GM 2.4L Index of Articles

Testing a fuel injector on a 2.4L Quad 4 engine is a pretty easy affair, since they are in plain view and easy to get to (after taking off a few things, that is). This... [read more]

When the MAP sensor goes bad on your GM 2.4L Quad 4 equipped vehicle, you'll see one of the following codes stored in your vehicles memory: P0106, P0107, or P108. The cool... [read more]

Testing the Quad 4 (2.4L) GM Ignition Coils can be a bit of a challenge since they're located under an Aluminum cover. Also, in my... [read more] at:

Nothing sucks more than having your car not start. Without your car, how can you get to work? To the grocery store? To get the kids to and from school? Well, this article... [read more]

Diagnosing a Misfiring Quad 4 engine in all of the models that use this engine can be a challenge. This is a case study of one... [read more] at:

Crankshaft Position (CKP) Sensors and Camshaft Positions (CMP) Sensors used on cars and trucks today come in all sorts of different... [read more] at:

This type of EGR valve has made the auto repair industry and GM a ton of money over the years, since it's prone to carbon blockage.... [read more] at:

Bench Testing The Starter is the most effective way to find out if the Starter Motor is in fact bad. This is an easy test that you... [read more] at:

Troubleshooting and testing the throttle position sensor (TPS) or Diagnostic Trouble Codes: P0121, P0122, P0123 on your 2.4L Quad 4... [read more] at:

I remember when the Quad 4 Engine first came out and thinking what a pain in the ass diagnosing and repairing it would be. And as... [read more] at: