Thinking it was bad gas, I put a tank of high test in, the second tank I put Stp octane booster. If I don't rev up the engine before changing gears, and do it fairly slowly, it stumbles. At 55 miles an hour, if i mash the pedal, it tries to stall.the chassis has 449,000miles theingine was changed at 429,000 miles.When i enter the number on the screen, it won't recognize it.
Nov 15, 2010 at 11:10 PM