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Old Sep 3, 2010 | 06:56 AM
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whine
when I cycle my glow plugs in the morning I am hearing a whistle/whine. Could I be losing my relay? Just started about a month ago and has gotten louder. Starts up fine and I dont notice it (noise) any other time of day. Thoughts,, I have not pulled codes but I will when sun comes out.
 
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Old Sep 3, 2010 | 06:58 AM
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Just a guess, but my vacuum pump whines sometimes in the morning at start up. Usually the relay doesn't make any sounds other than perhaps a click.
 
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Old Sep 3, 2010 | 07:00 AM
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Not your ESOF vac pump running is it?Noise under the hood or in the cab?


Chris is faster this morning
 
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Old Sep 3, 2010 | 07:02 AM
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under the hood, I have a lever,no esof
 
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Old Sep 3, 2010 | 07:08 AM
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O.K...What about PS pump?Done the flush lately?
 
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Old Sep 3, 2010 | 07:12 AM
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power steering pump? I replaced that last year although how would that make noise when engine isnt fired or under strain?
 
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Old Sep 3, 2010 | 07:20 AM
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Originally Posted by hanklin
power steering pump? I replaced that last year although how would that make noise when engine isnt fired or under strain?
Sorry...Moved to another thread and forgot that part
 
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Old Sep 3, 2010 | 08:56 AM
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You still have a vacuum pump to control your HVAC system. I would have someone turn the key while your head is under the hood to hear where it's coming from.
 
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