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MY CAR IS IDLING UP AND DOWN

(1990 Acura Legend)
in Richland, GA on May 03, 2011
MY CAR WILL RUN, BUT IT'S KEEPS ON IDLE UP AND DOWN I DON'T KNOW WHAT CAN CAUSE THE PROBLEM CAN YOU HELP ME WITH IT.
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Popular Answer
As Zee said vacuum leaks are most likely the cause but low coolant level or bad coolant temperature switch also causes this surging idle.
on May 03, 2011
Sounds like there is a vacuum leak somewhere at the intake manifold.
Check all the vacuum hoses, make sure they are not disconnected or broken.

Zee
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