Where is the knock sensor??

[LEOMAC23]

Hey just wondering where the kock sensor is located on the 3.8 motor??

[97rs4life]

Re: Where is the knock sensor??

there are two, one on each side of the engine and they are on the side of the block

[LEOMAC23]

Re: Where is the knock sensor??

so like ,drivers side and passenger side?? what exactly do they look like??

[HeadyFirebird'00]

Re: Where is the knock sensor??

i have been trying to find these things for years. i have been under there looking for long time periods too. but it doesnt help when you dont know what your looking for

[FuzzKill]

Re: Where is the knock sensor??





There is one in the same position on the other side of the block as well. 1 wire connection. Just under the freeze plugs.

With how cramped it would be with all the accessories, crossmember, and steering, it is probably pretty hard to find just looking under the car. I can't really say, my motor isn't in a Camaro :p

[RadRacer]

Re: Where is the knock sensor??

I know the passenger's side is accessible from under the car; I'd imagine the driver's side is too.

[LEOMAC23]

Re: Where is the knock sensor??

Right above the circle in the picture there looks to be two plugs there,i have a wire coming out of on of them plugs on my passenger side,this isnt it,is it??

[FuzzKill]

Re: Where is the knock sensor??

No thats a block heater if you have a electrical connector coming out of the freeze plug. The knock sensor looks exactly like the second picture with the threaded part screwing straight up into the block. Knock sensor has 1 wire per side. The knock sensor is right in the middle of the red circle :p

[FuzzKill]

Re: Where is the knock sensor??

Found some better shots digging through my build pictures

[Meatyshells]

Re: Where is the knock sensor??

why do you want to know where they are?

[LEOMAC23]

Re: Where is the knock sensor??

because i think my car is pinging,im getting a rattleing under load,and wanted to check them,my haynes manual says to check the resistance value of them but after getting under the car and finding them i see that theres only 1 input to it so what do i measure the resistance between?? i also took the car for a run with it disconnected and felt no difference,it didnt get worse and i still had no ses light??

[bigbrian442]

Re: Where is the knock sensor??

what do i measure the resistance between???

Ground. Just like the PCM does.

[LEOMAC23]

Re: Where is the knock sensor??

yeah i just figured that,thanks, im getting 100k ohms so i geusse its not that one,the other one is hard to get at so i dont know what to do about this rattle/ping noise, guess ill have to let the pros handle it.

[bigbrian442]

Re: Where is the knock sensor??

Try running a tank of 93 octane and see if it stops. That's about $5 more then a tank of 87.

[LEOMAC23]

Re: Where is the knock sensor??

yeah that was the first thing i tried,didnt work.