I got a 03 ecsb with a 5.3 that has a rough idle, and no ecu code. It only does it while I'm in drive with the brake on. I was thinking maybe a vacuum leak. The truck is bone stock.
I got a 03 ecsb with a 5.3 that has a rough idle, and no ecu code. It only does it while I'm in drive with the brake on. I was thinking maybe a vacuum leak. The truck is bone stock.
99 excab, Nelson Tune, k&n FIPKII, pacesetter long tubes, No Cats, Dual Magnaflows with turndowns,
1/4: 15.66@88.1 Before Nelson, headers, and de-cating
Also 69 camaro SS 350 4speed, 13.81@103.6, Ls1 swap planned
Posting Permissions
Reply With Quote