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

Do knock sensors go bad over time?

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Old Nov 17, 2004 | 05:05 PM
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Default Do knock sensors go bad over time?

Title says it all...
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Old Nov 17, 2004 | 05:14 PM
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mine did

also the wiring at the connection of the knock sensor has a tendency to shrink back and expose the bare wires, over time.
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Old Nov 17, 2004 | 05:43 PM
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Yes
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Old Nov 17, 2004 | 07:35 PM
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Originally Posted by TankerVette
Title says it all...
with others that have said yes!

What year is your vette?

On some years the ESC module was too sensitive which could create false knocks

Jack
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Old Nov 17, 2004 | 09:17 PM
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...We got a '95 AT, 81,000 miles...

with...
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Old Nov 17, 2004 | 10:53 PM
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Mine went bad after 3 years(on a 1992).
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Old Nov 18, 2004 | 11:26 AM
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Okay, then... any ideas on how you can tell its bad?

-False Knock?
-Code?

Thanks, gents...
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Old Nov 18, 2004 | 11:42 AM
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in my '85 l98:
a Check Engine light, with a code 43...

code 43, means faulty knock sensor...

false knocks don't really have anything to do with a faulty sensor-
false knocks is more indicative of an ESC needed upgraded
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Old Nov 18, 2004 | 12:05 PM
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Well, gonna experiment until I find out for sure now... Gonna start a new thread...

Thanks for the input, folks!
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Old Nov 18, 2004 | 07:06 PM
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Originally Posted by Pete K
Yes



They definitely go bad. Had one go on my 91 Z28 one yaer, got the knock code and the car ran horribly due the the retarded timing
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