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Old 07-09-2004, 03:37 AM
shane83SD shane83SD is offline
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Join Date: Sep 2003
Location: S.F. Bayarea
Posts: 196
Check the spark plug. If the insulator is white and/or blistering (normal is light tan), the engine is running lean and hot.

Possibilities:
Air duct leaking from air metering device to the intake manifold.
Leaking intake manifold gasket.
Throttle plate shaft leaking (loose).
etc., etc

Search the archive for leak detection techniques.
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