Chevy Knock Sensor 5.3 4.8 6.0 Replacement CODE P0332, P0327

These are the steps I took to replace the knock sensors on my truck, keep in mind this repair is relatively easy. You should consider buying the small harness that connects the sensors to the harness.
here is a link to the knock sensors and wiring harness at amazon (not my store)
amzn.to/2rWICQJ
Link to a set of intake gaskets
amzn.to/2rVB6GJ
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Due to factors beyond the control of Falcons Garage, I cannot guarantee against improper use or unauthorized modifications of this information. Falcons Garage assumes no liability for property damage or injury incurred as a result of any of the information contained in my video. Use this information at your own risk. Falcons Garage recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of Falcons Garage, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Falcons Garage.

[@FalconsGarage]

here is a link to the knock sensors and wiring harness at amazon (not my store) amzn.to/2rWICQJ Link to a set of intake gaskets amzn.to/2rVB6GJ

[@X80057X]

Thanks for being quick and to the point not making me listen about everything else going on in your life for 25 minutes. Good video.

[@FalconsGarage]

Glad to help

[@txjackazz]

Every time I watch a video and it starts with them talking about another car or driving for 10 min. Automatic thumbs down!!

[@d.a.m.m5285]

I was thinking the same thing. And not to mention he didn’t explain how to put everything back together because it’s exactly the reverse of taking it off, so for those who needed that help could’ve watched the longer 22-30 min videos of this procedure 😂 🎯

[@dustinrichard3402]

Thank you bud. Just threw this code for my 04 tahoe.

[@WolfHreda]

I've replaced that oil pressure switch. What a bastard.

[@codyweien4513]

It's easy af you're just not a good mechanic

[@andrewbryant9214]

@@codyweien4513 if you use "af" youre likely not a mechanic

[@codyweien4513]

@@andrewbryant9214 I respect that.

[@autodidact7127]

I just replaced that oil pressure sender, likely thats what caused the knock sensor code. moving 100k cables can screw up the wiring.

[@brentbean2792]

@@autodidact7127 this fixed your p0332 code from lose of power sending to the knock sensor?

[@jamessanchez5567]

Is it best to use AC Delco parts

[@user-uj3zk2cx8t]

Yes it is in this case

[@doctube2020]

Thanks for the video. Any reason to replace the lifter valley cover gasket? Is that a common oil leak problem?

[@txjackazz]

Good job. Might have to be doing this soon. Great video

[@FalconsGarage]

Go for it!

[@edmillan4875]

Great video. How many hours did it take you to replace the knock sensors and harness?

[@FalconsGarage]

depending on experience from 1hr to 2 hours

[@donlance4803]

Thanks, pretty straightforward video.

[@smokingmeatanddiybydaniel8953]

I did all this to my 2001 Silverado but the same 0332 and 0327 codes keep coming on , and yes I installed ac delco parts , and I have checked the sensor they do work and I have ohmed every wireharness all the way to the pcm , everything checks out good , why do I keep getting this code could it be a o2 sensor out

[@FalconsGarage]

I once had a similar issue and when I went back in under the intake i noticed that were the knock sensor was bolted into had a small crack, at that point I had to replace the entire engine because of a bad block. Not saying thats your problem but you could double check that.

[@smokingmeatanddiybydaniel8953]

ok

[@Chosen-js2og]

I changed both knocks and harness but it still idles low when I come to a stop, Sometimes it will shut down. it starts right back up. What else can I do??

[@FalconsGarage]

never seen that bad knock sensor do that before ... dont think they were bad to begin with ... I would check for a intake/vacuum leak and check how dirty the throttle body is

[@Chosen-js2og]

@@FalconsGarage Thanks, I changed knock sensors bc check engine light came on. when they ran test. knock sensors bad, but now everthing is good , except when you stop occasionally it will fall below 500rpm & then shut off.

[@FalconsGarage]

that makes more sense now .... yes check for intake leaks and how dirty your throttle body is ... I would start there

[@andrewbryant9214]

low oil pressure will cause that.

[@SlickMcVega]

is there a gasket under that valley pan that can leak? im doing all this to fix leaks and want to replace it if so.

[@FalconsGarage]

Don Ammon yes there is. You can get it at the dealer or a parts department.

