C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Knock Sensor

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Old Sep 3, 2010 | 05:25 PM
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Getting a DTC on my knock sensors... Would appreciate some advise on source and price for this part. Thanks.
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Old Sep 3, 2010 | 05:30 PM
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Originally Posted by jakers
Getting a DTC on my knock sensors... Would appreciate some advise on source and price for this part. Thanks.
Did you check to make sure the wire is connected good?
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Old Sep 3, 2010 | 06:35 PM
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Shoot I'd have to look at old receipts, IIRC it was around $50 each at O'Riley.
New ones had thread sealant on them, didn't need to add anything to them.
I used the open end of a combination wrench to pull them out.
IIRC it was 7 or 8 mm for the bolts holding the shields on.

Do them one at a time with a pan to catch the coolant.

After I replaced them I have not seen the intermittent Knock sensor code I was getting.
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Old Sep 3, 2010 | 10:02 PM
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Originally Posted by MotorCity_87_C4
Did you check to make sure the wire is connected good?
I plan to put it up on the Race Ramps this weekend and inspect the wiring before I buy parts. Also several other things to repair.

Originally Posted by jaa1992
Shoot I'd have to look at old receipts, IIRC it was around $50 each at O'Riley.
New ones had thread sealant on them, didn't need to add anything to them.
I used the open end of a combination wrench to pull them out.
IIRC it was 7 or 8 mm for the bolts holding the shields on.

Do them one at a time with a pan to catch the coolant.

After I replaced them I have not seen the intermittent Knock sensor code I was getting.
I am figuring that mine are the originals from 1994. The engine has been out of the car at least twice, that I know of. Who knows what has happened to these sensors over the years. If the wiring checks out I may go ahead and replace as preventative medicine.

Last edited by jakers; Sep 3, 2010 at 10:09 PM.
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Old Sep 4, 2010 | 04:36 AM
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rock auto, $17 bucks shipped, one left though
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Old Sep 4, 2010 | 04:51 AM
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I've seen recommended to try and stick with AC Delco with regards to sensors.
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Old Sep 5, 2010 | 03:00 AM
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Also, try to nail the torque setting. Some guys tend not to pay attention to that saying all they do is screw it/them on. My thinking is 'why introduce an unknown variable'.

Torque 'em to spec; you'll sleep better, LOL

Jake
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Old Sep 5, 2010 | 06:34 PM
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Originally Posted by JAKE
Also, try to nail the torque setting. Some guys tend not to pay attention to that saying all they do is screw it/them on. My thinking is 'why introduce an unknown variable'.

Torque 'em to spec; you'll sleep better, LOL

Jake
Jakes right on this, I have heard many storys of knock sensors either not working, or not working properly if there not torqued to spec..WW
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Old Sep 6, 2010 | 10:16 AM
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Originally Posted by JAKE
Also, try to nail the torque setting. Some guys tend not to pay attention to that saying all they do is screw it/them on. My thinking is 'why introduce an unknown variable'.

Torque 'em to spec; you'll sleep better, LOL

Jake
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