knock sensors?
12 Second Club
Joined: Jul 2009
Posts: 197
Likes: 1
From: scranton
when i changed my KS they were rusty......the infamous water in the wells.....and i did not catch it at the time.......the connectors ends on the harness were rusty also......when i switched over to ac/delco KS i put in a new harness
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On The Tree
Joined: Feb 2013
Posts: 110
Likes: 1
From: Lancaster, CA
What everyone else has said about the cheep KS from auto zone is true. I had the same issue, then I swapped them for the AC Delco ones and had no issues since. Also, to keep them from rusting you may want to use some RTV on the plastic covers to keep them from getting any more moisture in there, it's worked for me so far.
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I actually just had the knock sensor code pop up on my car a few days ago as well.
Is replacing both sensors, harness, & doing the RTV around the sensors the best way to go to cover all the bases when doing the repair?
Do '98 cars need to go with the '99-'02 sensors (GM Part No. 10456603) & harness? (GM Part No. 12601822)
Is replacing both sensors, harness, & doing the RTV around the sensors the best way to go to cover all the bases when doing the repair?
Do '98 cars need to go with the '99-'02 sensors (GM Part No. 10456603) & harness? (GM Part No. 12601822)
Last edited by M3xpress; Apr 24, 2013 at 10:59 AM.
I actually just had the knock sensor code pop up on my car a few days ago as well.
Is replacing both sensors, harness, & doing the RTV around the sensors the best way to go to cover all the bases when doing the repair?
Do '98 cars need to go with the '99-'02 sensors (GM Part No. 10456603) & harness? (GM Part No. 12601822)
Is replacing both sensors, harness, & doing the RTV around the sensors the best way to go to cover all the bases when doing the repair?
Do '98 cars need to go with the '99-'02 sensors (GM Part No. 10456603) & harness? (GM Part No. 12601822)
Yes, replace both sensors and use rtv on the rubber plug sealing surface. I didn't do the harness, but mine was in ok shape. If you're in there, might as well do the harness if you can get it for a good price thoug.
I don't know about the part numbers .
This comes up as replacement for 1998-2002 knock sensors:
ACDELCO Part # 2133521
Alternate/OEM Part Number(s): 10456603, 12589867, 213362
www.rockauto.com
ACDELCO Part # 2133521
Alternate/OEM Part Number(s): 10456603, 12589867, 213362
www.rockauto.com
TECH Enthusiast
Joined: Mar 2009
Posts: 522
Likes: 0
From: West Chester, PA
I replaced mine last week and I still have the code. It comes on after the cars second start up... I can literally drive 50-100 miles without the code reappearing, but I can't even get out of my neighborhood (and I am the second to last house to the road!!!) without the code going back on.
Sadly trying to beat a storm we ended up snapping off the OPSU and ran over to AA to pick up a new one while the RTV sat on the freshly installed sensors... Which I question is where the code may be reappearing from.
Is it possible that shifting around the valley cover with the knock sensors bolted and wired down could possibly jar the connection loose?
P.S- A swivel set of sockets makes this a BREEEZE!!!! I got to the very last bolt on the drivers side and ran into a snag, my sockets didn't fit back there!! It is a small ledge that hangs over the bolt, I am including a picture just for reference for you guys.
P.P.S- Check Amazon too, I got mine for $38 instead of the rockauto $41. (Talking about the AC/Delco's)
Sadly trying to beat a storm we ended up snapping off the OPSU and ran over to AA to pick up a new one while the RTV sat on the freshly installed sensors... Which I question is where the code may be reappearing from.
Is it possible that shifting around the valley cover with the knock sensors bolted and wired down could possibly jar the connection loose?
P.S- A swivel set of sockets makes this a BREEEZE!!!! I got to the very last bolt on the drivers side and ran into a snag, my sockets didn't fit back there!! It is a small ledge that hangs over the bolt, I am including a picture just for reference for you guys.
P.P.S- Check Amazon too, I got mine for $38 instead of the rockauto $41. (Talking about the AC/Delco's)
if you havent checked it yet the harness itself could be bad. it may have gotten pinched under the intake or just be bad. theyre about 50 bucks online so it may be worth a shot
TECH Enthusiast
Joined: Mar 2009
Posts: 522
Likes: 0
From: West Chester, PA
Yeah, I ordered a new one and that is the one I used. I still have the stock one and it looks fine, so hopefully this isn't going to be a long process of testing it lol
