What could cause the accelerator to stick wide open on my 2013 Chevrolet Express 1500 V8?
gummed up electronic throttle body
relearn it with a factory-level scanner . . . a cheapo code reader will NOT perform this functional test
go to functional tests
then go to module setup
then go to idle learn reset
if you clean the throttle without doing these additional steps, there’s an extremely good chance you’ll have a check engine light accompanied with a messed up idle
Needless to say, any mechanic that uses this factory-level scanner should properly diagnose the vehicle before commencing to cleaning
looking at actual values vs expected values should quickly give you a clue
Thanks. That helps a great deal. I’ll get this taken care of ASAP.