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Idle Air Control 850

posted by  B.B. on  Fri Sep 3 02:27 CST 2010
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Oct 6 13:15 CST 2014
[RELATED]

The engine RPM was too high (intermittant).
I yanked the IAC valve and cleaned it with Brake cleaner
some nasty manure colored stuff washed out.
The engine RPMs went down from their high levels,
The engine is running rough at idle. (New ignition parts on the way)
Suddenly the brakes acted up indicating a vacuum crap out.
How do you diagnose a faulty IAC, can it screw up engine vacuum?

Thanks, Bill





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