Newbie chic with tranny issues?

[GSXgirl78]

I got a 95 GSX no mods but an injen intake. Drives fine on first start up but after it warms up it won't shift into gear. Just revs and goes no where. Don't know if its tranny, clutch, or really old gear oil. I've only had it for about a month and dont drive it too often as i am trying to do all the maintenance first. Any ideas???

 

[rlacasse1]

Follow the above post with the video about adjusting the clutch freeplay!

This has likely been your problem all along. It sounds like you don't have any freeplay in your pedal, and the fluid cannot return to the reservoir. When the slave gets all pumped up, your car stops getting the power to the wheels. Shorten the rod under the dash that pushes your clutch master, until you achieve the desired freeplay.

Do it! DO IT NOW!

How so? Even with your clutch all the way at the top (foot off the pedal), you can still get under the car and push the slave cylinder in. So regardless, if you're off the pedal, the pressure from the clutch itself would push the cylinder in far enough to where it's not an issue of being disengaged.

 

[GSXgirl78]

My thoughts exactly. Either this, or it isn't adjusted. The flywheel step is critical. A few hundredths of an inch is all it takes to make it slip. This is why it is a mandatory check when replacing anything in the clutch assembly. New clutch or not, if the step height is off, the plate wont be able to push it into the flywheel hard enough to hold. If you replaced the pressure plate, then the following shouldn't apply (not saying it isn't possible to have a new pressure plate that is faulty, I haven't seen it happen though). Does the pedal feel fairly stiff or is it really easy to push in? A good pressure plate should provide a solid feeling resistance, not squishy. You should be able to tell exactly when the throw out bearing starts pushing on the plate. Where the clutch starts to grab in the pedal travel is a possible clue too. It should be pretty high up in the pedal travel, very near where you feel the throw out come into contact with the plate. Lastly, if the pedal isn't adjust like shown in the video posted earlier in this thread, it can keep the throw out bearing from completely releasing the pressure plate fingers. This would keep the pressure plate from being able to exert the full force it should on the disk, allowing it to slip. It will also quickly wear out the throw out bearing, groove and weaken the plate fingers, and over heat the clutch disk from the excessive slipping.

The pedal is VERY easy to push in.

 

[rlacasse1]

NVM, scratch that. Thought about it a minute more.

 

[GST2012GSX]

Colt4g63 is right, you should adjust your clutch pedal.

 

[bryanwheat]

IF it is pedal pump up than the pedal will get real stiff when this is happening. The original poster said that the pedal is real soft which would indicate that isn't happening here. Sounds more like the step on the flywheel is too deep which will not allow the pressure plate to put enough pressure on the disc. She also said that the pedal is releasing off the floor which would also indicate that the pedal IS NOT adjusted too tight and is actually too loose.

 

[H@xtGSX]

IF it is pedal pump up than the pedal will get real stiff when this is happening. The original poster said that the pedal is real soft which would indicate that isn't happening here. Sounds more like the step on the flywheel is too deep which will not allow the pressure plate to put enough pressure on the disc. She also said that the pedal is releasing off the floor which would also indicate that the pedal IS NOT adjusted too tight and is actually too loose.

Agreed. I think there's too much clearance at the flywheel.

 

[Colt4G63 also]

Don't believe me if you don't want to, but I know for a fact that when the pedal pumps up, the first symptom is a slipping clutch, not a hard pedal. I just finished putting a master cylinder and booster in a 2008 BMW 750Li, and now I have to go put a new door latch in a Mercedes C240. I'll check back later to see if you kids made any progress yet.


Ps. @ rlacasse1: Where did she say she pushed the slave rod in by hand? I read through all the OP's posts and didn't see that.

 

[bryanwheat]

Don't believe me if you don't want to, but I know for a fact that when the pedal pumps up, the first symptom is a slipping clutch, not a hard pedal. I just finished putting a master cylinder and booster in a 2008 BMW 750Li, and now I have to go put a new door latch in a Mercedes C240. I'll check back later to see if you kids made any progress yet.


Ps. @ rlacasse1: Where did she say she pushed the slave rod in by hand? I read through all the OP's posts and didn't see that.

It's not that i don't believe you, it have experienced the same thing multiple times. The pedal does in fact get harder when it is happening.

 

[Tiki2777]

It's not that i don't believe you, it have experienced the same thing multiple times. The pedal does in fact get harder when it is happening.

Regardless of all of this, with all of these possible problems, checking your adjustment is one of the easiest and most crucial things to rule out.

Jack's vid is great, especially for the explanations, but this vid really has good hands on stuff.

Trans & Clutch 8 - Adjust the Clutch - YouTube

 

[rlacasse1]

Don't believe me if you don't want to, but I know for a fact that when the pedal pumps up, the first symptom is a slipping clutch, not a hard pedal. I just finished putting a master cylinder and booster in a 2008 BMW 750Li, and now I have to go put a new door latch in a Mercedes C240. I'll check back later to see if you kids made any progress yet.


Ps. @ rlacasse1: Where did she say she pushed the slave rod in by hand? I read through all the OP's posts and didn't see that.

