TRUCK STARTS GOOD, JUST STARTED IDLING FAST WHEN STARTED ABOUT 2K THEN WARMS UP TO 1K WHEN DRIVING. THE #3(CATALYTIC CONV.) O2 SENSOR FELL OUT OF PIPE HAS TO REPLACED THIS WEEK ALONG WITH SENSOR(DAMAGED). I THOUGHT THIS SHOULD ONLY CAUSE BAD GAS MILEAGE AND ROUGH RUNNING. I CHECKED THROTTLE CABLES AND REPLACED I.A.C. SENSOR AND PROBLEM GOT WORST STARTS AT 3K AND DID NOT WANT TO LEAVE RUN LONG BUT DOES NOT APPEAR TO BE DROPPING AFTER WARMED UP. COULD THIS BE BLOCKED CAT. CONVERTER, ANY IDEAS APPRECIATED. ED
Feb 27, 2010 at 10:47 AM