Iam really afraid, I replaced the knock sensors and harness to my truck, reassembled everything turn on the truck it starts backfires, and selve revolutions to 6000 rpm after some seconds in max it sttuters and turns off itself.
My car has 100000 miles.
My car has an automatic transmission.
Hi - I suspect the throttle mechanism, specifically the throttle position sensor, has been damaged, or possibly re-installed incorrectly during your other repairs. I would recommend an inspection of the throttle system by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.
Have a car question? Get free advice from our top-rated mechanics.
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing