Power Brake Booster
#1
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Join Date: Sep 2003
Location: Tyler, TX
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Power Brake Booster
The brake booster on my 88 4Runner is whistling at me everytime I stop, so I assume it has a hole in the diaphram. Does anyone have a suggestion/opinion on what I should replace it with? Is there a good aftermarket piece that someone could recommend? How about whatever Pep Boys might carry? Or is the best, and probably most expensive solution, to buy a new one from the local stealership? Any suggestions are greatly appreciated.
Nak
Nak
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Those things usually last the lifetime of the car. Is it possible you have a hose leak rather than a hole in the diaphram? My personal opinion is pick one up from the junkyard. They are usually in fairly well condition.
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I've always thought they were good for the life of a vehicle also. I don't know of any hose or anything else associated with the brakes that would cause this whistle. It only whistles at a certain pressure (about 1/4 till 3/4 of the pedal depressed), I had someone push the pedal while I listened, and it certainly seems to be coming from the booster.
Thanks
Nak
Thanks
Nak
#4
Contributing Member
1/4 million miles! No wonder its wore out.
It does seem to be the booster. Just get one from a wrecking yard, of ask "Toyota parts dude" if he has one. He is on the members list.
It does seem to be the booster. Just get one from a wrecking yard, of ask "Toyota parts dude" if he has one. He is on the members list.
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