Lots of people have 2001 gmc jimmy so can you be a bit more specific as to why you are on the fixya site if you want assistance with a problem
SOURCE: 2001 gmc jimmy engine warm but heater blows cold air
Disconnect the heater hoses from the water pump and the intake manifold. Get a compressor and blow out the hose (put the air hose into the the hose that came off the mainfold. then flush the system and replace the antifreeze.
SOURCE: low pressure knob for gmc jimmy 2001
It is on the accumulator. Passenger side near the air box. The silver can.
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