brakes lock up while driving (83, 5spd)
#1
brakes lock up while driving (83, 5spd)
Lately I have been driving and the brake peddle becomes super hard as if i have been pumping it and the brakes lock up. I don't come to a screeching halt, it just makes the car rumble in the front and hard to drive. If i stop at a light and start again, it feels like i am smashing on the brake every time i shift. I am certain that there is something funny happening.
the weird things are:
i did just replace my carburetor before this started happening. not that it is related, but that is the only thing that i have done.
i just took my truck to a shop today. they said the pads are fine, but the fluid was orange and rusty. they flushed the fluid out of the entire system. i drove it fine for about 30 miles and then the brakes locked up again. ???
the weird things are:
- if i park the truck when the brakes are locked for about 1-2 hours. the brakes return to normal. i dont do anything but let it sit.
- while i am driving. i don't have to ever hit the brake peddle and the brakes will lock up. i mean. i can not once touch the brake peddle and it will lock up. ??
i did just replace my carburetor before this started happening. not that it is related, but that is the only thing that i have done.
i just took my truck to a shop today. they said the pads are fine, but the fluid was orange and rusty. they flushed the fluid out of the entire system. i drove it fine for about 30 miles and then the brakes locked up again. ???
Last edited by jackieonassis; 03-06-2009 at 11:46 AM.
#4
if there was a petrolium product put in there before then the rubber in your system would be deteriorated and could swell and the pressure exerted would apply your brakes(this happened to me when i got the bottles without labels mixed up and put power steering fluiod in my master cylender..... i had to replace my master cylender and rubber lines to fix it)
Last edited by rock slayer; 03-06-2009 at 12:11 PM.
#7
maybe next time it happens loosen the brake line where it connects to the master cylender then tighten it back up (this should relive pressure to release your brakes) if this works your brake lines probably are not blocked
my buddy did the same thing that i did (power steering fluid) and just replaced his master cylender and that worked for him(didn't need to replace lines)
i replaced everything because i had it on hand... you might just need a new master cylender its wayy easyer than replacing brake lines
my buddy did the same thing that i did (power steering fluid) and just replaced his master cylender and that worked for him(didn't need to replace lines)
i replaced everything because i had it on hand... you might just need a new master cylender its wayy easyer than replacing brake lines
Last edited by rock slayer; 03-06-2009 at 12:05 PM.
Trending Topics
#12
Might also check your brake booster. It uses engine vacuum to make the brakes work easier and something there may have been messed up when you swapped the carb. since you indicated that was a recent repair before the brake problem occurred.
#14
yea mine are doing the same thing on my 86 4unner!!! it sucks it started happening a couple months ago i rebuilt the calipers and bled the system, and the master cylinder is about 2 years old... and they still lock up while driving
could it be the proportioning valve???
or the booster???
could it be the proportioning valve???
or the booster???
#15
yea mine are doing the same thing on my 86 4unner!!! it sucks it started happening a couple months ago i rebuilt the calipers and bled the system, and the master cylinder is about 2 years old... and they still lock up while driving
could it be the proportioning valve???
or the booster???
could it be the proportioning valve???
or the booster???
Thread
Thread Starter
Forum
Replies
Last Post
RedRunner_87
95.5-2004 Tacomas & 96-2002 4Runners (Build-Up Section)
84
06-01-2021 01:51 PM
GreatLakesGuy
The Classifieds GraveYard
8
09-04-2015 09:27 AM
Johntom240
General Electrical & Lighting Related Topics
7
07-13-2015 12:18 AM
Jnkml
95.5-2004 Tacomas & 96-2002 4Runners
3
07-06-2015 01:20 PM