GMC Sierra A/C fuse

This truck uses a system that is semi-computor controlled. The dash
control has probably sensed low pressure in the refrigerant system and
locked the compressor out to prevent damage. Jumping the low side cycling
switch will not correct the problem. The heater control panel has to be
accesses, the code cleared, and then the diagnosis of the low refrigerant
can proceed.
--
John Lamb
Lambs Automotive
Lincolnshire, Il.
847-821-2100

David Stark < <>...

You have to check and see if the compressor gets power 12V to the magnetic
clutch
on the compressor (there's a wire going to it)with ig and fan on if so
check pressure valve usually at receiver /drier bridge it if the compressor
runs you need a service on the A/Cond ie: low pressure
for advice
--
Go To
http://www.ozemail.com.au/~dbrimage

David Stark < <>...

Your truck has a valve that prevents the A/C clutch from kicking on if the
system is too low on refrigerant. Could be you are low on refrigerant and
this is the problem??

David Stark < <>...