GM 3.1L Index of Articles

The manifold absolute pressure (MAP) sensor is a simple three-wire component easily tested with a multimeter. In this tutorial, I'll explain how to do it in a step-by-step... [read more]

The manifold absolute pressure (MAP) sensor is an important component of your vehicle's engine management system. It's one of the many input sensors the fuel injection... [read more]

Engine compression problems can cause a cylinder misfire problem or in a worst case scenario, an engine no start problem. With the help of the tutorial, you'll be able to... [read more]

The crankshaft position (CKP) sensor is a very critical component of the ignition system of any vehicle. Depending on your specific 3.1L V6 Chevrolet (Pontiac), it'll come... [read more]

In this tutorial I'm going to explain how to test the fuel pump with a fuel pressure test gauge on the 1995-1999 3.1L V6 Chevy Lumina and Monte Carlo. With your test... [read more]

Testing for a blown head gasket isn't difficult. And here you'll find the four blown head gasket tests explained in a step-by-step manner. Two of the four tests can be done... [read more]

This typical and simplified fuel pump circuit wiring diagram applies to: 1998, 1999 3.1L Chevrolet Lumina. 1998, 1999 3.1L Chevrolet Monte Carlo. This wiring... [read more]

Quite a few things can cause the engine in your 3.1L V6 Chevrolet Lumina (or Monte Carlo) to crank but not start. Thankfully, there is a diagnostic strategy that you can... [read more]

This typical and simplified fuel pump circuit wiring diagram applies to: 1997 3.1L Chevrolet Lumina. 1997 3.1L Chevrolet Monte Carlo. This wiring diagram... [read more]

This tutorial will help you to test the starter motor on the 1995-1999 3.1L Chevrolet Lumina (Monte Carlo). You'll also be able to find out if the starter motor is not... [read more]