'87 SR5 Turbo Automatic has Really Soft Brakes
#21
Registered User
Idle speed is very important also, if your idle is too high with an automatic tranny it will be trying pretty hard to keep pushing you. The trans doesn't do anything different when you push the brakes, only when you let off the throttle.
You could try shifting to neutral and see how much difference there is in braking.
You could try shifting to neutral and see how much difference there is in braking.
#24
Registered User
good, you have even pad wear. but the pictures don't answer any questions.
Do you have any vacuum leaks?
Are your rear brakes adjusted correctly?
Is the pedal spongy?
What is your engine RPM at Idle?
Do you have any vacuum leaks?
Are your rear brakes adjusted correctly?
Is the pedal spongy?
What is your engine RPM at Idle?
#25
Registered User
Thread Starter
Rear Brakes. The rear passenger felt a bit seized so I lubticated it. Rear drivers felt fine. I don’t know much about drum brakes, so i’m about to look up how to adjust them (e brake cable method?).
i can pull the brake cable and it moves he gear and grabs new teeth each time. Now I just have to learn what that does and when it is adjusted right.
Drivers:
i can pull the brake cable and it moves he gear and grabs new teeth each time. Now I just have to learn what that does and when it is adjusted right.
Drivers:
#27
Registered User
Thread Starter
- Rear brakes are probably not adjusted but I need to read about this more as i’m Clueless on drum brakes
- Pedal is a bit spongy but I haven’t checked to see if air in the lines yet. That is next.
- RPM at Idle in P = 1,000-1,100
- RPM in Gear = (will fill in later since it’s ok jack stands right now)
#29
Registered User
Thread Starter
#31
Registered User
Thread Starter
Rear brakes adjusted. E brake now only comes out 3” or so till tight vs 7-9” before which has to be a good sign.
Working on be idle and bleeding the brakes next.
Working on be idle and bleeding the brakes next.
#32
Registered User
Thread Starter
Idle speed is very important also, if your idle is too high with an automatic tranny it will be trying pretty hard to keep pushing you. The trans doesn't do anything different when you push the brakes, only when you let off the throttle.
You could try shifting to neutral and see how much difference there is in braking.
You could try shifting to neutral and see how much difference there is in braking.
#33
Registered User
Thread Starter
Last edited by Charles4x4; 06-16-2018 at 12:50 PM.
#36
Registered User
I suspect that 90% of your problem is from the idle being too high, the rear brakes out of adjustment and possibly some air in the lines.
But, your rear brakes need to be clean and dry also. if you have a rear axle seal leaking you should be planning to fix it soon. if it is brake fluid you need to fix that now.
no matter how hard you try you can never clean all of the oil out of brake shoes after they have been soaked. more will just leech out when they get hot.
But, your rear brakes need to be clean and dry also. if you have a rear axle seal leaking you should be planning to fix it soon. if it is brake fluid you need to fix that now.
no matter how hard you try you can never clean all of the oil out of brake shoes after they have been soaked. more will just leech out when they get hot.
#37
Registered User
Thread Starter
#38
Registered User
Thread Starter
I suspect that 90% of your problem is from the idle being too high, the rear brakes out of adjustment and possibly some air in the lines.
But, your rear brakes need to be clean and dry also. if you have a rear axle seal leaking you should be planning to fix it soon. if it is brake fluid you need to fix that now.
no matter how hard you try you can never clean all of the oil out of brake shoes after they have been soaked. more will just leech out when they get hot.
But, your rear brakes need to be clean and dry also. if you have a rear axle seal leaking you should be planning to fix it soon. if it is brake fluid you need to fix that now.
no matter how hard you try you can never clean all of the oil out of brake shoes after they have been soaked. more will just leech out when they get hot.
#40
Registered User
The rear passenger side cylinder looks odd compared to the drivers side or my eyes are playing tricks on me. Has it ever been replaced? Looks smaller than the driver side and the pistons are popped thru the seal. Plus the wettness could be possible leaking cylinder or axle seal.
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