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What causes high idle and then rough high idle when heater is turned on?
Vacuum leek
What causes a truck to idle high when started?
the choke is on
What causes surging idle in a 1990 Toyota truck?
Separation of the ethanol due to water in the gasoline.
What causes a Pontiac grand am to idle high?
did you find a solution yet
What causes high engine idle and surges in the 1989 Corvette?
The cause of high engine idle and surges in the 1989 Corvette is due to..Read More
Why 1991 Chevy silverado idles for a while then jumps to high idle?
I have 91 chevy k1500, It does this, Sometimes it will idle a few minutes, then jump to high idle and check engine light comes on, And sometimes its as soon as i start the engine... I was told it was a vacum leak, But im no mechanic
Engine problems 1990 Toyota Celica look at the discussion?
My 1990 Toyota Celica Idle is too high... What seems to be the problem?
What causes high idle in 1999 Toyota Tacoma when I put the defroster on?
a/c kicks on
1997 Cadillac eldorado is idling to high what causes this?
Either your fuel is burning too rich or you have an idle censor out. new idle censor's are not expensive
What causes a 1998 Chevrolet 305 engine to idle high?
Check throttle positioning sensor.
Why does my Pontiac 6000 have a high idle?
A sticking choke or vacuum leak are two common causes.
What causes high idle?
Could be several reasons but a vacuum leak would be most likely.
