When to test the crank sensor on a jeep?
TIP 3: One of the most important things to keep in mind, when testing the crank sensor on your Jeep, is that if you have tested for spark and you are getting spark, then the crank sensor is OK. 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.
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.
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.
When does the PCM set the ignition coil code?
Since the secondary winding contains many more turns of wire, output voltage is increased to thousands of volts. This is enough to fire the spark plugs. The PCM sets an ignition coil control circuit code P0351-P0358 when it detects a problem with the ignition coil circuit.
What’s the diagnostic code for a Jeep YJ?
Diagnostic trouble code and descriptions: 11*: No crank reference signal detected during cranking. Timing belt skipped one or more teeth; or intermittent loss of either camshaft position sensor or crankshaft position sensor. 12*: Battery or computer recently disconnected within the last 50 start cycles).
Where is the crankshaft position sensor on a Jeep Cherokee?
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. The crankshaft position sensor, on your 4.0L Jeep equipped SUV, is a Hall-Effect three wire crankshaft position sensor.
Can you check the engine code on a Jeep Wrangler?
When Chrysler / Jeep came up with this idea for getting the engine codes, it was a very smart move. This generation of Wranglers and Cherokees had the most simple diagnostics of any other. You need no special scanner to get the trouble code.
What happens when you have bad coil packs on a Jeep Cherokee?
If acceleration has diminished, it should be felt. The less cylinders that your engine has, the more that one cylinder not firing properly will have an effect on engine performance. If you have one or more bad Coil Packs, it’ll cause the acceleration of the Cherokee to be weaker, and you’ll probably feel a jerking sensation.
What kind of crank sensor does a Jeep Grand Cherokee have?
Crank Sensor Circuit Descriptions 1994-1996 4.0L Grand Cherokee Terminal Color Description 1 RED/LT GRN Crank Signal 2 BLK/LT BLU Ground 3 WHT/BLK 8 Volts ( 1994-1995) 5 Volts ( 1996 )
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 know if your engine has no spark?
First Confirm Your Engine Has No Spark. 1 Disable the fuel system by removing the fuel pump fuse or relay. 2 Insert a spark plug tester into the plug boot and ground it on a piece of metal on the engine. 3 Finally, Have someone crank the engine and watch for spark.
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.