ok so i just went through 36 pages of threads and i found nothing like the issues I am having....
I bought a 93 Volvo 850GLT for 500 bucks off my uncle. Car had broken the timing belt and bent 18 valves. Put a new belt/head on the car and did the usual tune up stuff. I bought the car 2 years ago and have been tinkering with it here and there. I have finally registered it and started driving it as it is starting to snow up in my neck of the woods. Here are my problems that im running into.

Major issue: Clutch grabbed pretty low off the floor and slowly kept getting lower and lower. Now i start the car with the clutch to the floor and it will just roll forward. I cannot shift the car in or out of gear with the car running. I assumed the throwout bearing was junk (slave cyl has full range of motion) but now the clutch pedal needs to be pulled off the floor. I cannot bleed the slave cyl because it will break off. Thoughts and opinions?

Second issue:Under full throttle the car has a slight skip to it. kind of feels like the clutch could be slipping but only in quick spurts....Also randomly the car will buck real hard, as if i got bumped at a stop light, but only while driving. Service light (not CEL) flashes for a split second when this happens. Its only at random and in no certain senario.

Any help would be greatful...thanks again

 

resolve the clutch first... you are leaking fluid somewhere, find it...fix it. If the clutch needs replacing do it. There are shortcut fixes to a lot of stuff but not that ...you know if you are leaking fluid, did you double check to make sure the fluid is full? As for the full throttle, make sure you have no vac leak, sounds like it coluld be a minor leak, if you get to full throttle...you know about that I am not sure, I'd just make sure all the incidental stuff, plugs, wires, filters etc...are all perfect... GL

 

car is not leaking a drop of anything. i think the throwout bearing is just totally junk, and the pressure plate has an issue. and that is why the pedal will no come off the floor.

 

graff...did you try to pump the pedal? if there is fluid in it...then you should build up some kind of pressure...if not then you have another issue...GL

 

there has to be plenty of pressure because i am fully extending the slave cylinder.

 

Maybe the clutch disk blew apart.
Usually if it will not come off the floor it is due to low pressure.(leak/air in the system)

Did you put in OEM tune up parts?

 

I'm not sure where you are geographically (It is cold everywhere in the US but some places are colder than others). I had an issue with one of my 740s where the brake fluid got contaminated and froze in cold weather.The behavior, as I recall, was much as you describe except that I really had to mash the clutch hard to get it to work in the first place. A brake fluid flush might go a long way and it can't hurt anything.

...Lee

 

It might also be that the clutch master cylinder seals are bad and it is bypassing. It would still give you motion at the slave cylinder after pressure built up, but the pedal would stay on the floor. My suggestion is to bleed and flush the clutch system if you can. Like Tech said, you are getting air into the system somehow

 

I live in new england....mass to be exact. Its about 25 out here during the day and colder at night. I parked twice last night on a hill (nose higher than trunk) and when i jumped in everything worked fine like normal. But once i started driving it all went back to crap. Tune up parts are OEM. i just recently did the brakes and flushed the whole system. Minus the slave. all new fluid and the res is clean. i would bleed the slave but the bleeder feels like its read to break and i dont want that to happen because i dont have 100 bucks kicking around to buy a new one just yet. i guess ill try to bleed the slave this week to see how that works. Just trying to rule out possibilites before i decide to pull the trans.