1986 Ford Ranger 2.9 automatic 4x4 Changed every sensor, including computer, will run great until normal operating temp, then "loads up" black smoke, and bucks and******. Ran fine for 2 1/2 days when I installed new O2 sensor, then resumed bucking and********, I am at wit's end, can you help?
Jan 3, 2011 at 6:29 PM
