Question about 2000 GMC Safari

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1994 gmc safari,no heat

I changed the thermostat,still no heat,top rad hose gets warm,not hot.temp gauge gets up to about 150 degrees after running engine about 45 mins.drove about 10 miles and gauge doesn't move either.just blows warm air

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Sounds like a blend door problem gm uses plastic clips to hold actuator rods that tend to break easiest thing to do is take it to a shop that offers free heater checks. and let them check it out

Posted on Jan 16, 2009

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