1992 Other GMC Models no heat

1992 GMC
159,000 MILES • 6 CYL • 2WD • AUTOMATIC
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NASHPORT
  • MEMBER
  • 1 POST
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
Jan 15, 2010 at 5:39 AM
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JDL
  • ✓Experienced Mechanic
  • 16,098 POSTS
Welcome to the forum. Does the engine reach normal operating? Do the heater hoses get hot? The heater core may need to be flushed?
Jan 15, 2010 at 6:17 AM
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