07/16/2024
OK MY MECHANIC BUDDIES- I AM STUMPED PLEASE HELP!! I have a 20147 Colorado, changed FPCM, Relearned etc. Gauges all work now but Truck is stalling ONLY ON HIGHWAYS saying reduce engine power and then shuts down-If I spray Ether into the throttle body it starts back up until stalling later on again. I also changed throttle body and relearned that. Local driving it is fine doesn't stall-the minute it goes on highway for a few then it stalls. Had it for a week-It did nothing. Now he has it back and calls this am, its broke down. ugh Im tearing my hair out with this one. Customer has 1000.00 into this and I dont know what else to do. Oh yea its a 3.6 btw. PLEASE SEND TIPS or TRICKS ANYTHING! thanks