[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
Re: Brakes "sticking" '89 200 2wd
Shawn Kolu wrote:
> I have checked the archives but can't seem to find any helpful references
> related to this problem.
> I have a 89 200 2wd. Sometimes in the middle of a freeway drive, my car
> will "bog down". It feels like I am driving against a very strong
> headwind. When I get home the front wheels are very hot, and I have
> noticed over time a higher concentration of brake dust than was normal.
> It sure seems that the front brake pads are applying pressure without any
> brake pedal pressure; would this be called "unintended deceleration" : )
> I can pump the brake or press hard on the brake, without any noticeable
> improvement. It seems to resolve on its' own in a random fashion. My
> questions: where should I start, calipers, master cylinder, brake servo,
> line bleeding, pressure accumulator, or the "bomb".
> Have you ever heard of this type of problem? Any help would be greatly
> appreciated. Post or Email
> Shawn Kolu
> 89' 200 Turbo
Yes I have heard of this problem and every time it was the master
cylinder.To tset remove m-cyl from booster two 13mm bolts and try to
turn the aluminum piston sticking out the back of the m-cyl DO NOT USE
TOOLS. Use your fingers only use of pliers will scratch surface and will
damage m-cyl.The piston should be able to turn with your fingers if it
is tight it probably needs replaced.
This condition as you describe it "car bogging down intermittently on a
warm day" is kind of a problem on 5k's and 100's/200's.