Question about 1998 Pontiac Bonneville
A common issue on the series II 3.8 is the upper intake leaking coolant into the cylinders filling them with coolant.What occurs is the engine hydrolocking.The starter will engage but the motor will not turn over. If doing work yourself remove all the spark plugs first and crank the engine over if the engine is hydrolocked all the coolant will blow out of the cylinders .If the motor now turns over then the upper intake needs replaced as well as the spark plugs and oil.
Posted on Jun 03, 2010
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Posted on Jan 02, 2017
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