Passenger side Air pump sound ? ? ? - Ford Powerstroke Diesel Forum
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post #1 of 5 Old 09-23-2010, 11:06 PM Thread Starter
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Passenger side Air pump sound ? ? ?

Hi does anyone know what part is next to the starter relay in the engine compartment (passenger side) that sounds like a air pump? I have a 2000 F-350 7.3
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post #2 of 5 Old 09-24-2010, 06:46 AM
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It's the vacuum pump for the 4x4 hubs and control of the air vents.

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post #3 of 5 Old 09-24-2010, 08:00 PM Thread Starter
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Hi I have manual hubs so I'm guessing that does not apply to me. My electric door locks not work very well could this pump be the issue? I have never heard that pump on any other 7.3?
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post #4 of 5 Old 09-24-2010, 09:20 PM
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they do get noisy sometimes when they're crapping out or so. btw no your door locks get worn out on the inside, theres a way to fix them and a wwrite up on here about it somewhere.
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post #5 of 5 Old 09-25-2010, 05:44 AM
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Quote:
Originally Posted by mfdboy911 View Post
Hi I have manual hubs so I'm guessing that does not apply to me. My electric door locks not work very well could this pump be the issue? I have never heard that pump on any other 7.3?
Yes, the pump still applies to you, it's for your HVAC system in the truck. Without the pump, your heater would be stuck on defrost all the tine.

You need new door lock actuators.

Zach
2000/2006ish Ford F-250 Larryette 7.3 Powerstroke 4x4
5" Sewer Pipe Exhaust (video clip), DIY 6637 Intake, Wicked Wheel'd, De-foiled, Missing EBPV, Edge Juice with Attitude, Few leaves added here and there, 35" BFGs, 16x10 Eagle Alloys, Alpine W200

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