GM 2.8L Index of Articles

There are several components that, when they fail, can prevent the engine from starting. These can include issues with the ignition coil, ignition control module, fuel... [read more]

The spark plugs are an important component of the ignition system and sooner or later, they'll need to be replaced. In this article, I'll answer some of the most commonly... [read more]

This tutorial will help you to test the blower motor relay on the 1991, 1992, 1993 2.8L V6 Chevrolet S10 pickup (GMC S15 pickup, GMC Sonoma) and S10 Blazer (GMC S15 Jimmy,... [read more]

The fuel pump can be easily tested with a fuel pressure tester on your 2.8L Chevrolet S10 pickup. In this tutorial, you'll find the step-by-step instructions that explain... [read more]

This typical circuit diagram of the starter motor applies to the 1991, 1992, 1993 2.8L V6 Chevrolet S10 and GMC S15 Pick Ups equipped with an automatic... [read more]

The EGR vacuum solenoid isn't difficult to test and in this tutorial, I'll show you how in a step by step manner. With your test results, you'll quickly determine if the... [read more]

This typical circuit diagram of the blower motor applies to the 1991, 1992, 1993 2.8L V6 Chevrolet S10 and GMC S15 Pick Ups. This circuit diagram includes the following... [read more]

In this tutorial, you'll find a step-by-step guide to troubleshooting the EGR valve as good or bad. All four EGR valve test steps are explained in detail so you can quickly... [read more]

This typical circuit diagram of the ignition coil, ignition control module, and pickup coil applies to the 1991, 1992, 1993 2.8L V6 Chevrolet S10 and 2.8L GMC S15. NOTE:... [read more]

I think you'll be surprised at how easy it is to troubleshoot the starter motor to determine if it's good or bad. In this tutorial, I'll explain the three tests you need to... [read more]