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Master
1,565 Answers
- Posted on Nov 07, 2010
Re: My 2009 H2 is idling rough for 2-5 min with a cool...
My guess would be a leaking intake or head gasket. Water in the cylinder(s) is shorting the spark plug until the temp comes up on the engine. The white smoke is the coolant being burnt off. check your coolant level it may be low.
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