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Old 02-08-2006, 11:40 AM
Ali Al-Chalabi's Avatar
Ali Al-Chalabi Ali Al-Chalabi is offline
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Join Date: Nov 2000
Location: Knoxville, TN
Posts: 1,837
Is it the AIR (Air injection reaction) pump used to reduce cold start emmissions? If so, it makes some noise when it runs which is normal.
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Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record
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