GM 3.1L, 3.4L Index of Articles

This article will show you how to test and diagnose a bad GM Mass Air Flow (MAF) Sensor on all of the early 90 thru’ mid 90’s Buick, Olds, Pontiac 3.1L, 3.3L and 3.8L V6... [read more]

In this test tutorial, I'll show you how to test the Mass Air Flow Sensor to see if it's bad (and lighting up the check engine light) or not. This MAF Test is done in 3 easy... [read more]

Trying to find out which Cylinder is the one Misfiring can be a little difficult if the PCM (Powertrain Control Module= Fuel... [read more] at:

This is one of the easiest Mass Air Flow Sensors to Test. The following Test is an On Car Test that checks the performance of the MAF Sensor with the engine running. You'll... [read more]

Testing a Misfire Condition or Misfire Codes (P0300, P0301, P0302, P0303, P0304, P0305, P0306) on a 3.1L or 3.4L V6 Gm car or... [read more] at:

This MAF sensor is used in all of the different GM Makes: Buick, Chevrolet, Oldsmobile, Pontiac, and of course GMC (you'll find a complete list of models below). Since this... [read more]

If you're trying to nail down a hard to diagnose Misfire Condition or Misfire Codes and need to know how to do and interpret an... [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. Well the good news is that this is an EGR... [read more]

This article will walk you, step by step, through the testing of the alternator on your 3.1L or 3.4L GM car. No expensive testing... [read more] at:

Testing to see if the starter motor is the one causing your GM 3.1L or 3.4L equipped car or mini-can not to crank and start is an... [read more] at: