I have a 1999 Chevy Blazer 2wd 4.3L automatic with 155K miles. It starts out running rough first thing in the am. After a few more weeks it get worse and acts up anytime of the day (worse in am). I can change the rotor and it will run perfect for 1 to 2 months. I have tried 3 different brands of rotors including OEM Chevrolet with no success. This problem started about 125k miles. I have had it tuned up, including distributor cap, wires and plugs. Any ideas? Thanks.
have the same problem?
Wednesday, October 10th, 2007 AT 11:27 AM