Problem after the 1/4 mile! T-case???
Apr 20, 2006, 12:11 PM
#1
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Problem after the 1/4 mile! T-case???
Clutch is an Exedy triple carbon with less than 10K miles on it, 25-30 launches, and a lot of highway driving.
I went to the track last Friday and finally made it into the 11's. I probably made around 8 or 9 11 second pass while using the two step on the AEM.
I noticed after the second pass that the car was having a strange slipping issue on the launch, but I know it wasn't the clutch because I heated it up several times. I also noticed it started getting harder to get into 2nd and 4th gear(slight grind).
Fast forward, I leave the track and got onto the highway to head home. When I got into 5th gear cruising, I punched it and the rpms shot up about 1000rpms and then the car began to move, BUT the car also began to shake violently. The car also pulls to the right slightly.
If I gun it while cruising the car acts like it is slipping in every gear now for about 500-1000 rpms except in 5th, if I have it in 5th and 100% full throttle it not only slips ,but the car also shakes violently.
Fast forward to the next day, I was slowing down(off throttle) and around 35 mph when the car began to shake/hop violently AGAIN.
I drove home immediately and parked the car. After speaking with someone they said to drive the car in small circles in both directions and see if I hear a clunking noise. I drove both directions and didn't hear any noise at all. No clunking, rattle, no vibration, nothing.
I called Shep Racing and talked to someone on the phone explaining my problem. They said it sounds like the transfer case is the issue, but without tearing it apart it is hard to tell.
I had the car towed to a shop and I am having the t-case and tranny redone by Shep.
Has anybody else had these same issues and what was the problem? I just want to make sure I am spending all this money replacing the right parts.
I went to the track last Friday and finally made it into the 11's. I probably made around 8 or 9 11 second pass while using the two step on the AEM.
I noticed after the second pass that the car was having a strange slipping issue on the launch, but I know it wasn't the clutch because I heated it up several times. I also noticed it started getting harder to get into 2nd and 4th gear(slight grind).
Fast forward, I leave the track and got onto the highway to head home. When I got into 5th gear cruising, I punched it and the rpms shot up about 1000rpms and then the car began to move, BUT the car also began to shake violently. The car also pulls to the right slightly.
If I gun it while cruising the car acts like it is slipping in every gear now for about 500-1000 rpms except in 5th, if I have it in 5th and 100% full throttle it not only slips ,but the car also shakes violently.
Fast forward to the next day, I was slowing down(off throttle) and around 35 mph when the car began to shake/hop violently AGAIN.
I drove home immediately and parked the car. After speaking with someone they said to drive the car in small circles in both directions and see if I hear a clunking noise. I drove both directions and didn't hear any noise at all. No clunking, rattle, no vibration, nothing.
I called Shep Racing and talked to someone on the phone explaining my problem. They said it sounds like the transfer case is the issue, but without tearing it apart it is hard to tell.
I had the car towed to a shop and I am having the t-case and tranny redone by Shep.
Has anybody else had these same issues and what was the problem? I just want to make sure I am spending all this money replacing the right parts.
Last edited by EVOONYOASS; Apr 21, 2006 at 08:36 AM.
Apr 20, 2006, 12:19 PM
#2
Originally Posted by EVOONYOASS
Clutch is an Exedy triple carbon with less than 10K miles on it, 25-30 launches, and a lot of highway driving.
I went to the track last Friday and finally made it into the 11's. I probably made around 8 or 9 11 second pass while using the two step on the AEM.
I noticed after the second pass that the car was having a strange slipping issue on the launch, but I know it wasn't the clutch because I heated it up several times. I also noticed it started getting harder to get into 2nd and 4th gear(slight grind).
Fast forward, I leave the track and got onto the highway to head home. When I got into 5th gear cruising, I punched it and the rpms shot up about 1000rpms and then the car began to move, BUT the car also began to shake violently. The car also pulls to the right slightly.
If I gun it while cruising the car acts like it is slipping in every gear now for about 500-1000 rpms except in 5th, if I have it in 5th and 100% full throttle it not only slips ,but the car also shakes violently.
Fast forward to the next day, I was slowing down(off throttle) and around 35 mph when the car began to shake/hop violently AGAIN.
I drove home immediately and parked the car. After speaking with someone they said to drive the car in small circles in both directions and see if I hear a clunking noise. I drove both directions and didn't hear any noise at all. No clunking, rattle, no vibration, nothing.
I called Shep Racing and talked to someone on the phone explaining my problem. They said it sounds like the transfer case is the issue, but without tearing it apart it is hard to tell.
