GM 4.8L, 5.3L, 6.0L Index of Articles
Starter Motor Circuit Diagram (2003 V8 Chevrolet Express, GMC Savana)
- December 05, 2020
- Updated: December 05, 2020
- Written by: Abraham Torres-Arredondo

APPLIES TO: This starter motor circuit wiring diagram applies to the following vehicles: Chevrolet: Express (1500): 4.8L, 5.3L: 2003 Express (2500): 4.8L, 5.3L, 6.0L: 2003 Express... read more >>
How To Do A Compression Test (2003-2014 V8 Chevrolet Express, GMC Savana)
- November 28, 2020
- Updated: November 28, 2020
- Written by: Abraham Torres-Arredondo

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 >>
P0135, P0155 -Upstream O2 Sensor Test (2003-2005 GM 4.8L, 5.3L, 6.0L)
- February 19, 2012
- Updated: July 07, 2020
- Written by: Abraham Torres-Arredondo

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 >>
How To Test The Fuel Pump (2003-2007 V8 Chevrolet Express, GMC Savana)
- November 25, 2020
- Updated: December 09, 2020
- Written by: Abraham Torres-Arredondo

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 >>
P0135, P0155 -Upstream O2 Sensor Test (2006-2009 GM 4.8L, 5.3L, 6.0L)
- August 03, 2011
- Updated: July 07, 2020
- Written by: Abraham Torres-Arredondo

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 >>
Ignition Coil Circuit Wiring Diagram (2003-2007 V8 Chevrolet Express, GMC Savana)
- November 22, 2020
- Updated: December 05, 2020
- Written by: Abraham Torres-Arredondo

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 >>
P0141, P0161 Downstream O2 Sensor Test (1999-2002 GM 4.8L, 5.3L, 6.0L)
- February 16, 2012
- Updated: July 07, 2020
- Written by: Abraham Torres-Arredondo

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 >>
Fuel Pump Wiring Diagram (2003-2007 V8 Chevrolet Express, GMC Savana)
- November 18, 2020
- Updated: December 05, 2020
- Written by: Abraham Torres-Arredondo

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 >>
P0141, P0161 -Downstream O2 Sensor Test (2003-2005 GM 5.3L, 6.0L)
- February 19, 2012
- Updated: July 07, 2020
- Written by: Abraham Torres-Arredondo

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 >>
P0135, P0155 -Upstream O2 Sensor Test (1999-2002 GM 4.8L, 5.3L, 6.0L)
- January 31, 2012
- Updated: July 07, 2020
- Written by: Abraham Torres-Arredondo

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 >>