Can you test the crank sensor on a Jeep Cherokee?
The crank sensor on your Jeep is a Hall Effect type sensor and it can not be tested by a simple resistance test. Don’t let this stop you from reading this article because the test I’m gonna’ show you is very easy and is done in Volts DC mode on your multimeter.
Where is the temp sensor on a jeep?
The one wire sensor in the back sends temp readings to the gauge in the Jeeps dash. If you temp gauge isn’t acting right, replace the one wire. The two wire sensor located in the thermostat housing sends its signal to the PCM. For poor performance issues and testing we are going to look at the two wire up front.
Is there a resistance test for a crank sensor?
In case you’re needing a resistance test of the crank sensor, I hate to tell you that one does not exist. The crank sensor on your Jeep is a Hall Effect type sensor and it can not be tested by a simple resistance test.
When to replace the coolant temperature sensor test?
If your sensor only registers infinite resistance, the sensor has a broken internal contact and you need to replace it. If the sensor only registers zero resistance, the internal contacts are shorted. Replace the sensor. The coolant temperature sensor test is rather simple.
How many ohms does a Cherokee coolant sensor read?
Attach your lead to this wire, and the other end of your test lead to ground. You should read the same 3.3 ohms for a full tank. If you don’t, you have a bad wire and you need to replace it.
What should the coolant resistance be on a Cherokee?
Remove the coolant sensor from the reservoir tank. With the float all the way down, the resistance across the contacts should be zero. Now raise the float up as if you had a full coolant tank — the resistance should be approximately 3.3 ohms.
The crank sensor on your Jeep is a Hall Effect type sensor and it can not be tested by a simple resistance test. Don’t let this stop you from reading this article because the test I’m gonna’ show you is very easy and is done in Volts DC mode on your multimeter.
What should the temperature be on a Jeep Cherokee?
I have never seen an XJ that runs the “195Degree” optimal temperature without help ie upgrades or constant maintenance and low mileage most run about 200-210 wich is running hot to me before I get beat up about that statement keep in mind that is my experience here in Texas with our heat Good replies so far!
Is there a way to test a crankshaft sensor?
This is probably the most straightforward and the most certain way to test for and identify a crankshaft sensor problem. Unfortunately, the crankshaft sensor is usually pretty worn by the time that the check engine light is on. You might already be experiencing crankshaft sensor problems before the ECU has noted any sign of trouble.
What should the CKP sensor read on a crankshaft?
Touch the DMM red lead to the red (power) wire on the harness connector. You may need to check the wiring diagram for your particular model, if the CKP sensor uses wires of different color to identify the ground, power and signal wires. Turn the ignition key to the On position. Your meter should read between 5 and 13 volts.
Why are the wires on my Jeep not the same?
TIP 4: The color of the wires (in the image in the image viewer) may not match the ones on your particular Jeep. This is no cause for concern, as long as you keep in mind that the connector locking tab is on top (in the photo), the circuits (wires) will be the same.
How to test a bad crankshaft position sensor?
Symptoms Of A Bad Crankshaft Position (CKP) Sensor. Circuit Descriptions Of The Crankshaft Position Sensor. TEST 1: Testing The Crankshaft Position Signal. TEST 2: Making Sure The CKP Sensor Has Power. TEST 3: Making Sure The CKP Sensor Has Ground. Where To Buy The Crankshaft Position Sensor.
What does a spark test on a crank sensor mean?
A spark result tells you that the crank sensor is doing it’s job. In a case like this (where you’re getting spark), this test will not help you. This also means that you should test for spark first. TIP 4: The color of the wires (in the image in the image viewer) may not match the ones on your particular Jeep.
How to test for spark in a jeep?
So, to test for spark. Have your Jeep in neutral (or park if it’s an automatic). Be sure the emergency brake is full engaged and/or wheels chocked to prevent it rolling over your toes or worse. Pull the coil wire from the distributor and put an extra spark plug in the end you removed from the distributor.