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most vacuum leaks are in hoses that are disconnected or have holes in them you can also take a bottle of water and spray it along the side of the intake and base of the carborater if the motor bogs or you here it suck the water in you have found you leak but it can be a leak under the intake and that is a bigger problem to find buy a can of starting fluid and spray it near the gasket and vacuum hoses and if the engine increases its rpm that is where the leak is
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What causes engine to race and then stall?
The year, make, model and engine info would help but a serious vacuum leak could do that.
What causes the engine to race when first starting the car for a 2003 ION.?
1) normal operation when cold or 2) vacuum leak cause by shrunken gasket
What would make the service engine light stay on and the engine race in your 1994 Pontiac Grand Am The engine is a 4 cylinder quad 2.4L?
A bad IAC (idle air control)or vacuum leak. Check for bad vacuum hoses first, the IAC is around $50
Why does the idle race on your 87 350 tbi?
vacuum leak or fuel pump Randy
What causes an engine to race when started and then run rough and die often backfiring through the intake?
The year, make and model info would be helpful but a large vacuum leak could do that.
Why does your diesel engine race by its self?
usually there is a fuel leak internally however it can also be an air leak
What causes my 1985 Toyota sr5 22r engine to race up and down at a idle?
The racing up and down at idle is call enging loping, usually caused by a vacuum leak. It could also be caused by a sticking choke at the carb. Whatever the case may be, you will need to start by hooking up a smoke machine to find the source of the leak. Also check your coolant level. my 1991 Toyota 4x4 22re had the same race up and down idle. it was a low coolant level.
What would cause your 1995 Chevy s10 to idle at 3000 RPM when you start it?
vacuum leak. my 95 Monte Carlo did it. once in a while it would race to 2500 rpm then settle down like normal. not easy to find , but a cheap fix.
Why does your car engine race when you step on the brake?
Actually, there might be some kind of vacuum leak or bad vacuum connection somewhere. When you step on the brake, the power brake booster under the hood draws vacuum from the engine ... so it could be related to that. Check all your vacuum hoses and connectors for leaks, cracks or loose fittings. A quick and dirty fix for hoses with small cracks is to wrap some electrical tape around the cracked area. Such fixes are NOT RECOMMENDED BY EXPERTS, of course, but if they work for a day or two, they're likely to work for years.
What causes car engine to race then slow down repeatedly at start up?
That is normally caused by an air leak in the induction system.
What cause a Honda civic d16a engine to race?
90% of the time it is a vacum leak check all ur hoses goin to the intake also check the idle air control valve on the back of the intake
What is a 5 letter word for race car engine?
A five letter word for a race car engine is a motor.
