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

P0135, P0141, P0155, P0161 O2 Heater Performance (GM 4.8L, 5.3L, 6.0L)

P0135, P0141, P0155, P0161 O2 Heater Performance  (GM 4.8L, 5.3L, 6.0L)

Troubleshooting DTCs P0135, P0141, P0155, P0161 is not hard and in this tutorial, we'll look at some of the basics you need to know and what tests you need (to solve the Oxygen Sensor problem these Diagnostic Trouble Codes indicate). Each one of... read more >> (at: troubleshootmyvehicle.com)

Intake Air Temp (IAT) Sensor Test (GM 4.8L, 5.3L, 6.0L)

Intake Air Temp (IAT) Sensor Test (GM 4.8L, 5.3L, 6.0L)

Testing the Intake Air Temperature (IAT) Sensor, which is located inside the Mass Air Flow (MAF) Sensor, can easily be done with a Scan Tool and/or a Multimeter. In this article, I'll show you how to test IAT Sensor in a step-by-step way that will... read more >> (at: troubleshootmyvehicle.com)

GM Electronic Throttle Body Circuit Descriptions And Testing Tips

GM Electronic Throttle Body Circuit Descriptions And Testing Tips

‘Fly-by-wire’ systems are being used in a lot of cars and pickups on the road today... and one of the most common ‘Fly-by-Wire’ systems in use is the one that graces most of the newer GM pickups: the Electronic Throttle...   read more >>

BAD Fan Clutch Troubleshooting Case Study (4.8L, 5.3L, 6.0L)

BAD Fan Clutch Troubleshooting  Case Study (4.8L, 5.3L, 6.0L)

This Case Study will help you to test a Thermal Fan Clutch on any GM vehicle equipped with one. Believe it or not, there's a specific and logical diagnostic strategy to diagnose a BAD Fan Clutch (that's causing your vehicle to overheat). Now, the... read more >> (at: troubleshootmyvehicle.com)

How To Test The MAF Sensor (GM 4.8L, 5.3L, 6.0L, 8.1L)

How To Test The MAF Sensor (GM 4.8L, 5.3L, 6.0L, 8.1L)

This article will show you how to test the MAF on your GM car, pick up, or SUV using a digital multimeter and without using a scan tool. All you need (to diagnose and troubleshoot the MAF sensor) is a digital multimeter capable of reading Hertz...   read more >>

Crank Sensor Test (4.8L, 5.3L, 6.0L) No Spark No Start Tests

Crank Sensor Test (4.8L, 5.3L, 6.0L) No Spark No Start Tests

If the Crank Sensor fails, in your 4.8L, 5.3L or 6.0L GM vehicle... it's not gonna' start. In this article, I'll show you how to test it using a Multimeter (in Volts DC mode). The Crank Sensor test in this article is an On Car Test. It's not... read more >> (at: troubleshootmyvehicle.com)

Multimeter Resistance Specifications Of APP Sensor 1, APP Sensor 2

Multimeter Resistance Specifications Of APP Sensor 1, APP Sensor 2

If you've been searching for a simple resistance test and specification tutorial for the Accelerator Pedal Position (APP) Sensors (APP 1, APP 2, and APP 3)... then you've found it here. In this tutorial, I'm gonna' present to you my ‘Cheat...   read more >>

How To Do A Compression Test (GM 4.8L, 5.3L, 6.0L)

How To Do A Compression Test (GM 4.8L, 5.3L, 6.0L)

Testing the engine compression on your 4.8L, 5.0L, or 6.0L engine is not hard to do. A compression test will help you to determine the health of your engine by measuring the pressure of the air that gets compressed by the piston rings against...   read more >>

Blown Head Gasket Test (GM 4.8L, 5.3L, 6.0L)

Blown Head Gasket Test (GM 4.8L, 5.3L, 6.0L)

The end result of severe over-heating is usually a blown head gasket, but not always. If and/when a head gasket burns or the cylinder head warps, you're gonna' need to check/test for 3 specific things and they are: Engine oil mixed with...   read more >>

Cleaning The GM Electronic Throttle Body (4.8L, 5.3L, 6.0L)

Cleaning The GM Electronic Throttle Body (4.8L, 5.3L, 6.0L)

Cleaning the throttle plate and throttle plate bore on the 4.8L, 5.3L, and 6.0L GM electronic throttle body is one of the most important routine maintenance services that should to be done on your GM pickup or SUV. Why?... Well, when gum and...   read more >>