GM 3.1L Index of Articles

You can easily and quickly test the starter motor with a few basic hand tools and a multimeter. In this tutorial, I'll show you how in a step-by-step manner. You'll easily... [read more]

This simplified ignition system wiring diagram applies to the following vehicles: 1997 3.1L V6 Buick Century. This typical circuit diagram includes the following... [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]

This simplified ignition system wiring diagram applies to the following vehicles: 1996 3.1L V6 Buick Century. This typical circuit diagram includes the following... [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]

This simplified ignition system wiring diagram applies to the following vehicles: 1994, 1995 3.1L V6 Buick Century. This typical circuit diagram includes the following... [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]

When the front O2 sensor's internal heater fails, the PCM will set a diagnostic trouble code P0135. But an internal heater failure isn't the only thing that'll set the... [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]

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]