clutch sticks to the floor

**stealth1281** · 03-30-2008, 06:57 PM

I have a 2001 WS6 Trans Am. I just had a mild cam and heads installed putting down a little over 400rwhp. Under hard acceleration, my clutch pedal sticks to the floor and the car will not go into gear. Any ideas? Thank you

**NJ2002WS.6** · 03-30-2008, 07:11 PM

I had a similar problem in October but it wasn't while the car was moving, it was generally happeing after I started the car. It turned out that my slave cylinder was cracked and I had no fluid. While they were under the car they saw the the clutch, pressure plate, and flywheel needed to be replaced as well.

But My car had the same symtoms, clutch sticking to the floor, car won't go in gear. I can't say that is your problem, but I would say check your brake fluid reserve container first. If it is bone dry then that can be your problem.

**mpfranks** · 03-31-2008, 05:14 PM

sounds like you def need a clutch. i had the same problem. my car only had 17k but when i shifted hard into thrid my pedal would stick and it wouldnt go into gear. had to have the flywheel, disc, and slave replaced. these cars have hydraulic clutches and can cause some problems. if i am not mistaken the clutch shares a master cylinder with the brakes, so if you pump your brake pedal the clutch should become stiffer. but either way, clutches dont last forever, especially in sports cars with perf upgrades. oh, and if you were wondering, $1600 for everything at the dealer....

**stealth1281** · 03-31-2008, 06:18 PM

I checked my fluids, and all look like they're fine. The only time it sticks to the floor and I can't shift is when I'm in the high rpms where i make peak horsepower. It never happened before I installed my heads/cam.

**Danger731** · 03-31-2008, 06:24 PM

I have the same issue, it may be the slave but I'm no tranny expert.

**BULLET_WS6** · 03-31-2008, 06:29 PM

you need to do the drill mod... it should fix everything... look it up at install university or something... your hydraulics have a restricted section causing it to stick... its a nice write up and all you gotta do is this simple free deal and you should be alright

**stealth1281** · 04-01-2008, 04:24 PM

Originally Posted by BULLET_WS6

you need to do the drill mod... it should fix everything... look it up at install university or something... your hydraulics have a restricted section causing it to stick... its a nice write up and all you gotta do is this simple free deal and you should be alright

already did the drill mod. it helped some, but the problem is still there. two different "car" people feel my pressure plate can't handle all the hp i'm throwing at it. If that's the case, I may as well replace the entire clutch assembly.
so....my next question is, what brand of clutch would you guys recommend? my car is a DD with some time at the track

**BULLET_WS6** · 04-01-2008, 05:46 PM

Originally Posted by stealth1281

already did the drill mod. it helped some, but the problem is still there. two different "car" people feel my pressure plate can't handle all the hp i'm throwing at it. If that's the case, I may as well replace the entire clutch assembly.
so....my next question is, what brand of clutch would you guys recommend? my car is a DD with some time at the track

spec... spec stage 2 should do good

**mpfranks** · 04-02-2008, 04:14 PM

if that flywheel and pressure plate are in good shape, then they should be able to handle 500hp no problem. how many miles are on your car? still sounds to me like you need a clutch. this is the same thing that happened to me, like i said you couldnt notice it unless under a big load. city driving it was totally fine, until one day on the highway the pedal went to the floor and never came back up. i thought it was a hydraulic issue till i saw the bent fingers on the pressure plate, missing teeth on the flywheel and the treads coming through the disc. obvioulsy the owner before me (a woman) couldnt drive a stick. and if you still dont beleive me, ask how many guys have 400+ hp and still have their factory clutch. and another thing to remember, a stiffer competition clutch will be a bitch for daily driving.

**stealth1281** · 04-02-2008, 09:11 PM

Originally Posted by mpfranks

if that flywheel and pressure plate are in good shape, then they should be able to handle 500hp no problem. how many miles are on your car? still sounds to me like you need a clutch. this is the same thing that happened to me, like i said you couldnt notice it unless under a big load. city driving it was totally fine, until one day on the highway the pedal went to the floor and never came back up. i thought it was a hydraulic issue till i saw the bent fingers on the pressure plate, missing teeth on the flywheel and the treads coming through the disc. obvioulsy the owner before me (a woman) couldnt drive a stick. and if you still dont beleive me, ask how many guys have 400+ hp and still have their factory clutch. and another thing to remember, a stiffer competition clutch will be a bitch for daily driving.

My car only has 37,000 miles on it. From what i've read, the stock pressure plate can only handle 400rwhp. Since I need to replace my pressure plate, i'm just going to replace the whole clutch assembly.
I was thinking of going with a z06 clutch, but what do you guys think of the LS7 clutch package? They say it feels like stock yet grabs a lot better and can hold much more power. $399 for the clutch pp and new flywheel

**Danger731** · 04-02-2008, 09:18 PM

I would stick with a GM product , the LS7 package is the way to go.

**mpfranks** · 04-03-2008, 06:30 AM

i agree, stick with gm.

**TACE02** · 04-03-2008, 06:46 AM

Originally Posted by stealth1281

already did the drill mod. it helped some, but the problem is still there. two different "car" people feel my pressure plate can't handle all the hp i'm throwing at it. If that's the case, I may as well replace the entire clutch assembly.
so....my next question is, what brand of clutch would you guys recommend? my car is a DD with some time at the track

LOL, sorry had to laugh cause everyone always says "Do the Drill Mod". Personally I think that is a joke, fix what is actually causing the problem and the drill mod is not needed. I have been over 400 RWHP for over 2 years now, with plenty of track passes, and do not have the drill mod. I did however have the same exact problem as you do now right after the H/C install on my car with a brand new Center Force clutch (POS) installed at the same time. The fix was to change the clutch and slave. You definately want to go with a clutch that can truly hold the power. I would personally suggest a Textralia, course I may be a little biased on that opinion (has served my purposes greatly). LS7 clutches seem to be most peoples clutch of choice though. Course they are cheap and are used in higher HP cars, so why not.

**JonB** · 04-03-2008, 11:48 AM

Check my sticky out at the top of this section called sticking clutch pedal write-up should help you out.

http://www.ls1.com/forums/showthread.php?t=55824

Originally Posted by TACE02

LOL, sorry had to laugh cause everyone always says "Do the Drill Mod". Personally I think that is a joke, fix what is actually causing the problem and the drill mod is not needed.

I agree the drill mod is not the solution. It has helped some but it 99.9% of the time is not the solution for a sticking clutch pedal. I still recomend the drill mod, it made a huge difference in the way my car shifted. It was much smother at normal rpm shifts and much much easier at high rpm shifts.