[@SlickMcVega]

Any precautions taking it off? I cant find any videos on it. Is it just remove the sensors and vally pan bolts, pry off, replace gasket and i think knock sensor o rings, and replace? Thx for quick response bud

[@FalconsGarage]

Don Ammon nothing to special about it. Just take off the sensors remove the bolts like you said. Make sure when you buy the gasket you get the gaskets for the wells they are very similar to the spark plug well gaskets from a calavera cover. Clean out the area and replace. Also try to to get trash or gamer particles inside the engine.

[@Teamvenomracing]

great video! thank you.

[@FalconsGarage]

Glad I could help!

[@zoeyhall6522]

Was this to fix a low oil pressure issue? Because that's why I watched it.

[@paint3ball]

No. It was to replace bad knock sensors/their harness

[@seangowan7441]

Will this fix my knocking sound?

[@billargueta5458]

What parts are necessary to repair this? Knock sensors and wire harness. What gaskets. Thank you.

[@FalconsGarage]

yeah thats really it

[@micc4044]

After taking those coolant lines off do you need to bleed or just refil the coolant?

[@FalconsGarage]

yes.. refill and check

[@asmith8898]

Which is bank 1 and 2?

[@FalconsGarage]

Bank 1 is on the front ... Bank 2 is on ht back closer to the fire wall.

[@asmith8898]

@@FalconsGarage thought so. Thanks. That was fast than I thought

[@jerryperez6670]

Useless

[@BOXDABOXERful]

Cool video. Straight to business

[@highstrung_lifestyle]

Awesome video man no bullshit straight to the point keep up the good work 🤙

[@justinblanchard2746]

Thank you!!! I have that job coming up. Great tip on the oil pressure switch!!

[@FalconsGarage]

Good luck!

[@jesuspena5366]

Best video I’ve seen on this subject, good job explaining man

[@FalconsGarage]

I appreciate that!

[@TheWriter86]

Man, insightful video bro! Thanks! This code popped up on my Silverado so I gotta change it soon.

[@FalconsGarage]

Glad I could help

[@DWESENTERPRISE]

I have this cel for a chevy express... I hate how this engine is so tucked in. I don't wanna do it! Lol. What do you think it would cost at a shop vs doing it myself?

[@FalconsGarage]

ON THAT TRUCK .. AROUND $300 OR SO

[@DWESENTERPRISE]

@@FalconsGarage thanks! For the video and reply!

[@mrsmel269]

great work

[@danielparham2595]

My code p0332 is a evap and the knock sensor came up as P0446 you said your code was p0332?

[@FalconsGarage]

Nope. P0332 is a knock sensor code for chevy.

[@toddjr007]

Thanks man.. I needed to see this.

[@mariguas5700]

Cool video, I changed both of my knock sensors and hardness I have a 2002 silverado 5.3l, and almost to 1000 miles later i got the same code for the knock sensors. Even thought the knock sensors and hardness are new. What should I do next? Can you help me out on that? Please and thanks👍🏻

[@FalconsGarage]

Andres Donato did you torque them to the correct specs? Not sure what it is out of the top of my head but it’s very important with this sensors. Also did you use dealer parts?

[@mariguas5700]

Yes they were torque down to the right specs, and parts were from the dealership

[@FalconsGarage]

if it takes a year for the code to come back .. its a little harder to pin point the issue .. because it could still be the sensors .. or maybe also a wiring issue

[@alejandrotapia5762]

@@mariguas5700did u ever fix the problem? having the same problem.

[@mariguas5700]

@@alejandrotapia5762 Hello, yes it's going to sound wierd but I was driving to the shop to have it checked, and check engine light went away. Ever since that day(knock on wood) it's been running fine. No more check engine light

[@adolfomolina3311]

Excellent job 👏

[@FalconsGarage]

Thank you very much!

[@johnknoll7109]

Thx Helped alot.

[@FalconsGarage]

Glad I could help!

[@rubenmagdaleno2382]

I replaced 3 times and the engine code is coming back any advice.

[@10krms54]

Whats a job like these cost need it done on mines

[@JP-Swag]

What did you use to clean it?

[@FalconsGarage]

break cleaner

[@itshill6404]

My 02 Avalanche sputters when I accelerate.. changed plugs, wires and filter.....will the knock sensor cause this issue or something else

[@d_manoil1647]

Good video

[@TREEOFTHEFIELD]

Thank you brother!

