GM 3.1L Index of Articles

The manifold absolute pressure (MAP) sensor is an engine management system component that is critical to the smooth operation the engine in your vehicle. As such, when it... [read more]

In this tutorial, I'll explain how to test the fuel pump with a fuel pressure test gauge. I've also included the instructions on how to perform a starting fluid test (which... [read more]

This typical and simplified fuel injector wiring diagram applies to: 1996, 1997 3.1L Oldsmobile Cutlass Supreme. The fuel injectors are located underneath the... [read more]

The crankshaft position sensor is the heartbeat of the ignition system of your 3.1L V6 Buick (Oldsmobile). In this article I'm going to answer some of the most commonly... [read more]

This simplified ignition system wiring diagram applies to the following vehicles: 1997 3.1L V6 Oldsmobile Cutlass Supreme. This typical circuit diagram includes... [read more]

Head gasket failures are usually due to severe engine overheating. If you suspect that you've got a blown head gasket on your hands then this is the tutorial that I'll help... [read more]

This typical and simplified fuel pump circuit wiring diagram applies to: 1996 3.1L Oldsmobile Cutlass Supreme. This wiring diagram includes the following component... [read more]

This tutorial will help you test the engine compression on your 3.1L V6 Buick or Oldsmobile. I'm also going to show you how to interpret your compression test results to... [read more]

This simplified ignition system wiring diagram applies to the following vehicles: 1996 3.1L V6 Oldsmobile Cutlass Supreme. This typical ignition system circuit... [read more]

This simplified starter motor circuit wiring diagram applies to the following vehicles: 1996, 1997 3.1L V6 Oldsmobile Cutlass Supreme. This typical circuit... [read more]