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Could be any number of things, but most (95%) situations are a loose or broken vacuum hose. Try spraying starting fluid in "small" bursts around vacuum hoses, around the valve cover, and the intake. You can pick up a can for under 43.00 at ant parts store. If the engine RPMS climb higher, you found your leak. Be safe as starting fluid is flammable and if you have any random sparks, it might catch fire, most likely it wont, otherwise your would have busrt into flames already.
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What causes your 1991 Plymouth Acclaim to idle rough and lose power?
Could be the TPS, it will cause it to idle high and low and make the car become sluggish, but a vehicle will run without one, but it will run very rough.
What would cause the engine to idle very high and then it stalls out but if you give it some gas you can keep it running but again at a high idle?
Check the alternator.
Why does your car idle very high?
It's usually a vacuum leak.
Water has a high blank which causes it to heat very slowly?
water has a high which causes it to heat very slowly ?
What causes high idle on 91 dodge stealth?
see previous answers, but if it idles high it might be the Mass Airflow Sensor. if your car idles too high for too long and you keep driving it, you could burn out the transmission module (very expensive )
Why does z24 idle very high?
possibly a vacuum leak or ur throttles out of adjustment
What causes a 1981 Chevy 305 to idle very fast and actually push the brakes when you stop?
Check the Idle Air control valve. This lets air bypass the throttle body plate when the car is at idle or low revs.
What would cause an engine to idle and run at a very high rpm?
Flooring the gas petal.
When you start up my 1988 Cherokee Laredo the idle is so high and loud it makes you so upset what do you do?
When I start up my 1988 cherokee laredo the idle is so high and loud it make me get very angry?
What are common causes of very high idle speed on 1994 S-10 Blazer with 4.3 liter central port injection?
Perhaps a stuck throttle plate - try to free with a screw driver The throttle position sensor is also notorious for causing this as well. A vacuum leak can also cause high idle speed, but the vehicle will generally run rough as well.
Why does motor for 1993 buick lesabre have very high idle weather driving or in park?
Type your answer here..
1968 car idle very high when started in park?
Your car will idle high until the engine begins to warm. You could set the idle to be a bit lower, but that may cause the engine to stall out when it's cold out. The engine should begin to lower the RPMs when it is warmed up.
