Jeep 4.0L Index of Articles

In this tutorial I'll show you how to test the rear (downstream) oxygen sensor's heater element with a multimeter. With your test results you'll able to find out it's bad... [read more]

In this tutorial I'll show you how to test the front oxygen sensor's heater element with a multimeter. With your test results you'll able to find out it's bad and behind... [read more]

APPLIES TO: This oxygen sensor circuit wiring diagram applies to the following vehicles: 1993, 1994, 1995 4.0L Jeep Cherokee. This oxygen sensor circuit wiring... [read more]

In this tutorial I'll show you how to test the crankshaft position (CKP) sensor with a simple multimeter and in a step-by-step way. You'll be able to easily find out if... [read more]

Testing the crankshaft position (CKP) sensor, on your 1996 4.0L Jeep Cherokee, is not difficult. In this tutorial I'll show you how to do it with step-by-step test... [read more]

The oxygen sensor, on the 1993-1995 4.0L Jeep Cherokee, is a 4 wire sensor that comes equipped with an internal heater. Sooner or later the O2 sensor's internal heater... [read more]

This tutorial will explain the 4 most common ways to test for a blown head gasket on the 1993-2001 4.0L Jeep Cherokee. So, if you suspect that you've got a blown head... [read more]

APPLIES TO: This oxygen sensor circuit wiring diagram applies to the following vehicles: 1997, 1998 4.0L Jeep Cherokee. This oxygen sensor circuit wiring diagram... [read more]

A bad crankshaft position (CKP) sensor will cause your 1993-1995 4.0L Jeep Cherokee to crank but not start due to a lack of spark. In this tutorial I'll explain how to... [read more]

APPLIES TO: This oxygen sensor circuit wiring diagram applies to the following vehicles: 1996 4.0L Jeep Cherokee. This oxygen sensor circuit wiring diagram... [read more]