Does her Jeep cool Cherokee"s timing feel off? your crankshaft place sensor might need to be replaced. Read on to learn just how you have the right to replace it yourself.

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This article uses to the Jeep grand Cherokee WJ (1999-2004).

The crankshaft place sensor is a little electronic sensor in her Jeep grand Cherokee, and also it is design to record reading top top the place of your crankshaft. The readings climate goes to the computer system in her Jeep, and also using the information, the car can idle smoothly. If the crankshaft position sensor malfunctions in your Jeep, friend will have the ability to drive the auto until you rotate it off, in which case you might not be able to start it back up. If the automobile doesn"t go in limp mode, your gas mileage will experience tremendously, so replacing it as soon as possible is an extremely important. Review on to learn exactly how you have the right to replace the crankshaft position sensor yourself.

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Figure 1. Crankshaft position sensor.
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Step 1 – Disconnect the battery

Disconnect the negative battery terminal (black). Climate wrap the in a towel to stop it poignant with any metal.

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Figure 2. Disconnect battery (black terminal).

Step 2 – remove crankshaft position sensor

Locate the crankshaft position sensor. It"s situated on peak of the transmission"s bell housing, under the firewall. This is a really tight squeeze, so friend will should use your ratchet with plenty of extension to with it. The sensor has a cable connector associated to it. The connector is under the hood, i beg your pardon is linked with a lengthy wire the is linked to the sensor itself. Unplug the connector under the hood, and to get an exact location ~ above the sensor, follow the cable down.

From under the vehicle, usage your ratchet with an extension and also swivel head come unbolt the 2 bolts holding the sensor to the transmission"s bell housing.

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Figure 3. Crankshaft position sensor diagram.
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Figure 4. Crankshaft place sensor"s connector under hood.

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Step 3 – Install new sensor

To align the new crankshaft position sensor"s bolts, girlfriend will should squeeze her hand with from the top, wherein the connector and also wire go under to the sensor. If your eight doesn"t to the right in the tight squeeze, placed some grease in the end of your swivel head, and use that to hold the bolt till you align it and tighten that properly. When you"ve tightened the bolts, start your automobile to test.