Question about 1987 Ford F 250

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Idles at around 3000 rpms and doesnt come down it just started doing it, dont know what to do?

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Have your idle valve check it could be stuck or some vacuum leaks on your intake manifold as more air intake than what is necessary at idle state

Posted on Jan 31, 2010

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2003 GMC Envoy V6 - will not rev over 3000 rpms. Idle also varies 300-400 rpms. What's wrong??


Unplug 02 sensor and rap it up so bang around then take it for drive

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Idles around 4000 rpms when started and wont idle normal


Change the egr valve i just did it on my 1995 and it idles at 1000 rpm it was at 3000 at 1st
And clean out throttle body
If that doesnt work u most likely have a stuck throttle which usual doesnt happen

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Have a 96 camaro 3.8 V6 engine that on start up revs up over 3000 rpms and doesn't rev back down already replaced throttle body sensor any suggestion?


Did you check for vacuum leaks? Get a can of some flammable brake cleaner and start spraying it near all of the vacuum lines and see if it idles down. Also spray it around the intake when you hit the right spot it should idle down. Then you know where your problem is.

Dec 31, 2010 | 1996 Chevrolet Camaro

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Start car and the idle goes to 3000 rpm, holds there for around 12 seconds or so and then comes down to around 1200. when driving if stopped and you put the car in park or nuetral the idle will go up to...


it sounds like a vacuum leak to me, my car had the same problem but when i changed the hose that connected the valve cover to the fuel injectors the rpms dropped back down to about 800 rpms

Sep 17, 2010 | 1999 Saturn SL

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Integra revs RPMs when idling


idle air control motor or just a plain old vacuum leak

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With clutch pushed-in, RPMs start to go up to around 2000-2500


if it isnt the iac probably the pcv valve positive crankcase vent. it is on a vacuum line somewere under hood. or check the air cleaner, the hose with the small filter underneath the air filter. i take its fuel injected?

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1 Answer

1994 Geo Tracker 4x4 Automatic


it is probably out of water as mine did that and the radiator was dry. due to a bad water pump.

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Idle control


tps (throttle position sensor) controls the idle and the ideal idle is around 700-850

Oct 01, 2008 | 1987 Nissan Pickup

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