97 2 door tahoe 5.7L; Truck began to decelerate on freeway and would not go over 40 mph. Knocking sound heard from under vehicle. rpms went up, while speed contined to decline. However, a few minutes later, everything seemed to be working fine, and truck accelerated with no problem. Checked transmission fluid, and everything looks okay. What could be the problem?
Dec 15, 2009 at 1:11 PM