Nissan 2.5L Index of Articles

This tutorial will help you to test the front O2 sensor heater on the 2000-2003 2.5L Nissan Altima. Testing the front O2 sensor's heater involves making sure that the... [read more]

This typical fuel pump circuit diagram applies to the 2002, 2003, 2004, 2005, and 2006 Nissan Sentra equipped with a 2.5L 4 cylinder. Fuel Pump Pressure... [read more]

This tutorial will show you how to test the internal resistance of the fuel injectors to see if they are bad or not. Contents of this tutorial:... [read more]

This typical circuit diagram of the blower motor circuit applies to the 2002, 2003, 2004, 2005, and 2006 2.5L Nissan Sentra. You can find the blower motor test here: How... [read more]

In this tutorial, I'll show you how to test the engine compression and more importantly, how to interpret the results of the test on your 2.5L equipped Nissan Altima (or... [read more]

This tutorial will help you test the blower motor on the 2002-2006 Nissan Sentra. The blower motor is a very easy component to test and in this tutorial I'll explain how... [read more]

Testing and troubleshooting the ignition coils on your Nissan Altima or Sentra is not hard! This article will take you through the whole testing process step by step. You'll... [read more]

You can test the starter motor on your 2.5L Nissan Sentra (or Altima) in three steps. I'll explain how in a step-by-step way. You'll be able to find out if the starter... [read more]

I've had so many folks come up to me and say: "I think the alternator is bad on my car because I disconnected the battery's negative terminal with the engine running and..."... [read more]

In this tutorial, I'm gonna' show you how to test the alternator, on your 2002-2006 2.5L Altima with just a multimeter. All of the test steps are explained in a... [read more]