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2002 Chevrolet Truck Repair Question


Topics covered: Choke, Engine, Fuel pressure.
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.
Avatar Asked by sunnylexus

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

Tiny Answered by hmac300 (expert)
17,843 answers provided