About Mark Bisig Expertise I have been working on Chevrolets since 1979 and do all minor and major repair of these vehicles. I work at a large Chevrolet dealer. I can answer questions on engines, transmissions, drive-line, A/C, PCM, drivability. I will do my best to answer and get back to you fast.
Experience 26 years working at a car dealer
Education/Credentials Denver Automotive and diesel college
Question My 2001 2500HD clutch suddenly lost pressure.It never had previous problems. I decided to pump it and it came back it lost pressure after about 10min. I checked fluid level and seems to be a little low. any suggestions?
Answer Hi Paul, This could be either the clutch master cylinder or the slave cylinder. The first thing to is to look for leaks at both. If one is leaking then replace it and see if that cures the problem. The master cylinder is easy to replace unlike the slave which you need to pull the transmission.
