Question about 1994 Saab 900
Once warm, the engine surges constantly back and forth between 2000 and 2500 rpm. Happened once before and seemed to be coolant level related. Adding coolant seemed to fix. A year later happening again. Coolant level is fine.
I would remove the coolant sensors and clean then to obtain the correct reading.
Posted on Jul 21, 2009
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Posted on Jan 02, 2017
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