GM 3.1L, 3.4L Index of Articles

How To Test The Thermostat (GM 3.1L, 3.4L)

How To Test The Thermostat (GM 3.1L, 3.4L)

If you've been wondering if it's possible to test the Thermostat on your 3.1L or 3.4L GM equipped vehicle without removing it, the answer is YES. As you may be already aware, the Thermostat is located under the Intake Manifold's Throttle Body and... read more >> (at: troubleshootmyvehicle.com)

Fuel Injector Resistance Test (GM 3.1L, 3.4L)

Fuel Injector Resistance Test (GM 3.1L, 3.4L)

Testing for a BAD Fuel Injector on the GM 3.1L and 3.4L engines can be a challenge, since the Fuel Injectors are underneath the upper Intake Manifold Plenum. This article will show you how to test them using a simple Multimeter. No Scan tool is... read more >> (at: troubleshootmyvehicle.com)

MAP Sensor Multimeter Test (GM 2.8L 3.1L, 3.4L)

MAP Sensor Multimeter Test  (GM 2.8L 3.1L, 3.4L)

Testing the GM Manifold Absolute Pressure (MAP) Sensor on your GM 2.8L, 3.1L, or 3.4L V6 equipped car can be accurately done using only a Multimeter and a Vacuum Pump. This article will show you how to bench test it (although you’ll be leaving the... read more >> (at: troubleshootmyvehicle.com)

Testing The Oxygen Sensor (GM 3.1L, 3.4L)

Testing The Oxygen Sensor (GM 3.1L, 3.4L)

You're gonna' be surprised just how easy it is to diagnose the Oxygen Sensor (O2 Sensor) on your 3.1L, 3.4L OBD II equipped GM Vehicle. Testing them will save you some bucks ($$$), since so many different conditions can trick the PCM (Powertrain... read more >> (at: troubleshootmyvehicle.com)

How To Test For A Blown Head Gasket (GM 3.1L, 3.4L)

How To Test For A Blown Head Gasket (GM 3.1L, 3.4L)

A Blown Head Gasket will make your 3.1L or 3.4L GM car or minivan over-heat and/or Not Start. On your vehicle, you probably have already replaced the Water Pump, or the Thermostat or the Fan Motor or know that all these are OK and yet the car or... read more >> (at: troubleshootmyvehicle.com)

How To Test The 24X Crank Sensor (GM 3.1L, 3.4L)

How To Test The 24X Crank Sensor (GM 3.1L, 3.4L)

Testing the 24X Crankshaft Position (CKP) Sensor or Code P0336 (24X Reference Signal Circuit) is an easy test that only involves a Digital Multimeter! You don’t even need a Scan Tool (although a Scan Tool is a very handy tool to have). The test... read more >> (at: troubleshootmyvehicle.com)

Coolant Leaking From Intake Gaskets (GM 3.1L, 3.4L)

Coolant Leaking From Intake Gaskets  (GM 3.1L, 3.4L)

One of the most common problems on the GM 3.1L and 3.4L engines is coolant leaking from the intake manifold gaskets. This problem has been a gold mine for GM and the auto repair industry. Although GM has been aware of this problem ‘since man... read more >> (at: troubleshootmyvehicle.com)

Testing Diagnostic Trouble Codes: P0135, P0141, P0155, P0161

Testing Diagnostic Trouble Codes:  P0135, P0141, P0155, P0161

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 Codes have to do with a malfunction in the Oxygen Sensor's Heater or it's... read more >> (at: troubleshootmyvehicle.com)

Fuel Pump, No Start Test GM 3.1L, 3.4L

Fuel Pump, No Start Test GM 3.1L, 3.4L

I’m going to show you two different methods that you can use to verify if the No Start Condition on your 3.1L or 3.4L GM vehicle is due to a Lack of Fuel... which usually means that the Fuel Pump has gone BAD. I have used both methods successfully... read more >> (at: troubleshootmyvehicle.com)

How To Test The Cam Sensor (P0341) GM 3.1L, 3.4L

How To Test The Cam Sensor (P0341) GM 3.1L, 3.4L

Troubleshooting and testing the Camshaft Position Sensor and Diagnostic Trouble Code (DTC): P0341 CMP Sensor Circuit Performance, ( or DTC 17 if OBD I equipped) is one of the easiest tests on the planet! All you need is a Multimeter and this... read more >> (at: troubleshootmyvehicle.com)