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#1
06-28-2003, 07:56 PM
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poor performance
I have a 2001 silverado ext cab with the 4.8 and 3.42 rear end, I have an airaid filter kit and flowmaster dumps, everything else is stock, it has 52,000 miles on it. I did a basic tune up on it a few months ago (fuel filter, spark plugs,etc) I used bosch platinum plugs, but now it seems very sluggish off the line. The problem seemed to start after the tune up. Any suggestions please help!
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#2
06-28-2003, 11:11 PM
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Remove the Bosch plugs and put in some AC Delco plugs! GM designed the computer with certain parts and they work the best with those parts.
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Shop Foreman Buick Pontiac and GMC dealership ASE Master Tech ASE Advanced L1 GM Master tech Licensed Aviation mechanic
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