I recently purchased a 2003 Corvette with the 350 LS1 engine. As of this inquiry, I have owned this car for 5 days. The car has a manual transmission, 5800 miles and appears to be in superior condition. I have a 99 day drive train warranty.
When I start the vehicle, after sitting in the garage overnight, it produces 1 to 2 backfire pops. This occurs within the first few seconds or so after starting (2 to 5 seconds). It then seems to be run fine and idles and revs normally after those initial backfires. Two days prior to these episodes, I filled the gas tank with Sunoco Ultra 93 octane.
Any thoughts as to what may be causing the backfires? Any tips for diagnosing the problem?
Thanks much for your feedback and expertise.
have the same problem?
Wednesday, July 29th, 2009 AT 10:22 PM