Where can I find a fuel system diagram for a 2002 GMC Sonoma crew cab Zr5
Fuel pump in tank to fuel filter on frame rail, to a connector on back of motor, to fuel injector spider. There is a test port for pressure near the connector on the back of the motor.
Search GMC Sonoma Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
GMC Sonoma Experts