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Loud whining noise on clod start

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Old 01-22-2012, 12:32 PM
gavone1976's Avatar
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Default 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?
 
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Old 01-22-2012, 01:31 PM
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Generally steering pump or ACE pump if applicable, try to narrow down the location of the noise.
 
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Old 01-22-2012, 01:45 PM
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sound comes from left side of engine,possibly power steering pump
 
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Old 01-22-2012, 02:44 PM
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Power steering. The gaskets by the high pressure line get hard when cold. Mine does it as well.
 
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Old 01-22-2012, 05:58 PM
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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; 01-22-2012 at 06:07 PM.
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