Vacuum Pump Passenger Side?? - Ford Powerstroke Diesel Forum
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Old 06-16-2011, 01:19 PM
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Vacuum Pump Passenger Side??

I noticed the other day, after my injectors stop clicking, there was a humming/running noise, so upon further looking, I saw the vacuum pump running, doesnt shut off, this never happened till after the dummy plugs were fixed. I may have possibly nudged the connector and plugged it "back" in?

Anyways, I don't think it should be running constantly as it never did before?
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Old 06-17-2011, 03:36 AM
huj huj is offline
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you have vacuum leak follow tthe hoses check make sure that they are hook up
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Old 06-17-2011, 01:21 PM
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All my hoses are hooked up, to my knowledge it runs the A/C, EGR valve and 4wd. I looked all over the transfer case, cant even find a hose that would go that way??? is it possibly a bad pump?
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Old 06-17-2011, 01:33 PM
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Also, my A/c, 4WD and EGR valve all work
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Old 06-17-2011, 01:45 PM
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Egr has nothing to do with your vacuum system. Are you getting air from all vents or only from your defrost?
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Old 06-17-2011, 01:48 PM
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only defrost
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Old 06-17-2011, 01:55 PM
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You've got a leak my friend. Start with the hubs if all your lines are hooked up. The pump runs on demand, so if there is a leak it will run constant and you only get air from the defrost vents. Use the little google search function in the top left, leaky hubs are common on these trucks.
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Old 06-17-2011, 01:58 PM
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is it quite visible with the wheels on?
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Old 06-17-2011, 02:01 PM
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I do have manual hubs if that matters?
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Old 06-17-2011, 02:12 PM
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Start simple, recheck the condition of all your lines and connections, then put it in 4x4 and check the lines for vacuum.

Manual hubs but push button on the dash right?
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a/c, transfer case, vaccum pump

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