GM 3.9L Index of Articles

How To Test The MAP Sensor (2008-2010 3.9L Chevrolet Impala)

How To Test The MAP Sensor (2008-2010 3.9L Chevrolet Impala)

In this tutorial I'm going to show you how to test the manifold absolute pressure (MAP) sensor on the 2007, 2008, 2009 and 2010 3.9L Chevrolet Impala. The absolute best way to accurately test the MAP sensor is with a vacuum pump and a multimeter...   read more >>

How To Test The MAP Sensor (2006-2007 3.9L Chevrolet Malibu)

How To Test The MAP Sensor (2006-2007 3.9L Chevrolet Malibu)

The MAP sensor, on the 2006-2007 3.9L Chevrolet Malibu and Impala can be tested very easily with just a simple multimeter. This test is so accurate that with its results you'll be able to find out if it's defective or not. In this tutorial...   read more >>

Ignition System Wiring Diagram (2006-2009 3.9L Chevrolet Impala)

Ignition System Wiring Diagram (2006-2009 3.9L Chevrolet Impala)

NOTE: The following ignition system wiring diagrams apply only to the 2006, 2007, 2008, and 2009 3.9L V6 Chevrolet Impala. Contents of this tutorial at a glance: DIAGRAM 1: 2006 3.9L V6 Chevrolet Impala. DIAGRAM 2:...   read more >>

Blower Motor Circuit Wiring Diagram (2006-2007 3.9L Chevrolet Malibu)

Blower Motor Circuit Wiring Diagram (2006-2007 3.9L Chevrolet Malibu)

This typical circuit diagram of the blower motor and blower motor control processor (electronic blower motor resistor) circuit applies to the 2006, 2007 3.9L V6 Chevrolet Malibu. Color codes: BRN: brown. BLK: black. DK BLU: dark...   read more >>

How Often Should I Replace The Spark Plugs (2006-2010 3.9L V6 Engine)

How Often Should I Replace The Spark Plugs (2006-2010 3.9L V6 Engine)

Since quite a few things can cause the spark plugs to fail (particularly on high mileage engines), sooner or later you're going to have to replace the spark plugs on your 3.9L V6 engine. In this article you'll find out what causes them to fail,...   read more >>

Blower Motor Circuit Wiring Diagram (2006-2009 3.9L Chevrolet Impala)

Blower Motor Circuit Wiring Diagram (2006-2009 3.9L Chevrolet Impala)

This typical circuit diagram of the blower motor and blower motor control processor (electronic blower motor resistor) circuit applies to the 2006, 2007, 2008, 2009 3.9L V6 Chevrolet Impala. Color codes: BLK: black. GRY/BLK: gray with...   read more >>

How To Test A Blown Head Gasket (2006-2010 3.9L V6 Engine)

How To Test A Blown Head Gasket (2006-2010 3.9L V6 Engine)

There are 4 tests that are done to confirm a blown head gasket and in this tutorial I'm going to explain how to do them. With your test results youĺl be to find out if you have a blown head gasket (or not) on your GM vehicle equipped with a 3.9L...   read more >>

Ignition System Circuit Wiring Diagram (2006-2009 3.9L Pontiac G6)

Ignition System Circuit Wiring Diagram (2006-2009 3.9L Pontiac G6)

NOTE: The following ignition system wiring diagrams apply only to the 2006, 2007, 2008, and 2009 3.9L V6 Pontiac G6. Contents of this tutorial at a glance: DIAGRAM 1: 2006 3.9L V6 Pontiac G6. DIAGRAM 2: 2007 3.9L V6...   read more >>

How To Test The Engine Compression (2006-2010 3.9L V6 Engine)

How To Test The Engine Compression (2006-2010 3.9L V6 Engine)

Engine compression problems can cause a no start problem or a misfire condition. In this tutorial I'm going to explain how to test the engine compression on the 3.9L V6 GM engine and more importantly, how to interpret your test results. GM...   read more >>

Ignition System Wiring Diagram (2006-2007 3.9L Chevrolet Malibu)

Ignition System Wiring Diagram (2006-2007 3.9L Chevrolet Malibu)

NOTE: The following ignition system wiring diagrams apply only to the 2006 and 2007 3.9L V6 Chevrolet Malibu. Contents of this tutorial at a glance: DIAGRAM 1: 2006 3.9L V6 Chevrolet Malibu. DIAGRAM 2: 2007 3.9L V6...   read more >>