JEFFS13
SDD Junior Member
Hi, this is the first post and i'm stumped. No codes showing.When the outside temp gets above 106 my 03 6.0 will loose all throttle response and go to 500 rpm. If I put the truck in neutral try to rev engine it seems to clear and off I go. No sign of overheating,temp stays in the normal range. 145,000 on the truck been worked hard but well kept
