2000 Chevy Silverado Question

2000 CHEVROLET SILVERADO
206,000 MILES • 6 CYL • 2WD • AUTOMATIC
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CHYRISE7
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I have a company vehicle (described above)- my employees have complained that while driving this truck it's making noise and it kind of lunges forward when decelerating. They also said that it is idling at a high rate (approx. 30 rpm's while stopped). I think it sounds like the timing belt/ chain. Plan to have it evaluated. However, one issue that has come up is they said they are not getting as good gas mileage (went from getting 14-15 mpg to approx. 10.5 mpg) since this anomaly began. Is it possible (as they maintain) that this above mentioned problem has affected the gas mileage??
Sep 14, 2010 at 4:48 PM
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JACOBANDNICKOLAS
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Has the check engine light come on? Have you checked the idle air control valve or throttle position sensor? Can you describe the noise it is making?
Sep 18, 2010 at 11:37 PM