2002 Chevrolet Truck Repair Question
Topics covered: Choke, Engine, Fuel pressure.
Mileage: 150,000 miles.
Mileage: 150,000 miles.
Asked on January 20, 2013
Chevrolet Truck Choke Problem
Obd2 code reading po300. engine lope on #3&4 cyclinders. change spark pluges-coil-injecters and wires.
Answer
Replied on January 20, 2013
check your fuel pressure it should be 60-66 psi at rail with key on if a small block. if big block 54-62 psi if pressure ok check for vacuum leak with choke spray