GM 3.1L, 3.4L Index of Articles

Troubleshooting a Hard to Diagnose Misfire Case Study (GM 3.1L, 3.4L)

Troubleshooting a Hard to Diagnose Misfire  Case Study (GM 3.1L, 3.4L)

This is a real life case study that will help you diagnose a hard to find misfire. Although this case study involves a 2000 Chevy Monte Carlo (with a 3.4L V6), you can apply this info to any 3.1L or 3.4L GM equipped vehicle (see the Applies To box... read more >> (at: troubleshootmyvehicle.com)

How to Avoid a Blown Head Gasket (GM 3.1L, 3.4L)

How to Avoid a Blown Head Gasket  (GM 3.1L, 3.4L)

If you've had the misfortune of having to replace or are in the process of having to replace the head gaskets on your GM 3.1L or 3.4L equipped GM vehicle... you may be wondering if it's possible to avoid a repeat of the problem. The answer is: Yes,... read more >> (at: troubleshootmyvehicle.com)

How to Test the Throttle Position Sensor (GM 3.1L, 3.4L)

How to Test the Throttle Position Sensor (GM 3.1L, 3.4L)

This article will take you step by step thru' the testing and troubleshooting of the throttle position sensor on your GM 3.1L or 3.4L V6 equipped car (Buick, Chevrolet, Oldsmobile, Pontiac). You don't need an automotive scan tool, since all of the...   read more >>

How to Test the Ignition Coil Packs (GM 3.1L, 3.4L)

How to Test the Ignition Coil Packs (GM 3.1L, 3.4L)

In this type of Direct Ignition System (DIS), three individual ignition coil packs are mounted right on top of the ignition control module (ICM). As you already know, each coil pack comes with two towers that fire off a spark to two different...   read more >>

Testing the Ignition Module and Crank Sensor (GM 3.1L, 3.4L)

Testing the Ignition Module and Crank Sensor (GM 3.1L, 3.4L)

This article will help you test the ignition control module (ICM) and 3X crankshaft position sensor on all of the GM 3.1L and 3.4L overhead valve engines (the 3X Crank Sensor is also known as the 7X Crank Sensor). So, if you're driving a Chevy,...   read more >>

GM EGR Valve Test (P0401, P0403, P0404, P0405)

GM EGR Valve Test  (P0401, P0403, P0404, P0405)

Testing and troubleshooting an EGR valve issue or EGR diagnostic trouble code (DTC) on your GM vehicle is not hard to do. In this article I'll show you how to do it step-by-step and you won't even need a scan tool! Before we jump in head...   read more >>