How does the crankshaft position sensor work on a Jeep Patriot?
The crankshaft position sensor (CKP) and Camshaft position sensor (CMP) work in harmony to control the spark/fuel delivery and timing. They both consist of a reluctor, or tone, ring which passes over a magnetic sensor, which generates a voltage, indicating position.
How can I Reset my Check Engine light?
How can I Reset my Check Engine Light? 1 When the Light Comes On. A loose gas cap can cause the check engine light to come on. 2 Check the Error Codes. When the check engine light goes on, check under the hood for frayed wires that may need to be fixed right away. 3 Disconnect the Battery. 4 Fix the Car. 5 Service Required Light. …
Why does the Check Engine light come on?
Officially known as a malfunction indicator lamp, the check engine light can go on for a number of different reasons. In some cars, something as simple as a loose gas cap, which the car’s computer can read this as a leak in the emissions system, or even a change in humidity can cause the light to come on.
How to check engine light on Jeep Patriot?
A compression check (or better a leak down test) can check the mechanics. Let the dealer know you’ve already switched the coils and got the same result. ^^and dealer already put in new plugs last thursday – not sure what it is, dealer trying to make good on it, but glad i bought extended warranty as well.
Why is the ignition timing off on my Jeep Patriot?
As for the ignition timing being off, there’s nothing going on there. The engines have fixed cam and crank angle sensors and the ignition timing is set and controlled by the computer. Did you find the recommended reading relevant to this discussion?
Is it illegal to reset a check engine light?
Reputable auto shops will not reset a check engine light if the problem is not fixed. To do so would be illegal. This would only be acceptable if it is cleared to complete a diagnostic process to identify a problem. Check engine light being on is a sign that there is a problem with the car.
Why does my Jeep Patriot light up sideways?
It could be the rubber boot on the coil. If they don’t seal properly to the plug they can actually fire the spark sideways into the spark plug tube that everything sits into the head on. Die-electric grease helps seal the boot and give a high resistance path.