knock sensor question
Thread Starter
Melting Slicks
Joined: Jun 2004
Posts: 2,939
Likes: 0
From: norfolk virginia
knock sensor question
check engine lite came on and since i was taking her to the dealer anyway i had them scan it and here is the question. they said the knock sensors were causing the lite, although i havnt washed the engine the tech said often times moisture gets down under the manifold and causes corrosion at the terminal connection which can be the problem. he said you (meaning me) could clean them and may be okay but they recommend replacing them to the tune of around 600 bucks
i appreciate your input
i appreciate your input
Race Director
Joined: Dec 2002
Posts: 10,233
Likes: 21
From: Baltimore suburbs Maryland
I just replaced both myself- if you are somewhat handy, you can do it. Just need to move the intake manifold. You can get Wells aftermarket sensors for about $50 each (there is 2 of them).
Thread Starter
Melting Slicks
Joined: Jun 2004
Posts: 2,939
Likes: 0
From: norfolk virginia
Race Director
Joined: Dec 2002
Posts: 10,233
Likes: 21
From: Baltimore suburbs Maryland
Local auto parts store like Pep Boys, Autozone, Advanced Auto, or if you prefer OEM your dealer or www.gmpartshouse.com. GM used this sensor in other engines such as cadillacs and saturns.
You can look it up at www.autozone.com. On my 98 there were two different versions of knock sensors which I didnt know which it was until I removed the sensor from the vehicle. In 2002 I *think* they got it down to just one sensor version.
I had to go to two different stores in order to get the sensors. One from autozone and the other from a local store called salvo auto parts.
You can look it up at www.autozone.com. On my 98 there were two different versions of knock sensors which I didnt know which it was until I removed the sensor from the vehicle. In 2002 I *think* they got it down to just one sensor version.
I had to go to two different stores in order to get the sensors. One from autozone and the other from a local store called salvo auto parts.
Thread Starter
Melting Slicks
Joined: Jun 2004
Posts: 2,939
Likes: 0
From: norfolk virginia
Local auto parts store like Pep Boys, Autozone, Advanced Auto, or if you prefer OEM your dealer or www.gmpartshouse.com. GM used this sensor in other engines such as cadillacs and saturns.
You can look it up at www.autozone.com. On my 98 there were two different versions of knock sensors which I didnt know which it was until I removed the sensor from the vehicle. In 2002 I *think* they got it down to just one sensor version.
I had to go to two different stores in order to get the sensors. One from autozone and the other from a local store called salvo auto parts.
You can look it up at www.autozone.com. On my 98 there were two different versions of knock sensors which I didnt know which it was until I removed the sensor from the vehicle. In 2002 I *think* they got it down to just one sensor version.
I had to go to two different stores in order to get the sensors. One from autozone and the other from a local store called salvo auto parts.
Le Mans Master
Joined: Nov 2005
Posts: 6,993
Likes: 25
If your going to do it, you'll need the gaskets too. When I replaced mine, the rear one had oil in it so I replaced the wellplugs, the valley gasket and the connector for the 2 sensors while I was down there. Probably $150-$200 in parts total.
Pro
Joined: Jan 2005
Posts: 712
Likes: 0
I did mine on my 98,I used silicone around the sensors and base gaskets to keep the oil out with the original gaskets being used.I also rplaced the harness as mine was pinched from the intake manifold.It took an afternnon with a set of hand tools and the fuel line disconnect tool set.It was a fairly easy job.Jer
