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I have a 89 and the brake pedal seems fine on a normal stop, but if you want to stop in a hurry you have to push very hard on the pedal.I have done new pads and had the rotors turned and have bleed the brakes numerous times.With the car sitting still the pedal feels fine.What else could be the problem?
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
I think it might be the brake booster. The diaphram may be leaking past when you hit the pedal quick. This was the case in my last car, and it worked fine under normal braking.
The C4 brakes are more than enough for spirited driving. I really had to abuse the crap out of mine to make em fail.
Yea they seem fine under normal operation but if you try to stop realy quick you almost have to use both feet. where is the best place to get new brake booster?
i agree, sounds like booster. an easy check is to press the pedle hard, then start the car. if the pedal moves down a bit more then it's working if not it needs replacing
I think it might be the brake booster. The diaphram may be leaking past when you hit the pedal quick. This was the case in my last car, and it worked fine under normal braking.
The C4 brakes are more than enough for spirited driving. I really had to abuse the crap out of mine to make em fail.
I agree with CentralCoaster I had the same issue's with my 86 coupe & replacing the brake booster solved it.
I have a 89 and the brake pedal seems fine on a normal stop, but if you want to stop in a hurry you have to push very hard on the pedal.I have done new pads and had the rotors turned and have bleed the brakes numerous times.With the car sitting still the pedal feels fine.What else could be the problem?
I did what you did with the addition of a complete FLUSH of all the brake fluid and added speed bleeders. What an incredible difference.
From: Looks like I picked the wrong week to stop sniffin glue Orlando
Originally Posted by BOTY79
What all is involed in changing them over?
It’s a pretty simple swap actually. You’ll just need the basic components like rotors, calipers, and brake pads and then the adaptors that let you mount the C5 calipers to the C4 spindle.
My system was in perfect shape before the conversion and I didn’t like the stopping power of the original brakes, all I did was change to the C5 brakes and a proportioning valve spring and it made a world of difference.
Now the car stops the way I think it should stop.
Mid America Motorworks sells the tin booster part #618-141 and sells for $169.99 they also sell the plastic one for $299.99 Pick your poison. www.mamotorworks.com
Yea they seem fine under normal operation but if you try to stop realy quick you almost have to use both feet. where is the best place to get new brake booster?
Check out the prices at www.hotrodsusa.com. Another Vette forum mentioned it and I just bought a new, metal, satisfaction guaranteed booster delivered for 127.xx ( be sure and check out their coupon on the site). Local GM dealer wanted 404.xx and offered it for 299.xx due to my GM employment. Another forum suggests removing the bottom seat cushion prior to starting to simplify access. Just be cautious as the wiring is hot even with the key off (I am told). Good luck