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The power brake vacuum booster is probably failing.
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∙ 10y ago
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Why is idle rough on cold engine in 2007 ford focus?
throttle body or idle air control value
How does your car act with a bad spark plug wire?
Bucks- lack of power- rough idle
96 Chevy s10 4cylinder running at high idle and will not kick down?
If this happened all at once, check the vacuum lines. A cracked or broken line will cause high or rough idle.
Where is the MAP sensor on a 1999 Nissan Altima and could this sensor cause a rough idle if bad?
YES it does. It should be close to intake.
What is the cause of very rough idle on a 240SX with new plugs wires cap and rotor?
I HAD SIMULAR PROBLEM AND FOUND THAT THE TPS($60) WAS CAUSING THE IDLE PROBLEM.LOCATED NEAR THE THRATTLE MOUTH.ALSO CHANGE THE IDLE SENSOR($125).MECHANIC SHOULD CHECK THE COMPUTER IN YOUR CAR TO BE 100% SURE.THIS WAS MY CARS PROBLEM ONLY .
Why does 95 Buick Park Avenue idle rough when brakes are applied?
Power brakes use engine vacuum to get their power. If the engine is out of tune, the loss of vacuum will cause it to run rough. Try changing the spark plugs.
What causes a 1992 Saturn SL with a manual transmission to stall when you hold the brakes?
I would say a vacumn leak. Check hoses, measure vacumn with running at idle and at idle when brakes applied. This assumes you have power brakes and it idles well without the brakes applied. Please make sure that the clutch is working properly... Does your clutch work properly?
Why does your 1986 Oldsmobile Calais stalls when brakes are applied?
engine idleing to slow turn up your idle to 1500 rpm at idle drive safe
How do you know when a power booster is bad?
Generally the brake pedal gets harder to push when braking. You may also hear a vacuum leak when the brakes are applied. And sometimes the will engine idle rough when stopped and holding the brake pedal.
Why does your 1991 grand prix stall when the brakes are applied?
It is impossible to give error free diagnosis online but your power brake booster or check valve could be defective It is impossible to give error free diagnosis online but your power brake booster or check valve could be defective. This will casce engine vaccuum to drop when brakes are applied causing the engine to run lean. This causes rough idle and stalling. Car should run ok until brake are applied
How to fix a rough idle Nissan?
why does my vr commodore idle rough when at complete stop
Why does your 2001 Kia Sportage idle rough?
Why does my 2001 kia sportage idle rough?
Rough idle smell of gas ford windstar?
rough idle smell gas
Why does your idle fluctuate when you apply brakes?
Your car may fluctuate in idle while applying the brakes due to a problem in the computer. Everything in cars nowadays is regulated by the ECM(Electronic Control Module). A few simple diagnostics tests done by a certified tech can tell you what exactly the problem is. You may also have a bad power brake vacuum booster, this would effect the engine idle when the brakes are applied.
How do you fix a rough idle in a 94 Ford Tempo 2.3l engine automatic in gear break applied?
Check for broken motor mounts.
If you just installed a new carburetor why would a car stall when you slam on the brakes?
a couple of things. 1: does it drive good doesnt stumble when driving if not the carby might be flooding..... 2: if it runs great and only dies when the brakes are applied, does it idle rough then die, it might be the brake booster. maybe your tcc solenoid, which is in the transmission. my 84 montecarlo did that with a new carb
What make the car to idle rough you changed the plugs?
When the idle goes rough, you must idle the plugs. Else the car plugs roughly.
