GM 4.3L, 5.0L, 5.7L Index of Articles

How to Diagnose a Hard to Find Misfire Case Study (GM 4.3L, 5.0L, 5.7L)

How to Diagnose a Hard to Find Misfire  Case Study (GM 4.3L, 5.0L, 5.7L)

Diagnosing a misfire on a ‘Spider’ fuel injector equipped GM pick up, SUV or van can seem almost impossible but the truth is quite the contrary. What makes it easy, is having a diagnostic strategy and knowing some specific tests to...   read more >>

How to Avoid a Blown Head Gasket (GM 4.3L, 5.0L, 5.7L)

How to Avoid a Blown Head Gasket  (GM 4.3L, 5.0L, 5.7L)

Is it possible to avoid a blown head gasket on your 4.3L, 5.0L, or 5.7L pick up (SUV, van or mini-van)? The answer is: Yes, you can avoid a blown head gasket on your vehicle by taking some simple precautions. In this article I'll go into some...   read more >>

How to Test the Low-High Beam Headlight Dimmer Switch

How to Test the Low-High Beam Headlight Dimmer Switch

This article will help you to test the Low-High Beam Headlight Dimmer switch on your GM pick up, van, mini-van or SUV. Specifically, you'll be able to troubleshoot and diagnose a No Low Beams or a No High Beams Headlight problem. As you might...   read more >>

How to Test the Wiper Switch (Step by Step)

How to Test the Wiper Switch (Step by Step)

Testing to see if the wiper switch is BAD or not is not that hard to do. In this article, I'll show you how to do it with a multimeter. As you are probably already aware of... the wiper switch is part of the turn signal switch assembly (the...   read more >>

How to Test the Headlight Switch (4.3L, 5.0L, 5.7L)

How to Test the Headlight Switch (4.3L, 5.0L, 5.7L)

This article will help you to test a BAD headlight switch in step-by-step manner. Specifically, you'll be able to troubleshoot a ‘no head lights’ or a ‘no park lights’ problem to the head light switch. Testing the...   read more >>

MAP Sensor Test (P0106, P0107, P0108) (GM 4.3L, 5.0L, 5.7L)

MAP Sensor Test (P0106, P0107, P0108) (GM 4.3L, 5.0L, 5.7L)

In this article, I'm gonna' show you a simple but very accurate way of testing the manifold absolute pressure (MAP) sensor on your 4.3L, 5.0L, or 5.7L GM car or pick up or SUV. If your specific GM vehicle is OBD II equipped, and the check engine...   read more >>

1998-99 PCM Connector Pin Out Charts (GM 4.3L, 5.0L, 5.7L)

1998-99 PCM Connector Pin Out Charts (GM 4.3L, 5.0L, 5.7L)

In this article, you'll find the Pin Out descriptions of the 4 PCM Connectors for the 1998-1999 GM 4.3L, 5.0L or 5.7L Engines. NOTE: For other PCM pin-out charts, take a look at the following: 1993 PCM Pin Out Chart (GM 4.3L, 5.0L, 5.7L...   read more >>

How to Diagnose Misfire Codes (GM 4.3L, 5.0L, 5.7L)

How to Diagnose Misfire Codes  (GM 4.3L, 5.0L, 5.7L)

This article will help you to understand some of the most common causes of misfires and misfire codes (P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308) on the GM 4.3L, 5.0L and 5.7L equipped pick ups and SUVs. I'm also gonna'...   read more >>

1996-97 PCM Connector Pin Out Charts (GM 4.3L, 5.0L, 5.7L)

1996-97 PCM Connector Pin Out Charts (GM 4.3L, 5.0L, 5.7L)

The 1996-97 PCM (Powertrain Control Module = Fuel Injection Computer) on your 4.3L, 5.0L or 5.7L Engine has a total of 4 connectors. NOTE: For other PCM pin-out charts, take a look at the following: 1993 PCM Pin Out Chart (GM 4.3L, 5.0L,...   read more >>

How to Test the Headlight Switch (GM 1990-1994)

How to Test the Headlight Switch (GM 1990-1994)

In this article I'll show you how to test the headlight switch, on your Chevrolet or GMC pickup or SUV, with a multimeter. You'll be able to troubleshoot a ‘no headlights’ and/or a ‘no parklights’ condition and decisively...   read more >>