Question about 1988 Ford F 150

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Smoke is coming out of my vents - 1988 Ford F 150

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You have a leaking heater core. Leaking antifreeze into the heater case. Soon you will have a puddle on the passengers side floor.

Posted on Feb 27, 2010

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You need to do coolant pressure tets,put 15 psi pressure in the coolant system, check you heater core fo any leak (replace the heater core)

Posted on Feb 27, 2010

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If the smoke is hazy and smells like coolant, your heater core is leaking. if it smells like a foul oder of plastic, disconnect tha battery before the vehicle catches on fire

Posted on Feb 27, 2010

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1 Answer

White smoke is coming out of my vents

White smoke is usually indicative of a blown head gasket. Usually if you have blue smoke it's oil......If you have white smoke and possibly a "sweet" smell to it, that's normally coolant.
If it's coming out of your vents then I'd say you need new gaskets now. What's happened is the gasket blew out so bad that the smoke made it's way through the vent system, it's also coming from under your hood I bet giving my past experience with this.
Definitely new head gaskets to fix this though.

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