LT1-LT4 Modifications 1993-97 Gen II Small Block V8

How to stop the Crank Position Sensor Leak?

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Old 01-23-2007, 07:48 PM
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Default How to stop the Crank Position Sensor Leak?

My Mechanic Said freeze plug where do I get one so little? I also have a new Oring for it I bought from the dealership but I doubt it will work because we put Silicone/RTV on that thing and its still a good leak

thanks, Ryan
Old 01-23-2007, 07:55 PM
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do you still have the part # on o ring seal dealership told me had to buy new sensor. No thanks or did you get any o ring so you said i is still leaking even with silicone
Old 01-23-2007, 11:20 PM
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i have the new dealership O-ring didnt use it though we tryed it 2 times with a regular o ring with silicone/rtv

should we just do the O-ring or where can iget a freeze plug that size

btw no part # i just told them what it was for
Old 01-24-2007, 05:16 AM
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Originally Posted by Gun5
i have the new dealership O-ring........btw no part # i just told them what it was for
I tried that, and the dealer told me the only way to get the o-ring was to buy the entrie sensor "assembly". I went to an industrial hardware supplier and picked up a couple, but sorry, I don't remember the size...it was 2-3 years ago.
Old 01-24-2007, 01:04 PM
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Um, a freeze plug isnt going to do you any good... As it would require removal of the sensor.

Well you can work around that by deleting the SES code(s) for the CPS sensor... But you loose the misfire detection feature of the pcm.
Old 01-24-2007, 01:06 PM
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Is there a picture of the Crankshaft Position Sensor? Mine might be bad.
Old 01-24-2007, 02:43 PM
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Dont know of a pic, but its on the lower portion of the timing cover... Below the balancer hub on the bottom radius.
Old 01-24-2007, 02:44 PM
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Originally Posted by Fire67
Dont know of a pic, but its on the lower portion of the timing cover... Below the balancer hub on the bottom radius.
How much does it cost at the parts store?
Old 01-24-2007, 04:12 PM
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removal of it? its not even hooked up I have a 94 so its not doing me any good..

how can I stop the damn thing from leaking its pissing oil all over the place outta the thing
Old 01-24-2007, 04:16 PM
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94 didn't have a Cam or Crank Position Sensor(s), unless when your motor got re-built they converted it to OBDII..
Old 01-24-2007, 04:33 PM
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Originally Posted by the_merv
94 didn't have a Cam or Crank Position Sensor(s), unless when your motor got re-built they converted it to OBDII..
How much is the CPS?
Old 01-24-2007, 08:40 PM
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listen ill sell you mine if u someone can tel me how to stop it up so it stops leaking!!
Old 01-24-2007, 09:08 PM
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You have a pic of it, I have never seen one on a LT1. Everyone I know has a 1995 or back car. Worst case, change the Timing Cover to a 1995.
Old 01-24-2007, 09:10 PM
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crap i wish i had got a pic today.. anyways i think me and my mechanic are gonna pull stuff again so we might just weld it
Old 01-24-2007, 09:15 PM
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If you get it all the way down to that, try and find a 1995 Timing Cover.
Old 01-24-2007, 09:18 PM
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we have 3 timing covers all with holes in the bottom lol if we do pull it WELD TIME if not what size freeze plug anyone?? ill have the sensor for sale here with NEW O-Ring
Old 01-24-2007, 11:51 PM
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here's a pic guys

bottom of timing cover the thing with the wire going to it.. only held on 1 side with a bolt (GAY) just like the AIR or EGR on the headers why cant it just have 2 bolts
Old 01-25-2007, 05:35 AM
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Originally Posted by Shackleford
How much is the CPS?
It's about $35-40 at the stealership's parts dept.
Old 01-25-2007, 06:05 AM
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Originally Posted by the_merv
If you get it all the way down to that, try and find a 1995 Timing Cover.
I Agree.
Old 01-25-2007, 07:12 AM
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That Engine looks pretty good with that Tubular K Member. How does it hold up? I am thinking about upgrading to one of them when I do my swap.


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