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2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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Old 01-19-2014
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Join Date: Jan 2014
Location: Howell, MI
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3.0l flex

have white smoke coming out tail pipe. losing coolant. starting to replace head gaskets, removed throttle body and found coolant in throttle body . could the throttle body be bad ?? or way is there coolant in the throttle body
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Old 01-19-2014
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Throttle body or lower intake manifold?

The intake manifold does have coolant passages to pass coolant from one head to the other, and yes it can leak coolant into air passages which would be sucked into engine.

How did you test for blown head gasket?
Usually first sign is overflow tank full to the top and over heating.
Cylinder pressure(600+PSI) is pushed into cooling system(18PSI) where head gasket has failed, this over pressurizes rad cap(18PSI) and it sends coolant out to overflow tank, once enough coolant has been sent out engine overheats.
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