maybe some one can point me in the right direction my 02 acr has a noise like some thing is loose when i go over bumpy roads ive tracked it down to the right rear sounds like loose shock but i checked and even tightened the bolts still have problem, hope some one can help. thanks
bad noise rear 02 acr
- Thread starter cmauro600
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Vic
VCA Venom Member
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Hmmm, I 'm having a clunk, right rear, cant find it either, yet. Wwe tightened everything that can be tightened, still clunks. Big mystery to me. Let us know if you find your problem, and I'll do the same.
safireviper
Enthusiast
When I got my 02 ACR -- it had a terrible clunking in the rear. It turned out that the rearend differential needed friction modifier added to it. I did and the clunk went right away. I don't know if that's what you're hearing.
HOGDEALER
Enthusiast
safireviper - What is "Friction Modifier"??
safireviper
Enthusiast
Friction Modifier ( or maybe reducer ) is a 3 oz. bottle of fluid you put in the rear differential that I got from Chrysler and it completely stopped the noise I was getting from my rear differential. Apparently it was not put in at the time of assembly.
Actually...Mopar's "limited Slip Additive Friction Modifier" is a 4 oz. bottle...part number 04318060AB...that is addided to the differential along with approx. 40 oz of Mopar's "Synthetic Gear & Axle Lubricant 75W-140"...part number 04874469.
2002_Viper_GTS_ACR
Enthusiast
Guess WHAT...
I get it too, it sounds like a set of bad shocks, but the car handles like a dream, it makes some FUNNY knocking noise, like the back glass hatch is lose, but its not. It sounds like it might be an ACR thing, or an 01/02 thing. I wonder who we should contact to get it fixed, my VIPER tech was suprised by the sound, but I wouldnt let him touch the car.... this is a little interesting that a few of us have that going on.
PS. IT IS NOT THE DIFF. BECASUE I RECENTLY REPLACED MY COMPLETE FLUIDS IN DIFF AND TRANNY, AND ADDED THE 4 OZ OF FRICTION MODIFIER AS STATED. Still got the sound !!
I get it too, it sounds like a set of bad shocks, but the car handles like a dream, it makes some FUNNY knocking noise, like the back glass hatch is lose, but its not. It sounds like it might be an ACR thing, or an 01/02 thing. I wonder who we should contact to get it fixed, my VIPER tech was suprised by the sound, but I wouldnt let him touch the car.... this is a little interesting that a few of us have that going on.
PS. IT IS NOT THE DIFF. BECASUE I RECENTLY REPLACED MY COMPLETE FLUIDS IN DIFF AND TRANNY, AND ADDED THE 4 OZ OF FRICTION MODIFIER AS STATED. Still got the sound !!
Ulysses
Enthusiast
It's been known for a while that some ACR's had a clunking sound coming from the suspension. If you do a search, you might find some old discussions on the subject. I believe Chuck Tator (The Wizard) was able to find a fix.
Edit: I believe DC is aware of the noise and they offered a fix. (Not sure if they still offer it). If I recall correctly, the fix was to swap out the shocks to the GTS shock setup, which was not a popular option.
Double Edit: Found a link to the old post: Link to ACR Rattling
Edit: I believe DC is aware of the noise and they offered a fix. (Not sure if they still offer it). If I recall correctly, the fix was to swap out the shocks to the GTS shock setup, which was not a popular option.
Double Edit: Found a link to the old post: Link to ACR Rattling
2002_Viper_GTS_ACR
Enthusiast
Yeah, but that was for the KONI'S not the Racing Dynamics, and all 01/02's have racing dynamics. So DODGE might be needing to do a little something again regarding this one.
-Jon
-Jon
