Blower works no heat. New radiator, thermostat, water temp censor. any suggestions?
SOURCE: Heated seats won't stay on in 2004 GMC Yukon Denali
There is a widespread problem with electrical shorts with the seat warmers. I bought the extended warranty through CarMax and theyy fixed it. Retail repair cost on that would have been $900+. It may be covered by GMC via a recall, but only if you raise enough hell.
SOURCE: 2002 GMC YUKON COOLANT KEEPS EVAPORATING
Sounds like a head gasket to me. Turn the engine on and put your hand near the exhaust and see if you feel any moisture. If you feel or see vapor it's more than likely the head gasket. Although it could be the intake gasket as well. Either way you're looking at a lot of work.
SOURCE: 1994 gmc safari,no heat
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
SOURCE: Thermostat problem? 99 GMC savanna cargo 2500 5.0 liter
jt\\it could be the water pump or the thermostat giving you problems
SOURCE: 1999 GMC Yukon - Blower only operates on high. I
on these models on the harness that plugs into the fan switch goes bad, I changed the switch and found this harness melted together on my 99 yukon
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is there anything I can do to unclog a heater core? Btw, my temp gauge doesnt work either. motor doesnt overheat.
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