I have a 1988 chevy s10 with extreme air in the master cylinder
Asked by bronsonm Feb 10, 2016 at 11:05 AM about the 1988 Chevrolet S-10 STD Standard Cab SB
Question type: General
I have replaced the master cylinder and a front brake line. I have bled all wheel lines, do not see any evidence of any leaks anywhere yet my master cylinder shows creamy brake fluid (air) with a very mushy brake peddle. Please help
Manuel
6 Answers
Rowefast answered 2 years ago
Did you bench bleed the master cylinder before putting it on? A new master cylinder needs to be bench bled first.
bronsonm answered 2 years ago
I might add that in bench bleeding the master cylinder, I was able to get all air out. in thinking that I might have a bad MC I removed it from the vehicle and manually bled it again with success. Put back in the truck and same thing air in the MC.Im thinking maybe a bad proportioning value.
Rowefast answered 2 years ago
Not for spongy breaks. If there is ABS system on there, the ABS may need to be hooked up to a computer/ scanner to run a program to bleed that out. You just can't do it like normal by opening the bleeder valves.
Andrew answered 2 years ago
An 88 won't have abs. Nor should they be hard to bleed. I've bleed several trucks of that generation. 2 things, I have never seen creamy brake fluid unless it was contaminated, maybe i just havent seen one bad enough. Second tighten everything up and pump the shit out of the brakes then check the wheel cylinders and caliper for any moisture. And see which reservoir is getting low. Also I've wanted to place proportioning valve before and all of them were never bad. Idk if I've seen a bad one. Replaced more due to bad threads than actually bad
Rowefast answered 2 years ago
Andrew brought up a good point. Kinda over looked what you said here. Yes do what Andrew says about checking the wheel cylinders, check for leaks, But now I'm thinking that the break fluid is so contaminated that you cannot get a solid pedal. I would make sure all the break fluid has ben flushed out with new fluid.
Your Answer
Related Questions
-
I have a 1988 chevy s10 with extreme air in the master cylinder 6 answers
I have replaced the master cylinder and a front brake line. I have bled all wheel lines, do not see any evidence of any leaks anywhere yet my master cylinder shows creamy brake fluid (air) with a very...
1988 Chevrolet S-10 STD Standard Cab SB
-
General
-
I have a 2000 Chevy s10 with the 2200 sfi 5 answers
I have a 2000 Chevy s10 2200 sfi I need to know when you turn the key to power arebtye injectors support to spray into the motor or just pressure the fuel line my third injector back sprays alot of ...
2000 Chevrolet S-10
-
General
-
Does a 2004 Chevy S10 have a 2.2 engine? 7 answers
I have a 2004 Chevy S10.I was looking for parts that fit my truck & asked what size engine it is.I told the parts employee that it is a 4 cylinder engine,2.2.He asked,"Are you sure that's the right ye...
2004 Chevrolet S-10
-
General
-
have a 2003 chevy s10 4 door zr5 and i have no brake lights in rear of truck 5 answers
the cab brake light works but no rear brake lights,i have check fuses,those are all good,i have checked parking,blinker and hazerd lights they all work and even changed the stop switch behind the br...
2003 Chevrolet S-10 4 Dr LS 4WD Crew Cab SB
-
General
-
03 chevy extreme 2 answers
I have a 03 s10 extreme with a 4.3 wanna put a 4.8 could it work..
2003 Chevrolet S-10 3 Dr LS Extended Cab SB
-
General

Looking for a Used S-10 in your area?
CarGurus has 957 nationwide S-10 listings starting at $950.
Shortcuts
Search Chevrolet S-10 Questions
Chevrolet S-10 Experts
-
#1Andrew OlsenReputation2,770
-
#2John SaffrahnReputation1,100
-
#3Trebor66Reputation1,080
Related Models For Sale
Used Cars For Sale
Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.