i just put on new brakes, and bleeded em, and the rear dont do anything, i think they wernt working when i got the car, how can i fix this, wuts wrong?

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Trent
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89 Firebird
305 v8
automatic
ttops

 

discs or drum? If they are discs this is a common prob. Drums whole dif story....

 

I had this problem on my Monte Carlo SS a while back. The only time that I really noticed was in the snow - I could put my foot on the brake, put the car in drive, and have the rears tires turn with the fronts locked down. It turned out to be the proportioning valve - this valve regulates the proportion of hydraulic pressure going to the front and rear brakes when you push the pedal. When my valve malfunctioned, it only allowed pressure to go to the front brakes.

Hope this helps.

 

My car does the same thing (84 firebird S/E, rear discs). I was told by a local shop that I need new calipers so I have new ones coming and new rotors too. But you're saying it could be my proportioning valve? Where is this located?

Chris

 

i have drums

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Trent
-----
89 Firebird
305 v8
automatic
ttops

 

Chris, the prop valve's under the master cylinder. 82-88 rear discs had a design problem- and a GM recall! The recall was only valid for rear disc cars with a manual transmission. If you have an automatic, you can't get them fixed for free- but you can buy the "updated" caliper rebuild kits from GM.

Check out Dan's page (ws6transam) for info on the recall. The info's at the bottom of the page, below the 1LE stuff. The link is: http://www.isthq.com/~dan/1LEbrake.html I've gotta rebuild my rear discs, too.



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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

How do these recall things work?
I have an '84 5 speed and have this same problem...
Am I out of luck for a free fix?
Either way its no big deal.

 

My problem too, how hard is it to change the valve,thats probably why my rear disk make a rattling noise or maybe just bad calipers

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1986 TPI 305 TRANS AM

 

Camaroman, no, you can get the free fix- unless of course it was done already to your car. Visit http://www.alldata.com to look up the recall info, and then just call your GM dealer. He'll put in the VIN code, see if it's been done yet (and it probably hasn't), then schedule you for the work. If he acts like a pain in the butt, call another dealership.


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

Bulletins for 1984 Pontiac Firebird V8-305 5.0L

Safety Recalls
TSB Number Issue Date TSB Title 90C03A FEB 91 Campaign 90-C-03A Seat Belt Buckles Defective
85C08A JUL 86 Product Safety Campaign 85-C-08A Front Seat Belt Shoulder Belt
85C04 FEB 85 Hi-Tech Turbo Wheel (N96) Fractures In Hub Area
84C05 SEP 84 Product Campaign 84-C-05 Rear Brake Center Flex Hose May Fail



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Trent
-----
89 Firebird
305 v8
automatic
ttops

 

The service bulletin info means that I will still have to pay for it. I called the guy at the dealership and he said that there is no open campaign on them. I guess I'll have to pay for it then

Chris

 

hes not talking about the service bullitins, hes talking bout the recalls, theres a bunch for your car(im guessing its a 305)
the ones i just posed and these that i missed

Emissions Recalls
TSB Number Issue Date TSB Title 84C14 OCT 88 Campaign: Evaporative Canister Purge TVS
85C10A MAY 87 Engine Misfire, Hesitation, Sags Or No Re-start.

General Recalls
TSB Number Issue Date TSB Title 86SM19 AUG 86 Engine Surge After Hot Soak


they should fix them free,

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Trent
-----
89 Firebird
305 v8
automatic
ttops