How do you check the CPS on a Jeep Cherokee?
Test # 1 – Get a volt/ohm meter and set it to read 0 – 500 ohms. Unplug the CPS and measure across the CPS connector’s A & B leads. Your meter should show a CPS resistance of between 125 – 275 ohms. If the CPS is out of that range by much, replace it.
How do I know if my crank sensor is bad?
Symptoms of a Bad Crankshaft Position Sensor
- Illuminated Check Engine Light.
- Engine Refuses to Start.
- Hard Starting and/or Stalling.
- Engine Runs Rough and Misfires.
- Reduced Fuel Economy.
How long does it take to change a crankshaft sensor?
The labor to replace the sensor is just under 1.5 hours according to my labor guide and the part is approx $50.
What happens when crank sensor goes bad?
Engine Refuses to Start When the CKP sensor fails, the PCM doesn’t know when to fire the spark plugs and pulse the fuel injectors. As a result, the engine may be starved of fuel and/or spark, resulting in a vehicle that refuses to start.
How does the crankshaft position sensor work on a jeep?
Crankshaft Position Sensor on the Jeeps (4.0 & 2.5) reads a set of slots that is spinning on the flywheel. These slots cause the CKPS to send a pulse to the Power Control Module (ignition computer/brain box) indicating engine speed.
How do I know if my CPS is bad?
You should be able to verify a bad cps, by unplugging it, and turning the ignition key to on. If the voltage gauge and/or the fuel gauge now displays correctly, replace the CPS.
How do I install a sensor on the YJ?
When purchasing a new sensor for the 4.0/auto YJ there will be paper spacer attached to the end of the sensor that gets inserted into the bell-housing. This spacer sets the correct depth to be installed. Simply drop the sensor in until the paper spacer bottoms out in the hole, then tighten the bolt.