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Race Director
Joined: Mar 2007
Posts: 11,331
Likes: 18
From: Missouri City Texas
I would drive your car promptly to a dealership.
Scratch that, maybe you shouldn't drive promptly anywhere, lol....but seriously, check your brake fluid level and then take it in before it gets worse.
Scratch that, maybe you shouldn't drive promptly anywhere, lol....but seriously, check your brake fluid level and then take it in before it gets worse.
Le Mans Master
Joined: Jul 2005
Posts: 5,328
Likes: 405
1) Vacuum drops when you accelerate.
2) Your power brakes use engine vacuum to provide the assist.
3) There's a check valve at the power brake booster that prevents a loss of vacuum when you accelerate. (It also allows about three pumps of the brake pedal after the engine has been shut off so you can safely bring the car to a stop if the engine quits.)
I think you can see where this is leading to...I would suspect the check valve has failed. If not, the power brake booster would be my next guess but that would have to be a large leak and I would think your engine wouldn't idle too well with all of that air bypassing the MAF.
I'm assuming a stock engine as in no cam change.
2) Your power brakes use engine vacuum to provide the assist.
3) There's a check valve at the power brake booster that prevents a loss of vacuum when you accelerate. (It also allows about three pumps of the brake pedal after the engine has been shut off so you can safely bring the car to a stop if the engine quits.)
I think you can see where this is leading to...I would suspect the check valve has failed. If not, the power brake booster would be my next guess but that would have to be a large leak and I would think your engine wouldn't idle too well with all of that air bypassing the MAF.
I'm assuming a stock engine as in no cam change.
Burning Brakes
Joined: Jun 2007
Posts: 1,049
Likes: 1
From: Yucaipa California
