Home Auto Repair How to Check the Fuel Injector on a GM 3800

How to Check the Fuel Injector on a GM 3800

56

General Motors Company’s 3800 engine is a V6, 3.8-liter engine. Produced between 1995 and 2008, the GM 3800 was installed in over six-million vehicles. The 3800’s fuel injectors are positioned three on each side of the V engine. The fuel injector sprays pressurized fuel into the combustion chamber when charged solenoid opens a valve in the injector. Failing injectors commonly trigger and engine code that turns on the “Service Engine” light in the instrument panel. A scan tool may be used to read the engine code to determine which cylinder requires fuel injector testing.

Things You’ll Need

Multimeter, Long-handled screwdriver, Scan tool

Instructions