GM 2.4L Index of Articles

As your car's 2.4L Ecotec engine starts to age (and accumulate miles), the piston rings and the cylinder head valves start to wear. Eventually this wear and tear will cause... [read more]

Quite a few things can cause your car to not start and a failed fuel pump is one of them. The cool thing is that you can easily and quickly check the fuel pump (to see if... [read more]

This article will help you to diagnose Diagnostic Trouble Codes: P0135, P0141, P0155, P0161 on your GM 2.2L, 2.4L, 3.1L, 3.4L, 3.8L, 4.3L, 5.0L, 5.7L. All of these Trouble... [read more]

You'd be surprised just how easy it is to diagnose a bad fuel injector on your 2008-2010 2.4L Ecotec equipped vehicle. For the most part all it takes is a simple multimeter... [read more]

It is possible to test the oxygen sensor on your GM 2.4L Quad 4 vehicle before buying it, and in this article I'll show you how to do it. Being able to say “YES,... [read more]

I can still remember the first time a Quad-4 equipped GM came into the shop (where I worked) and thinking what a pain in the neck it would be to work on it, after this first... [read more]

Overheating is the number one cause of a blown head gasket on a 2.4L Quad 4 equipped Buick (or Chevy, Olds, Pontiac) car. If you think that your car has a blown head gasket,... [read more]

Knowing how to do a manual cylinder balance test (when trying find the misfiring cylinder on your Quad-4 equipped GM vehicle) is gonna' save you a lot of time and... [read more]

Troubleshooting a misfire (P0300, P0301, P0302, P0303, P0304) or rough idle condition on your Quad 4, whether it's a Chevy, or a Buick, or a Pontiac, or an Olds, can be a... [read more]

Testing a cranks but does not start condition on your GM 2.3L or 2.4L Quad-4 engine isn't as hard as you might think. In this tutorial, I'll explain the basics of what... [read more]