How does a camshaft work on a jeep?
A camshaft is the shaft where the cams which control valve operation are attached. The cam lobes act against a spring force to open the valves as the camshaft rotates. Each valve has its own cam which operates at a very precise timing in relation to the piston. Can a defective camshaft on a Jeep Cherokee cause it to stall frequently?
Where are the sensors on a Jeep Cherokee?
Your PCM has sensors on the radiator, the air filter, the vacuum pipe, the throttle body, and the crankshaft, to name a few. These sensors shouldn’t cause any disasters, but they can cause your PCM to make unnecessary adjustments that will affect your Jeep’s performance.
Can a Jeep Cherokee PCM be repaired off road?
Expectedly, a Jeep Cherokee PCM repair would be impossible as sudden PCM failures due to submerging your Jeep in water or mud would usually warrant a PCM replacement. So when going off-roading, exercise moderation and remember that your Jeep Cherokee cannot swim.
Where is the camshaft position sensor on a Jeep YJ?
Stick a screwdriver into the boot. Hold the shank of the screwdriver about 1/8″ from a ground (close to the block or near-by bracket). The tip of the spark plug that you removed the boot from would be best. Making sure the Jeep is in neutral. While they hold the brake, have a helper turn the engine over by the ignition.
How does the camshaft position sensor work on a jeep?
Camshaft position sensor determines which cylinder is firing. Then it uses that information to sync the injectors with the ignition. The CPS is one of two sensors that if they fail, your Jeep will not fire the spark plugs or cycle the fuel injectors.
What causes a bad camshaft on a jeep?
Most often the cause is a bad camshaft or crankshaft sensor or sometimes a failing fuel pump. The quickest way to resolve the problem is to have the fault codes read after a diagnostic scan. If either sensor needs to be replaced it does not cost much and can be done quickly.
Where is the camshaft on a Jeep YJ?
Rotate the engine either by hand until the pulse ring enters the magnetic pick-up on the camshaft position sensor. Rotor button should be pointing at about 8:30 – 9:00 o’clock position. Turn the ignition key to the “On” position. You should be reading approximately 5 volts.
How to install camshaft and pushrod in Jeep 4.0L?
Be sure to pump all oil out of the lifters before installing them. Put cam lube on the lifter bases and lifter sides. When the engine starts, the lifters will fill quickly. Once the lifters establish zero valve lash, the lifter plungers will stay at that height within the lifters.