Vacuum pump operation - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 04-01-2013, 05:15 AM Thread Starter
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Vacuum pump operation

I have a 2002 f350. Is my vacuum pump supposed to hold pressure when the truck is off? It will run for 15 seconds or so with the key forward. I didn't hear any leaks but just curious if this is normal.

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post #2 of 2 Old 04-01-2013, 03:36 PM Rookie
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I am new to the diesel game. I traced the lines on my electric vacuum pump and the only serviced the ac blend doors and the auto front hubs. As long as your blend doors are working, I think you are good. My truck had the front hubs replaced with Warn manual hubs.
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