i just had a newer engine put in my 1995 yukon because the crank shaft in the old engine was bad. the truck drove great with no noise problems or anything for about a week then all of a sudden the service engine soon light comes on. it only comes on every once in a while. the truck never has a problem starting and still does not make any weird noises but im worried as to what the diagnostic system could be reading as an error, what could it be. the only difference is a little hesitation in the acceleration once the light does appear.
Nov 26, 2008 at 9:18 PM
