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88chevy 06-18-2006 09:19 PM

knock sensor
 
where is the knock sensor located on 1999 chevy silverado 5.3L vortec?

spankys rod shop 06-18-2006 09:54 PM

You should find (2) just under the intake manifold with the plug in the rear. one plug on a small harness that leads to both sensors.

88chevy 06-18-2006 09:57 PM

so its in back of the intake? how does it look like?

spankys rod shop 06-18-2006 10:00 PM

mabe it would be quicker to tell me what you are trying to do?

88chevy 06-18-2006 10:04 PM

i went to advanced auto parts so they could scan my truck with the diagnostic code thing and it said that there was a problem with the knock sensor and im tryin to look for it. and just to make sure what are the side effects of a no good knock sensor

spankys rod shop 06-18-2006 10:13 PM

I guess there is a first for everything, I've never personally seen a bad knock but its verry possible, the effects of a bad knock sensor could vary like timing retard and such. But there are 2 knoc sensors screwed in to the knock sensor plate which is located under the intake, they are pluged in to a small harness that leads to the rear of the intake, its a small plug mabe you could just un-plug and plug back and try scan again or re-boot comp. what is it acting like?

88chevy 06-18-2006 10:19 PM

when i stomp it at a dead stop it doesnt respond like it used to before it would take off burnin out alot and accelarate quick now it jus takes off really slow and revs up super slow what do u think?

spankys rod shop 06-18-2006 10:25 PM

I gotta go for now but try to find someone with a tech II scanner with a good understanding how to use it and i'm sure you'll get to the bottom of it.

StevenC 06-18-2006 11:56 PM

You could have another issue causing a problem and making the engine ping setting off the knock sensor. Like a chain reaction it will all go down hill. I personally never have seen a bad knock sensor.


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