Quote:
Originally Posted by Diverse4runner
When my HG started to go thats exactly what it did. Overnight or when it got worse I would leave it for half a day and the coolant would leak on the piston. Then when I started it white smoke could be seen. This was in summer in Florida.
Black smoke is because the engine is cold and its bypassing the O2 sensor so it will run rich on start-up.
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Yikes, this is what he didn't want to hear.