Question about 2003 GMC Savana
I have a GMC savana 2003 cargo van. The fan no longer goes on. Fuses are OK and blower motor resisitor is not the problem. The fan works when direct voltage is applied. what could it be?
hi the contacts in the switch would appear to be faulty if you can get to the switch try spraying the switch with wd40 or simular as if you can spray the contacts it may clean them if you want abit more positive diagnostic while wipers are working disconnect the wires from the switch when they won,t turn off if they continue to work check out the relay yates210456
Posted on Oct 09, 2008
remember you will always charge an air conditioner on the low side. which is always on the larger hose. there is a smaller one which is the high side so stay away from the small one.. look up near the radiator and see if you see the dryer which is about 3 inches across and 8 inches long and looks like a cylinder.. on this device there is a port where you can charge it .. also this year might be up near the firewall .. they change locations too often .. thanks and holler if you need more. Jerry
Posted on Apr 25, 2009
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