knock sensor patrs
Thread Starter
Instructor
Joined: Dec 2005
Posts: 147
Likes: 3
From: Howell NJ
knock sensor patrs
I am once again getting the P0327 code. I replaced the sensors and harness 2 years ago. After looking at a couple of older threads on the forum it was mentioned only GM sensors from the dealer should be used. Is that still the case? All of the major parts outlets seem to sell AC Delco sensors. Are they genuine or knock offs? It was an old thread so I am just wondering if correct parts availability has changed.
Thread Starter
Instructor
Joined: Dec 2005
Posts: 147
Likes: 3
From: Howell NJ
I just looked at some recent threads and they seem to also say NAPA is the best choice. I went to the NAPA site and they have a single unit for around $80 and a kit for around $92.
The kit is apparently Dorman sensors. I am assuming the recomendations are for the individual units and not the kit, is that correct?
THanks
bob Schmidt
The kit is apparently Dorman sensors. I am assuming the recomendations are for the individual units and not the kit, is that correct?
THanks
bob Schmidt
Moderator, Tech Contributor
Joined: Sep 2013
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From: Cape Coral, Florida
I just looked at some recent threads and they seem to also say NAPA is the best choice. I went to the NAPA site and they have a single unit for around $80 and a kit for around $92.
The kit is apparently Dorman sensors. I am assuming the recomendations are for the individual units and not the kit, is that correct?
THanks
bob Schmidt
The kit is apparently Dorman sensors. I am assuming the recomendations are for the individual units and not the kit, is that correct?
THanks
bob Schmidt
I’d STAY far away from any electrical components by Dorman !!…try Rock Auto too.
Racer
Joined: May 2021
Posts: 384
Likes: 52
Never change the OEM knock sensor if they are good ... because my intake manifold are off l decided to change my knock sensor to Napa because the new OEM AC Delco are defective... whatever ldo l keep getting code with Napa ...after removing intake manifold multi times I decided to put back my original OEM knock sensor when's l put it back the code are disappear ...you will never find knock sensor that sty 20 years as original OEM the one comes with the car
Thread Starter
Instructor
Joined: Dec 2005
Posts: 147
Likes: 3
From: Howell NJ
Thanks for the warning on Dorman.
The original units are long gone. THe sensors in there now are the third set, and they are starting to throw the P0327 code.
Thanks for the input
Bob Schmidt
The original units are long gone. THe sensors in there now are the third set, and they are starting to throw the P0327 code.
Thanks for the input
Bob Schmidt
Racer
Joined: Feb 2017
Posts: 317
Likes: 140
From: South Carolina
I've gone down this rabbit hole and went through nearly all sensors on the market.
Bench testing sensors with a Vice and measuring their resistance out the box will also help make sure you don't have a bad one.
I've done 3 mountain weekends and 4 track weekends with probably 15k street miles as well without issue
Sensors the DKS238
https://www.napaonline.com/en/p/ECHDKS238
There is a different sensor that has more letters/numbers from NAPA brand and it outputs less voltage and causes issues just like the Dorman sensors.
Harness:
https://www.napaonline.com/en/p/TEETRH102
Just make sure the harness is tucked and taped well before you put the intake manifold back on.
Bench testing sensors with a Vice and measuring their resistance out the box will also help make sure you don't have a bad one.
I've done 3 mountain weekends and 4 track weekends with probably 15k street miles as well without issue
Sensors the DKS238
https://www.napaonline.com/en/p/ECHDKS238
There is a different sensor that has more letters/numbers from NAPA brand and it outputs less voltage and causes issues just like the Dorman sensors.
Harness:
https://www.napaonline.com/en/p/TEETRH102
Just make sure the harness is tucked and taped well before you put the intake manifold back on.
Tech Contributor
Joined: Jan 2007
Posts: 19,353
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From: Dyer, IN
I am once again getting the P0327 code. I replaced the sensors and harness 2 years ago. After looking at a couple of older threads on the forum it was mentioned only GM sensors from the dealer should be used. Is that still the case? All of the major parts outlets seem to sell AC Delco sensors. Are they genuine or knock offs? It was an old thread so I am just wondering if correct parts availability has changed.
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Le Mans Master
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From: Florida
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I installed ACDelco sensors from Summit and a Dorman harness. Works fine.
Parts for this discussion are consistent with tires and oil choices…
https://www.summitracing.com/parts/ADO-213-3521
https://www.summitracing.com/parts/RNB-917-033
Parts for this discussion are consistent with tires and oil choices…
https://www.summitracing.com/parts/ADO-213-3521
https://www.summitracing.com/parts/RNB-917-033
Melting Slicks
Joined: Dec 2018
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From: Orange County, CA
Eh, not really... many people including myself have had issues with AC Delco knock sensors over the last few years. I couldn't say if the ones I bought were "counterfeit", but I don't think Rock Auto is in the business of reselling counterfeit parts.
Thread Starter
Instructor
Joined: Dec 2005
Posts: 147
Likes: 3
From: Howell NJ
The sensors in there now are AC delco. They went 2 years so they were not bad, but apparently marginal, unless there is a moisture issue which I will find out when I pull the manifold.
Thanks for the suggestions. I will go with the suggested part since there seems to be good consensus on it.
Thanks again
Bob Schmidt
Thanks for the suggestions. I will go with the suggested part since there seems to be good consensus on it.
Thanks again
Bob Schmidt
Tech Contributor
Joined: Jan 2007
Posts: 19,353
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From: Dyer, IN
Glad it worked out for you, but Dorman parts in general have a questionable quality history. Educate yourself with posts over the last 15 years, and you will find knock sensors are not analogous to tire/oils choices.
