boog

Thanks, I'llcheck it out. This is our first Mack. boogs

We recently ourchased a 2004 613 Vision with a 427 engine. After running the truck a week a ornage "lightning bolt" light came on. Not having a manual for the truck we called Mack in Indy & asked the service manager what the warning light was for & he said it as the "Engine Service Light" We took the truck to our local mechanic & he put a computer on it and the code came back saying it was the "EGR" valve. According to the mechanic our truck doesn't have a "EGR" valve. The company the guy works for runs three Mack trucks so he does have some experience working on them. Can anyone help us out on what's going on? I'm not sure what the code # was but will try to find out tomorrow. Also, is the air seat suspension replaceable or do I need to replace the whole seat assembly? The bushings on the drivers seat are worn allowing the seat to rock side to side. TIA, boog