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Power Strokes
6.0 Tech
ac stuck on defrost
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[QUOTE="6.0 Tech, post: 1381921, member: 23001"] Get a golf tee and start plugging off line. I start with the one going into the pvh solenoid on the passenger fender. I cant remember which line off the top of my head, but trace it from the canister. If that then sends the air out the vents, plug off the line coming out of the solenoid. If it still blows out defrost, put a solenoid on it. If it blows out vents, plug off 1 hub at a time, if neither changes it, find a splice and plug yhere to determine where the leak is. If plugging the inlet to the solenoid doesnt work, plug the line into the tank, see if your pump is leaking, it should shut off after a couple seconds. Also, make sure the pump plug is fully seated on thepump and that the coolant control valve vacuum line is on. [/QUOTE]
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ac stuck on defrost
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