This happened on my 99 Tahoe last year! It was my cap/rotor. Replaced with after market Delphi and cleared it up... For about 2 months when it happened again. Had a funny feeling it was the same issue with the cap/rotor. Bought AC Delco cap/rotor and haven't had an issue since and it's been a...
I know this is an old thread, but wondering if anyone found the fix for this. I as well have a 99 Tahoe 5.7 Vortec. Same issue! Except after it starts and warms up I get a slight misfire at 15-1700 rpm. Also on the highway between 70-75mph. The cold start has always been an issue, but never this...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.