[@ernie7065]

Re the first sensor ... mine sets off the engine symbol... but then a few days later the red image light is no longer lit. I am sometimes in Naples FL and sometimes in Mich. Any advice?

[@venom0789]

So you need by two knock sensors and one harness wire set and intake manifold gaskets set right

[@FalconsGarage]

yes

[@FreedOrDieTrying]

is it the same for 2007 Silverado?

[@FalconsGarage]

basicly .... mist have a couple of more connector but its the same concept.

[@vags743]

Nice job

[@rreed336]

Changed those sensors on my 01 yukon 4.8, drove it a week and the code came back. Definitely not pulling that intake again. Looking for a work around currently. This has to be a known headache for these LS engines/owners.

[@FalconsGarage]

did you torque the new ones to spec? did you use AC delco? I have had some BAD ones coming straight from dealer

[@METALMUNCHERS77]

Awesome thanks

[@avbracing]

My second sensor in the back. water got in it leaving it Rusty and corroded. Cant use any shocket to take out. Any helpful tips?

[@FalconsGarage]

bolt extractor?

[@blueleaf3406]

Did you reuse the intake gasket?

[@FalconsGarage]

NO.. I would recommend you get new ones ...

[@meatyklaws8774]

Roughly how many labor hours does this job call for?

[@avbracing]

Around 1 or 2 hour depending. If everything goes out right.

[@Victorgutierrez-bl5yl]

what was wrong with it

[@FalconsGarage]

bad knock sensors

[@marioalanis1855]

But was the engine nocking or what

[@fiveninegarage]

@@marioalanis1855 no bad knock sensors don’t mean the engine is knocking

[@vicreyes9237]

Thanx homie you made this look easy, I broke the vacuum inlet on top of the I take during the winter, will do these knock sensors once I get a replacement intake for my 2005 Denali XL.

[@markbigham5274]

Is the one closest to the firewall bank 2 knock sensor

[@paint3ball]

Yes but you should replace both anyway

[@sircampbell1249]

Relocate them to outside, less work

[@FalconsGarage]

lol

[@SUBSWITHNOVIDEOS-np5ey]

Thanks For the Video.

[@vitaliyubryanov8478]

The brand that you got Dade, that a good brand? I heard you should get dealer sensor but I don't want to spend money. Will the amazon ones be fine?

[@FalconsGarage]

I would suggest dealer ... or ACdelco

[@vitaliyubryanov8478]

@@FalconsGarage I can't spend that much money and in not going to keep the truck. Planning on selling it do you think the cheap part will get rid of the check engine light until I sell it soon?

[@FalconsGarage]

maybe.. but change the hardness too

[@vitaliyubryanov8478]

Thanks I really hope this fixes it and that it is not something else and I was wondering if it could be detecting knock and that's why there check engine, is that a possibility?

[@bm7087]

@@vitaliyubryanov8478 any chance you bought the cheapo senors?

[@memphismzrgs3522]

@Falcon’s garage I have a Chevy Silverado 2005 and have the same problem they put the scanner and it says the code P0327 and the mechanic charges me $ 875 for changing the two sensors what do you think about this?

[@FalconsGarage]

seems very high ... but it also depends on the average hourly wage for a mechanic where you live

[@memphismzrgs3522]

Falcon's Garage I live in San Francisco Ca

[@jesserousseau2481]

This is bs!! The knock sensor on my 98 on side of block!! This is bs

[@FalconsGarage]

Correct. Different year models will have it in different spots.

[@alisaleh4758]

Is dorman and dwd good quality?

[@FalconsGarage]

There ok .. but for this knock sensors would recommend dealer or ACdelco

[@alisaleh4758]

Falcon's Garage im getting p0327 on my 2004 tahoe 5.3 167k miles but need help I really confused where to start with local mechanics want $600+ for the fix and not sure if i just ignores it will do any damage to my truck, help plz

[@FalconsGarage]

600 to replace the knock sensors sound a bit excessive ..... if al the issue is bad sensors it will effect the fuel economy of the car maybe not much for you to notice but it will .... I CANNOT recommend that you just ignore it .... but maybe try other mechanics for quotes

[@alisaleh4758]

Thanks for your i ll buy the parts and pay mechanic for it how many hr of labor this fix takes ?

[@FalconsGarage]

I would have to check my work computer to know exactly but if I had to guess about 1.5 hrs total ... normally on this job "I" would charge about $100-150 in labor plus parts ..