GM 4.8L, 5.3L, 6.0L Index of Articles

In this tutorial I'm gonna' explain how to do a compression test on the 4.8L, 5.3L, 6.0L V8 engines of the Chevrolet Express and GMC Savana van. I'm also going to explain how to interpret to your test results so that you can find out if your...   read more >>

This tutorial will help you to test diagnostic trouble codes P0135 and P0155 on specific 2003, 2004, and 2005 Chevy and GMC Pickups, Vans, and SUVs with either a 4.8L, 5.3L, or 6.0L V8. If you're wondering if this tutorial applies to your...   read more >>

Testing the fuel pump, on your 2003-2007 V8 equipped Chevrolet Express (GMC Savana) van, can easily and accurately be done with a fuel pressure test gauge. In this tutorial I'll explain how it's done so that you can find out if the fuel pump is...   read more >>

With the help from this tutorial, you be able to test the oxygen sensor to see if its heater element is really fried, and thus causing the P0135 or P0155 to light up your check engine light. In case this tutorial doesn't cover your specific...   read more >>

APPLIES TO: This ignition system wiring diagram applies to the following vehicles: Chevrolet: Express (1500): 4.8L, 5.3L: 2003, 2004, 2005, 2006, 2007 Express (2500): 4.8L, 5.3L, 6.0L: 2003, 2004,...   read more >>

This tutorial will help you test the downstream oxygen sensor's on your 4.8L, 5.3L, or 6.0L Chevy or GMC Pickup or SUV. If this tutorial doesn't cover your specific vehicle, take a look at the index of tutorials here: O2 Sensor Tutorial...   read more >>

APPLIES TO: This simplified fuel pump circuit wiring diagram applies to the following vehicles: Chevrolet: Express (1500): 4.8L, 5.3L: 2003, 2004, 2005, 2006, 2007 Express (2500): 4.8L, 5.3L, 6.0L:...   read more >>

Testing the post-catalytic converter oxygen (O2) sensors, to see if they are causing the P0141 or P0161 to light up your check engine light (CEL) on your instrument cluster is not hard to do. With the testing instructions, in this tutorial, I'll...   read more >>

This tutorial will help you to test diagnostic trouble codes P0135 and P0155 on specific Chevy and GMC Pickups, Vans, and SUVs with either a 4.8L, 5.3L, or 6.0L V8. To see if this test tutorial is the one you need for your specific GM vehicle,...   read more >>