Oil on crank sensor

boolinhemi · Sep 20, 2015

So I got a replacement sensor and installed it after my truck had sputtering and stalling out with codes calling for the crank sensor. When I pulled out the old one, it had oil on it. I imagine this is why there was no signal from the crank sensor. I wiped it off, and installed the new one. Problem fixed for a few days. Then today I get the same problem and start stalling out and sputtering, but no code yet. Tried to restart it and it took a long time to crank so I knew that it was the crank sensor. Why is there oil on the sensor? I understand it's next to the crankshaft but shouldn't there be something stopping the sensor from getting oil all over it?

boolinhemi · Sep 22, 2015

Hurry up

boolinhemi · Sep 27, 2015

Hurry up

boolinhemi · Sep 29, 2015

Hurry up

RonJon '06 · Sep 29, 2015

It's normal for there to be oil on the end of the crank sensor because it sits inside the crank case. It's never happened to me but I've read a bad camshaft sensor can cause a crankshaft code and vice versa.

boolinhemi · Oct 3, 2015

When I pull out the crank sensor it's covered in oil. I wipe it off and it'll drive for a couple times. Then it will start acting up and I'll have to get back under the truck remove it and wipe it off. I used to be able to run it for a few days safer wiping it off now it's just a few starts, and getting lower. I don't understand what would cause this

Jimmy68 · Oct 3, 2015

Spray it with PAM. That way the oil won't stick to it. You have a bad seal in your engine that is letting oil flow and splash around inside your crankcase. You need to see the dealership right away. Tell them your splash shield has dropped and the seal between it and the capacitor ring has broken and it needs replacement and readjustment. Takes about thirty minutes with the correct tool. While in there, have them check your encabulator. Some people have a turbo on theres.

RonJon '06 · Oct 3, 2015

You could have a broken/corroded wire inside the harness. If it you can get it to stay running try moving the harness around to see if the quality of the idle changes. This happened to me on a Jeep Cherokee. We replaced a lot of parts before the mechanic figured out it was a bad wire.

jwheeler · Oct 3, 2015

It the crank sensor really isn't working, the oil on it is not the problem. There is no way you are going to prevent that. It is likely a Lois connection. Check the female terminals in the connector and make sure they are tight.

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JohnnyJ · Oct 12, 2015

my truck was doing the same thing today. replaced the camshaft sensor and it fixed my problem hope this helps

boolinhemi · Oct 13, 2015

I have replaced the sensor and it works until oil gets on it. The oil is the only variable. The sensor/wiring wouldn't all the sudden start working when I wiped the oil off if it wasn't the oil. It's definitely the oil.

boolinhemi · Oct 13, 2015

Jimmy make sure to swap the blinker fluid in your superslow out with full synthetic

jwheeler · Oct 13, 2015

It is totally not the oil.

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Oil on crank sensor

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