She didn't. I was simply pointing that if you the pedal is at the top of it's travel and no longer applying any pressure then the slave can easily be pushed in by either hand or by clutch plate pressure. However, if the pedal is adjusted way the f*ck out to the point of where it is constantly applying pressure to the master cylinder, then that part would never happen. I realized that later. That's why my next post said "NVM, scratch that".

 

[GSXgirl78]

Better check that fly wheel to for heat spots and cracks while you have it apart

There were beat spots no cracks but was shiny as shit.

so i was driving home from work and noticed i was not hitting boost. the most i got was 1psi....

so i was driving home from work and noticed i was not hitting boost. the most i got was 1psi....

 

[H@xtGSX]

Probably because there isn't much load being generated since the clutch is slipping.

 

[shane90gsx]

IF it is pedal pump up than the pedal will get real stiff when this is happening. The original poster said that the pedal is real soft which would indicate that isn't happening here. Sounds more like the step on the flywheel is too deep which will not allow the pressure plate to put enough pressure on the disc. She also said that the pedal is releasing off the floor which would also indicate that the pedal IS NOT adjusted too tight and is actually too loose.

Your wrong buddy! You have experienced something else.

The clutch needed to be adjusted in the first place. That wore out the first clutch. She replaced it, (and didn't check FW step spec) but if she take the FW to get re-surfaced they would have checked clearance. If that's true she is good there. And guess what... Even with new clutch it's doing the same thing. All of this after she took the car to a "good" mechanic and recent had work on stuff that needs to be bleed properly, and adjusted. Any recent work resulting in a change in driving condition must be looked at. Thus the Slave needs to bleed again. (a good full system should move under finger power) and adjust travel in the pedal as described in Jacks video from the pedal assembly. GSX girl I wish u luck, listen to colt 4g63 and have these parts looked at by someone else who knows what they are doing.

 

[bryanwheat]

Your wrong buddy! You have experienced something else.

The clutch needed to be adjusted in the first place. That wore out the first clutch. She replaced it, (and didn't check FW step spec) but if she take the FW to get re-surfaced they would have checked clearance. If that's true she is good there. And guess what... Even with new clutch it's doing the same thing. All of this after she took the car to a "good" mechanic and recent had work on stuff that needs to be bleed properly, and adjusted. Any recent work resulting in a change in driving condition must be looked at. Thus the Slave needs to bleed again. (a good full system should move under finger power) and adjust travel in the pedal as described in Jacks video from the pedal assembly. GSX girl I wish u luck, listen to colt 4g63 and have these parts looked at by someone else who knows what they are doing.

Your proof is where? I have experienced pedal pump in lots of different cars. IF the slave isn't releasing all the way than the pedal will be stiffer than normal. That is how it is. The pedal was originally releasing right off the floor, if you loosen it any more than the clutch wouldn't release at all, so an adjustment wouldn't of helped anything at all. That in itself shows that the master wasn't adjusted too tight or else it would of been releasing higher up off the floor. When you are experiencing pedal pump the pedal will release closet to the top of the throw.

 

[H@xtGSX]

Bryan is right. I had a pump up problem after changing my clutch and the pedal would get stiff as hell, then give to the floor all at once, and repeat. If it is pumping up, its going to feel stiffer than when the relief port is properly exposed, especially when the clutch is new. I haven't seen Bryan giving out questionable advice, and what I experienced correlates. Our clutch system is fairly straight forward, with the self adjustment twist, and once you understand the adjustment mechanism, the pump up problem is easy to deduce just from thinking about the chain of events that occurs when you step on the pedal. It isn't complicated.

 

[GSXgirl78]

Just wanted to update and let you all know that I am waiting to install the flywheel. Will update once complete.

 

[DSM Chase]

Let us know how she does!

 

[Animalzach]

Nice car, and welcome to the world of DSM

 

[Jaxness]

Sorry I'm late.

AnotherDSMchickinJacksonville!!

Hit me up if you ever need any help

 

[D-Kight]

Hey guys ive got a similar problem with my 99 Eclipse GS Spyder, my car goes into gear fine and shifts great but when I start putting stress on my transmission the RPMs start to climb and acceleratioin doesn't match like the clutch is slipping. This seems to be an engagment issue i think but what im needing to know is would it be an actual worn clutch issue or would it be the slave cylinder.

 

[bradselph]

Sorry I'm late.

AnotherDSMchickinJacksonville!!

Hit me up if you ever need any help

I nudged her your way in page 1 guess she never found ya

 

[DSM Chase]

Op, any updates? ��

 

[GSXgirl78]

I have been busy with work and getting the kiddos back in school. Still waiting to get the flywheel. I have to order it and just haven't had a chance. Going to do the clutch adjustment today.

Sorry I'm late.

AnotherDSMchickinJacksonville!!

Hit me up if you ever need any help

What's up great to know there is another dsm lady here in my town. We often he'd to Sonic on Saturday night...so maybe we will g et to meet face to face

 

[GSXgirl78]

So i just found out that the mechanic did adjust my clutch petals all the way up cause im short and he thought it would be easier for me to drive. What is the correct position for the clutch petal ? My boyfriend adjusted and drove it for about 45 minutes with no problem but want to be sure the pedal is adjusted to the right spot before we test drive it more .

 

[dsm94]

I would adjust it to where it is user friendly with your height, and you can easily engage and disengage your clutch