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Originally Posted by working Hummer
But the pump does not run when the truck is off. So what's the point of pulling out the fuse?  |
That's the point---it IS running with the ignition off.
I was worried about running down the battery and possibly burning up that damned expensive compressor.
Thanks Humtech---I hate to ask this but where is the relay and how do I check or is it just easier to go ahead and replace it and see if that works? Where might I find on of those animals?