Replace Knock Sensor just because removed?
Thread Starter
Melting Slicks
Joined: May 2003
Posts: 2,076
Likes: 281
From: Dyersburg TN
Replace Knock Sensor just because removed?
I pulled knock sensors in order to drain coolant. They had not malfunction before and I don’t know if I can put them back or if they should be replaced with new ones simply because they were removed. Also, does anyone know the torque specifications for a knock sensor? They are a pain for big guy to get to, and I don’t want to do this again.
Drifting
Joined: Jul 2009
Posts: 1,258
Likes: 98
From: Ashland PA
2021 C4 of the Year - Modified Finalist
I believe 14 ft lbs for knock sensors according to my 90 FSM
I recently refreshed my 383 and put in a new knock sensor and had all sorts of false knock
ended up going back to the old one
on another occasion a brand new knock sensor died in 10 minutes
make sure you get AC Delco knock sensor your chances are better than one of the cheap ones.
I recently refreshed my 383 and put in a new knock sensor and had all sorts of false knock
ended up going back to the old one
on another occasion a brand new knock sensor died in 10 minutes
make sure you get AC Delco knock sensor your chances are better than one of the cheap ones.
Racer
Joined: Sep 2021
Posts: 483
Likes: 157
The ones you pulled should have a good amount of crud on the tips. I have replace a ton of stuff on my 95, knocks included. Working on my 93 and prices have certainly gone up. Thankful suppliers are still selling oem or better stuff.
Racer
Joined: Sep 2021
Posts: 483
Likes: 157
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Thread Starter
Melting Slicks
Joined: May 2003
Posts: 2,076
Likes: 281
From: Dyersburg TN
Le Mans Master
Joined: May 2005
Posts: 7,354
Likes: 2,279
From: Central Maryland
I've had the originals out of mine several times, and have always spun them right back in after coolant drain was completed. Never saw a good reason to replace them. YMMV.
Live well,
SJW
Live well,
SJW