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Depends on what you mean by heater will not work. If the blower motor will not work, it can be a blown fuse, bad blower motor, bad blower motor switch, or a defective blower motor resistor pack. If you mean that the blower motor works but there is no heat, then it can be a clogged heater core, thermostat stuck open, or defective heater control valve.
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How to replace a heater core in a 1992 GMC Jimmy?
I need to know how to replace a heater core in a 1992 GMC Jimmy?
Where is the heater control valve located on a 2001 gmc jimmy?
heater control valve located on 2001 gmc jimmy 4.3l
Diagram of a heater core on 2001 gmc jimmy?
A diagram of the heater core of a 2001 GMC Jimmy can be found in the service manual. It outlines the location of all the components and how they are connected.
Why does the air work but no heat in 2000 gmc jimmy?
Low coolant? Heater control cable not adjusted properly? Bad thermostat? Heater core "airbound"? Water pump not circulating coolant?
Where is the heater core on a 1997 GMC Jimmy?
The Heater core on your 1997 Jimmy is on the passenger side inside the cab, but it is behind the black plastic close the floor, and very difficult to get at.
How do you replace the heater core with air conditioning on a 1994 gm jimmy?
hi, i need to know how to replace the heater core with a/c on a 1994 gmc jimmy. a diagram would be helpful
2000 gmc jimmy smoking from vents is it the heater core?
Yep and the core is a pain to replace.
How do you change a heater core in a 1998 jimmy?
Before CHanging the Heater Core, have you tried flushing it? I have a 99' Jimmy and have to do this every year to get my heater to work.
What would cause the AC or heater on a 1996 GMC Jimmy to not go on high?
fan speed control switch is bad. Replace it as long as the other speeds work fine.
GMC Jimmy heater not working?
Low coolant? Bad thermostat? Heater core plugged, restricted, or airbound? Temperature control cable not working?
How do you loop the hoses when heater core breaks on a 94 gmc jimmy?
Disconnect them from heater core and with a coupling and 2 hose clamps tie them together
Why is there antifreeze leaking inside the 1995 GMC Jimmy?
Passenger side floor? Could be leaking heater core
