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2001 1500, tapping noise

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Old Mar 14, 2012 | 06:28 PM
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brownhunter
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Default 2001 1500, tapping noise

I've had my truck over a year now. What is the tapping noise in the engine I hear about once a minute when the truck if idling or I am sitting in a drive thru? It taps once. That normal?
 
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Old Mar 14, 2012 | 07:39 PM
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Oops I bought said cooling off didn't realize you said idling, is your ac on when it taps? The clutch on the compressor makes a kind of tap noise when it engages
 
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Old Mar 15, 2012 | 12:08 AM
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What is oil pressure like at idle? How long ago was last oil change?

A mechanic's stethoscpe is about $4.....and works well to track someting like that down.
 
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Old Mar 24, 2012 | 06:03 PM
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Ok it only does this when the heater is on. I watched it click on and off on the drive belt.
 
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