1998 GMC Jimmy Heater
#1
11-26-06, 10:22 AM
1998 GMC Jimmy Heater
I have a 1998 GMC Jimmy Blazer. 4 door 4.3 liter automatic trans, 4 x 4. Heater will work then get cool then it will get hot. It goes back and forth from hot to cold. Any ideas? Thermostat?
#2
11-26-06, 10:29 AM
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Your cheapest and easies route would to replace the thermostat first. If still nothing, think about replacing the heater control valve which is within your engine bay.
#4
11-26-06, 11:45 AM
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