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Cam Position Sensor

 
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Old 03 Oct 2016, 09:11 am
Fk5 Fk5 is offline
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Default Cam Position Sensor

I see this one pop up all the time. I just changed mine and the cavity was full of oil. Can this be why it was malfunctioning? I dried it out with a paper towel, but assume it will fill back up. There didn't seem to be any oil on the outside of the sensor. Is this a rear (driver's side) cam seal? Car runs fine with the new one.
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Old 03 Oct 2016, 09:27 am
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Default Re: Cam Position Sensor

Good question, man. I'm thinking about swapping mine out with the one I grabbed at the junkyard last week off an 04 GT. Mine still has a slight miss to it that kind of reminds me of the old days of the V-8 engines with a slightly over sized cam. It's kind of "lumpy".
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Old 03 Oct 2016, 09:33 am
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Default Re: Cam Position Sensor

There is no seal and it's normal for some old to be in the magnet area. I've got photos of when I took mine apart when installing new camshafts. I'll posts the photos if I find them.

Early failure of these cam sensors has been reported over many different Chrysler platforms and predates the PT Cruiser by quite a bit. It's so common that if you go to salvage yards, you will sometime find the cam sensors gone off almost every 2.4L on the yard. They sell like hotcakes.
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Old 03 Oct 2016, 09:37 am
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Default Re: Cam Position Sensor

Todd, do you know the torque spec on the cover for the magnet?
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Old 03 Oct 2016, 09:43 am
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Default Re: Cam Position Sensor

Quote:
Originally Posted by chuzz View Post
Todd, do you know the torque spec on the cover for the magnet?
No. I would have to Google it just like anybody else. I may have listed it in one of two threads where I removed them. But I don't remember.
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Old 03 Oct 2016, 09:44 am
Fk5 Fk5 is offline
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Default Re: Cam Position Sensor

Well... I wouldn't exactly call 152,000 miles and 13 years and 5 months "early failure"...

Glad to hear that it is normal. I figured that if it was the oil, then cooling down probably wouldn't have helped much. I have had the issue with ignition triggers on 318s and 2.2s. This one was pretty easy. Thankfully I had an 8mm box end in my sack because with the turbo line (I think it is coolant) running by, I couldn't fit a socket too well.
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Old 03 Oct 2016, 09:47 am
Fk5 Fk5 is offline
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Default Re: Cam Position Sensor

Quote:
Originally Posted by chuzz View Post
Todd, do you know the torque spec on the cover for the magnet?
I believe the sensor was 115 inch pounds. I didn't do the magnet, so I don't know that one.

\EDIT: as corrected by Steve, per my shop manual, the correct torque is 80 in lbs +/- 15 in lbs and the target magnet is 32 in lbs =/- 5 in lbs
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Last edited by Fk5; 04 Oct 2016 at 11:22 am.
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Old 03 Oct 2016, 11:36 am
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Default Re: Cam Position Sensor

According to Haynes and Chilton, the camshaft magnet requires 32 in-lbs.
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Old 03 Oct 2016, 12:41 pm
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Default Re: Cam Position Sensor

Slight miss may be caused by metalic particle build up on the surface of the magnet. Just a thought.. It can be wiped off. I'm sure the oil is not a problem, thats why the cam sensor has an "O" ring seal. There is no seal between the last bearing and the sensor to my knowledge.
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Old 03 Oct 2016, 01:37 pm
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Default Re: Cam Position Sensor

Yep.

Here's a photo of one from an experiment I did to remove and install camshafts without have to remove the timing belt.




And here's the one on my GT with the journal cap still in place on the far right.




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