GM 3.1L Index of Articles

Troubleshooting a misfire problem isn't difficult nor complicated. In this tutorial, I'm going to share some of my experience on how to diagnose a misfire issue. I'll... [read more]

The camshaft position (CMP) sensor is easily tested with a multimeter. In this tutorial, I'll explain how to test the CMP sensor in a step-by-step manner. You'll easily... [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]

Troubleshooting a no-start problem can seem difficult since quite a few issues can cause it. But in reality, there is a method to the madness of troubleshooting such a... [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]

The spark plug is a small component of the ignition system, but one that plays an outsized role in keeping the engine running smoothly and optimally. In this article I'm... [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]

In this tutorial, I'm going to explain how to test the MAP sensor with a simple multimeter. You'll be able to easily find out if the MAP sensor is bad or not. All of the... [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]

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]