything there (ie lift, bigger tires etc etc)

now as for your engine mod well a more watched ”YouTube couple” had some type of trouble you have been in. Just passing the video along.



ps… I hope it goes better for you and you get it all solved… good luck

 

[kustomguy]

Doesnt RIPP offer a warranty or does it only pertain to the sc components? I guess it would be hard to prove it was the sc if there were no issues for 10k miles.

I talked to Ripp and it only applies to SC components.

 

[kustomguy]

IMO, you need to pull the mods and go back to stock… pain in the azz I know. And try and go to another dealer. If they say they can’t touch it, then they can’t… you added engine mods and yes, unfortunately, can void your power train warranty. Now they have to prove that the installed device broke your vehicle but really hard to say.

As for the diff locker, they shouldn’t be able to void the warranty there unless you have changed anything there (ie lift, bigger tires etc etc)

now as for your engine mod well a more watched ”YouTube couple” had some type of trouble you have been in. Just passing the video along.



ps… I hope it goes better for you and you get it all solved… good luck

Thanks for the reply and video. What the dealer stated is that all powertrain components are voided due to this modification. They also agreed that technically the rear lock sensor is truly its own issue, but because they need to plug the vehicle into their factory readers to send a warranty report to Jeep, all powertrain components will be voided when Jeep sees the modifications within the computer report. I kind of regret the installing the Ripp right now.

In some ways, the warranty isn’t my greatest concern, it’s getting my truck back to operation. I wonder if I have bore scoring and other internal damage due to a faulty cam. I guess there is only one way to find out.

 

[dcmdon]

Its reasonable to expect any powertrain warranty claims to be denied (the warranty isn't "voided"). A supercharger subjects pretty much every powertrain component to increased mechanical and thermal stress. Sure, something like a lifter isn't really stressed more. But I'm also guessing that the dealer would need to remove the SC to get at them. Something even the best dealer would have no interest in doing.

Cat issues could be caused by a bad tune. I'm not saying your tune is causing the problem, just that it COULD cause the problem.

I guess the moral of the story is to understand what you are getting yourself into.

I know that at least one of the major SC makers includes a powertrain warranty with their product. Future buyers should take that into account in their choices.

***update**
A quick look at the Magnusson warranty shows that it would cover the lifters but not an oil leak unless it was a head gasket leak. This is reasonable.

 

[kustomguy]

Its reasonable to expect any powertrain warranty claims to be denied (the warranty isn't "voided"). A supercharger subjects pretty much every powertrain component to increased mechanical and thermal stress. Sure, something like a lifter isn't really stressed more. But I'm also guessing that the dealer would need to remove the SC to get at them. Something even the best dealer would have no interest in doing.

Cat issues could be caused by a bad tune. I'm not saying your tune is causing the problem, just that it COULD cause the problem.

I guess the moral of the story is to understand what you are getting yourself into.

I know that at least one of the major SC makers includes a powertrain warranty with their product. Future buyers should take that into account in their choices.

***update**
A quick look at the Magnusson warranty shows that it would cover the lifters but not an oil leak unless it was a head gasket leak. This is reasonable.

I agree with you completely about the warranty.

I went into this modification with the attitude of “it won’t happen to me”. Lesson learned.

I re-installed the custom tune and the cat code went away so you were right about that. I’ve heard that you can lose parts of the tune over time because the vehicle can relearn old things…. Is this a myth? What causes a tune to go bad? And could that cause timing issues and ultimately engine damage?

 

[ShadowsPapa]

Thanks for the reply and video. What the dealer stated is that all powertrain components are voided due to this modification. They also agreed that technically the rear lock sensor is truly its own issue, but because they need to plug the vehicle into their factory readers to send a warranty report to Jeep, all powertrain components will be voided when Jeep sees the modifications within the computer report. I kind of regret the installing the Ripp right now.

In some ways, the warranty isn’t my greatest concern, it’s getting my truck back to operation. I wonder if I have bore scoring and other internal damage due to a faulty cam. I guess there is only one way to find out.

The only way there'd be other internal damage would be if there was detonation (ping) - otherwise normal cam operation, even if a cam is defective, won't hurt other parts.

And supercharger is a risk in a way - you are taking an engine already running on the bleeding edge compression-wise, tune-wise and forcing even higher compression and combustion pressures. Open deck engines can take a lot - but still.

Cam issues are a known thing with these engines. If I were the service manager - I'd handle cam problems that are known and where there are even TSBs to deal with said cam problems - where I'd draw the line would be piston, cylinder, rod, crankshaft damage, overheating, or perhaps transmission issues.
But I think not backing a known problem - the cam - I can't see how any SC is going to mess with that.

Doesnt RIPP offer a warranty or does it only pertain to the sc components? I guess it would be hard to prove it was the sc if there were no issues for 10k miles.

If all issues always showed up within 10K miles, there'd be no reason to warrant any item for over that many miles. There can be issues that build with time and don't show up until later. We've seen JT owners go over 10K miles and then have malfunctions. There can be stackups of tolerances that allow something to last a while, but not long enough.

I know Jeep won't pay any attention to me on this, hell, most of the people here ignore me or think I'm full of crap most of the time - but I'd like the dealership shop and Jeep to explain how a supercharger is going to impact a camshaft or followers/lifters, and especially when there are many dozens of these engines getting new cams due to KNOWN issues - Jeep engineers know of the cam problem. They don't issue TSBs for something that happens only 5 times.
(I've been a professional witness in court in the past, I'd do it again. A trucking company sued another guy and blamed their problems on him - after I spoke up in detail, it was determined the trucking company employees were at fault. Their screw-up, not his. )

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