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Why does your car shake when your foot is off the brakes?
vacuum leak 65 power brakes run off a vacuum, when you apply your brakes you stop the air leak. 65;
How do you diagnose a very hard pedal when applying the brakes of a vehicle equipped with a hyrdo-booster?
You are taking too much vacuum away from the vacuum booster in the brake system. Try to find a smaller vacuum hose somewhere else in the engine to use for the Hydro Booster. The boost line for the brakes comes from the primary vacuum port on the intake manifold. Use a secondary vacuum source. That vacuum for the brakes needs to be undisturbed for correct operation of the braking system and the ABS if so equipped.
Why does your brakes work with light pressure and not with hard?
You probably have air in the lines or the brake booster is losing vacuum. Have the brakes bleed and have someone put a vacuum gauge on the booster,
What should the vacuum be in lbs at the carburetor on a 350 using vacuum assist brakes and vacuum wiper?
18 to 21 inches at idle
When you hit the brakes on your 1984 Honda accord lx carb it affects the idle speed what could the problem be?
You most likely have an issue with the Vacuum brake booster has an internal leak. Typically you can hear it inside the cabin when you step on the brake pedal. You r vacuum booster uses vacuum to ampify the power of you leg pressing on the brakes and internal vacuum leak casues the engine to lose too much vacuum thus affecting your engines RPM.
Loss of power brakes on 1995 Saturn SC1 DOHC?
"Power Brakes" are actually "vacuum assisted brakes", meaning that a vacuum diaphragm is used to provide additional force against the brake pedal as you attempt to stop your vehicle. If the engine vacuum has decreased, through wear, timing issues or because of a vacuum leak, there will be considerably less of the vacuum assist available when you stop your vehicle. First, check for a vacuum leak, and make certain that you include the vacuum assist module. If there are no vacuum leaks, check the vacuum that the engine is creating; if that's not the problem then you may have a leaking or damaged master cylinder.
What is the diesel vehicle have a vacuum pump?
Because a diesel engine does not create vacuum and the vacuum pump is necessary to operate things like the vacuum assist brakes and cruise control.
Does a 78 Nova have a vacuum brake booster?
Yes if it has power brakes.
What is wrong with a 74 silverado when you hit the gas the brakes lock up?
wow that sounds wierd but i would say that the vacuum hose to the brake booster has way to much vacuum maybe its pulling the diaghram.thats a good one.
Why would you hear air when brakes are pressed?
brakes may need bled but more than likely vacuum booster is bad
For a 95 Ford Windstar the brakes went and the front brakes have been changed with new pads and rotors - Back brakes were adjusted and there are still no brakes - what else to do to fix it?
what you have could be one of three problems. Check your reservoir to see if it has plenty of brake fluid, bleed your brakes,they may of lost the fluid while changing brakes. Also, if you have a vacuum leak it will cause your brakes not to work. Or it could be your master cylinder or your vacuum booster that has went bad. brewski
Why is there a hissing sound coming from under the dash of your 1987 Dakota pickup It increases when the brakes are applied Can anyone help you with this?
Sounds like a vacuum leak - check the hoses to the vacuum actuated motors under dash Could be a bad check valve in the vacuum booster (for brakes)
