squeaking in motor

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Apr 11, 2008 | 03:44 PM

#16

Vitaliykit

Senior User

Joined: Sep 2007

Posts: 160

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It has been few years, but I think WALJON is right. You can spin it by hand, but you should feel it.

Apr 11, 2008 | 04:01 PM

#17

Cuda_jim

Post Fiend

Joined: Oct 2003

Posts: 5,903

Likes: 1

From: MICHIGAN

[quote=WALJON;6026135]

Quote:

Originally Posted by Cuda_jim

Is that the vacuum pump? If so, the pump may be going bad. Try to spin it by hand, should be smooth. Any binding, it's due for replacement.

A silly question but should the vac pump spin freely by hand ?

thanks

Maybe that was the wrong way to state that. It should spin freely by hand with no binding/grinding. There should be a little resistance. If it's bad you'll know it.

The best way to find the noise is with a mechanics stethoscope or something similar while it's running (chunk of wood, screwdriver ect).

Apr 11, 2008 | 07:42 PM

#18

ivanockers

Thread Starter

New User

Joined: Jan 2008

Posts: 5

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thanks to all those who responded! i changed the vacuum pump and all is well again. *smile* as you might have guessed, i am new to the diesel world and am loving every second in my "new" truck...except yesterday. =)

Apr 12, 2008 | 06:56 AM

#19

F350_Hauler

Elder User

Joined: Oct 2005

Posts: 597

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From: West Palm Beach, Florida

Check your air lines off the vacuum pump and even down to the little lines that go to your heating duct doors. Repair as necessary. The vacuum pump generates a pretty good vacuum and sucks dust and sand into itself which will kill it within a year if dirt is getting in there. A vacuum pump will last indefinitely with no dirt intrusion.