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Evidently many consumers who commented on Summit have a different opinion than the many people of which you refer. Perhaps Summit is luckier than Rock Auto.
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Oh, and the Dorman harness is working just fine. I must be on a hot streak.
Last edited by vette4fl; Jun 17, 2024 at 04:32 PM.
Tech Contributor
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From: Dyer, IN
You have no clue about my experience or education. You do not present one fact, a single statistic, other than casting a sweeping generalization about one of the most successful aftermarket suppliers in the world. They have been in business over 100 years, manufacture tens of thousands of products. Evidently they maintain a strong following…
Oh, and the Dorman harness is working just fine. I must be on a hot streak.
Oh, and the Dorman harness is working just fine. I must be on a hot streak.
. Any manufacturer at any time is capable of a quality escape(s). Depending on the market consumption, it may take months to years before the problem is identified. Then it is up to the manufacurer if they can isolate it to a production run, batch, etc. They may or may not do a recall of product from distribution. It is absolutey possible that you got a good Dorman harness, and 50 people got a bad one. Same with knock sensors.I hope your day gets better. Keep your chin up...Dorman will be in business long after both of us are gone.
Melting Slicks
Joined: Dec 2018
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From: Orange County, CA
Eh, you just made my point. People will debate this, because they all have their own opinions, bias, whatever. This is a forum after all.
Evidently many consumers who commented on Summit have a different opinion than the many people of which you refer. Perhaps Summit is luckier than Rock Auto.
Evidently many consumers who commented on Summit have a different opinion than the many people of which you refer. Perhaps Summit is luckier than Rock Auto.
You do realize that most of the reviews on this Summit Racing listing are older, right? And my post literally says over the last few years. In fact, of the 79 reviews there, only 15 are from the last few years.
Just like @lucky131969 pointed out, Any manufacturer at any time is capable of a quality escape(s).
Also, how many of the recent positive reviews on Summit are related to the C5 ? I counted zero over the last few years. Not saying it would be different from other LS-based vehicles, but it could be.
And for fun, 2 negative recent reviews. Did you know the reviews can be sorted chronologically?
EDIT: Just went through my records, and it turns out the AC Delco knock sensors I tried out (almost 2 years ago) WERE ACTUALLY FROM SUMMIT! Not Rock Auto like I said before. I may have just invalidated your whole point?
Last edited by MetalMan2; Jun 17, 2024 at 06:31 PM.
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I bought and successfully used parts from two of the premiere automotive parts manufacturers…and they worked. I predicted that would be debated. It was. Whew. Goodnight fellas.
Last edited by vette4fl; Jun 17, 2024 at 09:24 PM.
Melting Slicks
Joined: Dec 2018
Posts: 2,640
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From: Orange County, CA
My statements were clear and concise. I even warned of rhetoric to follow. This is a case study of the inevitable debate over even a personal experience.
Pointing out a companies long successful history attests to their reputation and standing in their market. Then, when tangible examples are presented to support a position, the response is in the form of an outlier as evidence that the other 97% must be invalid.
...
I bought and successfully used parts from two of the premiere automotive parts manufacturers…and they worked. I predicted that would be debated. It was. Whew. Goodnight fellas.
Pointing out a companies long successful history attests to their reputation and standing in their market. Then, when tangible examples are presented to support a position, the response is in the form of an outlier as evidence that the other 97% must be invalid.
...
I bought and successfully used parts from two of the premiere automotive parts manufacturers…and they worked. I predicted that would be debated. It was. Whew. Goodnight fellas.
AC Delco knock sensors have presented a large sample size of apparently defective parts (based on them causing knock sensor codes that didn't exist prior to installing those parts) over the last 2 years. Regardless of your own experience with AC Delco's "successful history" it doesn't change the fact that many of us had wasted money while experiencing otherwise.
Since you seem unaware... these are just some examples of what I'm referring to across Corvette Forum. Note that each listing could contain more than one person's experience.
- https://www.corvetteforum.com/forums...ck-sensor.html
- This was sort of our original discovery post on the issue. Multiple people posted there about the issue. Some people replaced multiple sets of AC Delco knock sensors, all not working, until they went with something different (i.e. NAPA) and their cars were fine.
- https://www.corvetteforum.com/forums...ock-senor.html
- https://www.corvetteforum.com/forums...nsor-woes.html
- https://www.corvetteforum.com/forums...reappears.html
- https://www.corvetteforum.com/forums...post1607874557
EDIT: I see you edited your post since I started typing my response (gradually while doing my kids' bedtime routine). Don't really feel like un-quoting your post from how it was before.
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Oh boy, I've triggered you by not doing the homework for you. Sorry about that sir. I see other than your anecdotal experience, and your cheerleading for the Dorman brand, you offer no evidence either . Any manufacturer at any time is capable of a quality escape(s). Depending on the market consumption, it may take months to years before the problem is identified. Then it is up to the manufacurer if they can isolate it to a production run, batch, etc. They may or may not do a recall of product from distribution. It is absolutey possible that you got a good Dorman harness, and 50 people got a bad one. Same with knock sensors.
I hope your day gets better. Keep your chin up...Dorman will be in business long after both of us are gone.
. Any manufacturer at any time is capable of a quality escape(s). Depending on the market consumption, it may take months to years before the problem is identified. Then it is up to the manufacurer if they can isolate it to a production run, batch, etc. They may or may not do a recall of product from distribution. It is absolutey possible that you got a good Dorman harness, and 50 people got a bad one. Same with knock sensors.I hope your day gets better. Keep your chin up...Dorman will be in business long after both of us are gone.