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

How To Troubleshoot A No Start (GM 4.3L, 5.0L, 5.7L)

How To Troubleshoot A No Start (GM 4.3L, 5.0L, 5.7L)

Testing a Cranks but Does Not Start condition on your GM 4.3L, 5.0L, 5.7L pick up, van or SUV is not that hard to do, if you have a solid diagnostic strategy. In this article I'll show you the basics of testing such a problem. I'll also explain...   read more >>

Testing The Oxygen Sensors (GM 4.3L, 5.0L, 5.7L)

Testing The Oxygen Sensors (GM 4.3L, 5.0L, 5.7L)

Testing the oxygen sensor (commonly referred to as O2 sensors) on your 4.3L, 5.0L, or 5.7L GM vehicle is not that hard to do. Since oxygen sensors are not cheap and sometimes the PCM (Powertrain Control Module = Fuel Injection Computer) accuses...   read more >>

Troubleshooting A Blown Head Gasket (GM 4.3L, 5.0L, 5.7L)

Troubleshooting A Blown Head Gasket (GM 4.3L, 5.0L, 5.7L)

There are so many ways to test for a blown head gasket on your 4.3L, 5.0L, 5.7L GM van (or mini-van, pick up, SUV) that it can get confusing. Well, I'm going to show you three different ways to test for a blown head gasket. These are step-by-step...   read more >>

Troubleshooting P0171 And P0174 (GM 4.3L, 5.0L, 5.7L)

Troubleshooting P0171 And P0174 (GM 4.3L, 5.0L, 5.7L)

Diagnosing diagnostic trouble codes P0171 (System too Lean Bank 1) and/or P0174 (System too Lean Bank 2) can be tough. Why? Well because these codes do not accuse any specific part as BAD. In this article, I'm gonna' demystify the process of...   read more >>

How To Test The Engine Compression (GM 4.3L, 5.0L, 5.7L)

How To Test The Engine Compression (GM 4.3L, 5.0L, 5.7L)

Testing the engine compression on your 4.3L or 5.0L or 5.7L GM equipped vehicle is not hard. In this article, I'll guide you every step of the way and I'll also show you how to interpret the results of the compression test. Why do an engine...   read more >>

Troubleshooting The Fuel Pump (GM 4.3L, 5.0L, 5.7L)

Troubleshooting The Fuel Pump (GM 4.3L, 5.0L, 5.7L)

In this article, I'm gonna' show you the most effective way to test the fuel pump on GM 4.3L, 5.0L, 5.7L engines with the ‘Spider’ fuel injector assembly and it involves using a fuel pressure gauge. I've also included how to check a no...   read more >>

How To Test The Cam Sensor Diagnostic Trouble Codes: P0340, P0341

How To Test The Cam Sensor Diagnostic Trouble Codes: P0340, P0341

Testing the cam sensor, inside the distributor on all 4.3L, 5.0L, and 5.7L GM equipped mini-vans, pick ups and SUVs, can be easily and accurately done with just a multimeter. No scan tool required for the cam sensor test... since a scan tool is...   read more >>

How To Test The Starter Motor (GM 4.3L, 5.0L, 5.7L)

How To Test The Starter Motor (GM 4.3L, 5.0L, 5.7L)

If you've been looking for a detailed step-by-step starter motor test, well you've found it. This article will show you how to test the starter motor on your GM 4.3L, 5.0L, or 5.7L pick up, van or mini-van. Having your pick up (or van or...   read more >>