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Old 05-16-2014, 01:47 PM   #1
goofy3392
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Crankshaft position sensor keeps breaking.

I just put in a new CKP and it just went out today. It was only in for about 1.5 running hours and I only drove about 10 miles.

I tried shimming this one out but a regular washer set it out too far and wouldn't run so I just put it on without a washer.. I have some .030 and .007 banding, how big of spacer should I use?

Car is a 2002 SE zetec Auto tranny.



New sensor:






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Old 05-16-2014, 04:40 PM   #2
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I ground down a washer to about .060 and the car started and ran good. Pulled the sensor out and no damage yet.

Here's a pic of how I made my shim.

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Old 05-16-2014, 11:43 PM   #3
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Whats happening is your crank is "walking" , your on the right track , shim it

Shim it as far as you can and it still run , I would start with a .020 to .030

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Old 05-17-2014, 12:07 AM   #4
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Originally Posted by 1turbofocus View Post
Whats happening is your crank is "walking" , your on the right track , shim it

Shim it as far as you can and it still run , I would start with a .020 to .030

Tom
Thanks Tom, I got it running good now. When I was grinding down that washer I had it to the point where it would fire a couple of times and it back fired once, then I ground it a tad more and it runs great.

Although doing this doesn't make me feel too safe for longer trips away from home.
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Old 05-17-2014, 08:44 AM   #5
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Moved to "General Technical Chat".
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Old 05-17-2014, 09:03 AM   #6
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Quote:
Originally Posted by goofy3392 View Post
Thanks Tom, I got it running good now. When I was grinding down that washer I had it to the point where it would fire a couple of times and it back fired once, then I ground it a tad more and it runs great.

Although doing this doesn't make me feel too safe for longer trips away from home.
Throw a wrench , a few ground washers , new sensor into the car and go , I shimmed about 60 of these now and no a one ever let me know it didnt keep working and some were 6-8 years ago

Tom
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Old 05-17-2014, 09:10 AM   #7
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time for new crank bearings
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Old 05-17-2014, 09:13 AM   #8
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See crank.
See crank walk.
Walk crank walk.
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Old 05-17-2014, 09:38 AM   #9
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Originally Posted by 1turbofocus View Post
Throw a wrench , a few ground washers , new sensor into the car and go , I shimmed about 60 of these now and no a one ever let me know it didnt keep working and some were 6-8 years ago

Tom
Well thats good news! I got 15 miles on this sensor, so far so good.
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Old 05-17-2014, 04:37 PM   #10
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Not rocket science. Take average depth of the gouge damage while considering the deepest part, add .010" for clearance and your shim thickness.
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