GM 2.8L Index of Articles

This tutorial will help you to test the blower motor relay on the 1991, 1992, 1993 2.8L V6 Chevrolet S10 Pick-Up and S10 Blazer (GMS S15 pickup and Jimmy). Two basic... [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]

If the ignition coil on your 2.8L Chevy S10 (GMC S15) fails, the engine is going to crank but not start due to a lack of spark. The cool thing is that testing the ignition... [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]

There are 4 specific ways to test for a blown head gasket. So, if you suspect that your Chevy S10 (or GMC S15) has a blown head gasket, this tutorial will show you how to... [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]

The oxygen sensor, on your OBD I 2.8L V6 equipped Chevy S10 (or GMC s15) is a single wire type that can be easily tested with a multimeter. You don't need a professional... [read more]

Even though the 2.8L V6 TBI fuel injected Chevy S10 (GMC S15) does not come with OBD II misfire diagnostics, you can still find out exactly which cylinder is dead... [read more]

Testing the throttle position sensor on your 1986-1991 2.8L V6 equipped S10 (or S15) is a pretty simple and straightforward process. The cool thing about the TPS test is... [read more]

When the ignition control module fails, your 2.8 liter Chevy S10 (GMC S15) will crank but not start. Testing the GM 7 pin ignition control module is easier than you think... [read more]