Loud whining noise on clod start

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Jan 22, 2012 | 12:32 PM

gavone1976

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Mudding

Joined: Feb 2011

Posts: 125

Likes: 0

From: southern new jersey

Loud whining noise on clod start

The truck lets out a loud whine on cold start,usually just the first of the day.
Any thoughts?

Jan 22, 2012 | 01:31 PM

tee51397

Rock Crawling

Joined: Sep 2007

Posts: 354

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From: Charleston, SC

Generally steering pump or ACE pump if applicable, try to narrow down the location of the noise.

Jan 22, 2012 | 01:45 PM

gavone1976

Thread Starter

Mudding

Joined: Feb 2011

Posts: 125

Likes: 0

From: southern new jersey

sound comes from left side of engine,possibly power steering pump

Jan 22, 2012 | 02:44 PM

Snafu / Disco Fries

Recovery Vehicle

Joined: Oct 2010

Posts: 1,037

Likes: 8

From: NNJ

Power steering. The gaskets by the high pressure line get hard when cold. Mine does it as well.

Jan 22, 2012 | 05:58 PM

Savannah Buzz

Super Moderator

Joined: Jan 2011

Posts: 16,322

Likes: 88

From: Savannah Georgia

Can also use long stick or screwdriver to hold against pump when cranked an hear it even better. But you may find it is the SAI electric pump, on first cold start of the day.

Last edited by Savannah Buzz; Jan 22, 2012 at 06:07 PM.

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