Mechanics

MODELS NO HEAT

1992 GMC Other

Heater problem
1992 Other GMC Models 6 cyl Two Wheel Drive Automatic 159000 miles

There is no water comming from tail pipe, no water leaks but no heat air blowing fine not over heating
runs well what could it be and where do I start to look for problem
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Nashport
January 15, 2010.



Welcome to the forum. Does the engine reach normal operating? Do the heater hoses get hot? The heater core may need to be flushed?

JDL
Jan 15, 2010.