I had the car towed to a shop and I am having the t-case and tranny redone by Shep.
Has anybody else had these same issues and what was the problem? I just want to make sure I am spending all this money replacing the right parts.
I went to the track last Friday and finally made it into the 11's. I probably made around 8 or 9 11 second pass while using the two step on the AEM.
I noticed after the second pass that the car was having a strange slipping issue on the launch, but I know it wasn't the clutch because I heated it up several times. I also noticed it started getting harder to get into 2nd and 4th gear(slight grind).
Fast forward, I leave the track and got onto the highway to head home. When I got into 5th gear cruising, I punched it and the rpms shot up about 1000rpms and then the car began to move, BUT the car also began to shake violently. The car also pulls to the right slightly.
If I gun it while cruising the car acts like it is slipping in every gear now for about 500-1000 rpms except in 5th, if I have it in 5th and 100% full throttle it not only slips ,but the car also shakes violently.
Fast forward to the next day, I was slowing down(off throttle) and around 35 mph when the car began to shake/hop violently AGAIN.
I drove home immediately and parked the car. After speaking with someone they said to drive the car in small circles in both directions and see if I hear a clunking noise. I drove both directions and didn't hear any noise at all. No clunking, rattle, no vibration, nothing.
I called Shep Racing and talked to someone on the phone explaining my problem. They said it sounds like the transfer case is the issue, but without tearing it apart it is hard to tell.
I had the car towed to a shop and I am having the t-case and tranny redone by Shep.
Has anybody else had these same issues and what was the problem? I just want to make sure I am spending all this money replacing the right parts.
Apr 20, 2006, 12:28 PM
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Originally Posted by EVOONYOASS
I had the car towed to a shop and I am having the t-case and tranny redone by Shep.
Has anybody else had these same issues and what was the problem? I just want to make sure I am spending all this money replacing the right parts.
Has anybody else had these same issues and what was the problem? I just want to make sure I am spending all this money replacing the right parts.
Originally Posted by EVIL_EVO_VIII
Sounds like you blew the front diff on the Tcase and it would make clunks ONLY while turning left or right, i would send it to TRE or Shep to get it fixed
Apr 20, 2006, 12:31 PM
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Originally Posted by Jasil
The wonders of AWD!! Sounds like the front diff even if the clunking noise isn't apparent.
Apr 20, 2006, 12:31 PM
#6
Originally Posted by EVOONYOASS
I guess you missed this part? The car makes no noise while turning, no whining, no clunks, nothing!
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Apr 20, 2006, 12:38 PM
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Originally Posted by EVIL_EVO_VIII
Well, after reading this again, sounds like your clutch is going pretty bad, if you hit it in 5th and the rpms shot up, your clutch is definitely slippin. Send it out anyway and upgrade to a lsd and do the trans whiel ur at it, mights as well....
I find it hard to believe it could be the clutch also.
Apr 20, 2006, 12:40 PM
#9
Originally Posted by EVOONYOASS
I was told there is no way the problem was the Exedy triple carbon, especially on a car with 400whp, less than 10K miles on it, and only 25-30 launches.
I find it hard to believe it could be the clutch also.
I find it hard to believe it could be the clutch also.
Apr 20, 2006, 12:44 PM
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Originally Posted by EVIL_EVO_VIII
Well if the rpms are shooting up like that in 5th when u floor it, those a re signs of a slipping clutch..
For the $,$$$ of the Exedy triple, IT BETTER NOT BE THE CLUTCH, not this soon.
Apr 20, 2006, 12:50 PM
#12
Originally Posted by EVOONYOASS
Thats what I'm trying to explain, it "slips" but it doesn't feel like a clutch slip. Feels different, but hard to explain.
For the $,$$$ of the Exedy triple, IT BETTER NOT BE THE CLUTCH, not this soon.
For the $,$$$ of the Exedy triple, IT BETTER NOT BE THE CLUTCH, not this soon.
Apr 20, 2006, 05:01 PM
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Anybody else have these same issues?
Tomorrow, the shop is taking out the t-case and tranny to ship them out to Shep. I should know more when they are removed.
Tomorrow, the shop is taking out the t-case and tranny to ship them out to Shep. I should know more when they are removed.
Apr 23, 2006, 09:21 AM
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You need someone who has tracked it and driven home just like you to diagnose this one without pulling it.
I would definitely expect the LSD/Tcase to be toast and not the clutch. The violent hopping and tossing mixed with slippage sounds like axles and LSD.
Good luck.
I would definitely expect the LSD/Tcase to be toast and not the clutch. The violent hopping and tossing mixed with slippage sounds like axles and LSD.
Good luck.