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could be your intake manafold gasket is leaking .if the truck run ok after it warm up then it's a good chance it the intake gasket ,otherwise you may need a tune up
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∙ 14y ago
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What is the problem with your car Mazda premacy 1999 when it it is in idle the rpm goes below 1000rpm and the needle is irratic?
Could be a vacuum leak.
Where would you find the idle control valve on a 1993 Honda Accord?
its the valve on the right side. mounted on the intake manifold. if u remove it and clean it realy good, you can re-use it and it will fix the irratic high/low idle.
Why won't 1999 Mazda B2500 idle correctly when started cold?
your truck wont idle correctly when its cold, because its cold...and nothing runs correctly when it's cold. your truck wont idle correctly when its cold, because its cold...and nothing runs correctly when it's cold.
Does throttle position sensor have anything to do with high idle when engine is cold?
yes hot or cold it affects idle speed
What control the cold idle speed on a 1992 mercury grand marquis?
the cold idle is controlled by the PCM ( power train control module) the computer of the car and idle is not adjustable.
1988 Buick Riviera cold idle adjustment?
choke idle adjustment on 1988 Buick Riviera
What causes a 2004 Cadillac DeVille to idle roughly when cold started?
Almost all GM products idle rough when its cold but, if it continues it may be the tps swich.
Why is idle rough on cold engine in 2007 ford focus?
throttle body or idle air control value
What causes a fast then slow alternating idle when cold?
brendalee
What isidol speed fora 4clyinderengine?
Im guessing your asking @ what RPM is the 4 cylinder engine supposed to idel at. Well, theres usually two idle settings. A cold idle and a warm idle. You didint mention for what engine, and that's important because every engine has its own correct idle but to give ya a rough idea, the cold idle is usually 950-1000 RPM and warm idle is usually 850-900 RPM!
How to you fix erratic cold idle on 95 civic 1.6 vtec that quits after 5 to 10 min of warm-up?
If there is an erratic cold idle the car could be experiencing a vacuum leak. Check all the air hoses on the vehicle and replace what is worn. Improper air pressure will lead to an unstable idle.
What is cold start idle speed of 1995 jeep grand Cherokee?
900-1200
