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EVERY Chevy KNOCKS Sensor Testing Tips!
Рет қаралды 4,023
Күн бұрынChevy Vortec V8 Knock sensor testing. Chevy Silverado truck engine how to test knock sensors and knock sensor wiring.
Vortec V8 BAD knock sensor diagnostic testing. LS engine knock sensor replacement tips.
• EVERY Chevy Engine KNO... TOOLS & PARTS BELOW:
These sensor testing tips work for: 1999-2007 Chevy Silverado, Suburban, Avalanche, Tahoe, GMC Sierra, and Yukon Denali trucks.
The DTC sensor codes were P0327 and P0332
This is a 2006 Chevy Silverado with a Vortec 4.8 V8 engine and
2002 Chevy Avalanche 5.3 Vortec V8.
Parts & Tools:
Multimeter: amzn.to/3UvL8KY
Knock Sensors: amzn.to/3JjToZu
Intake Gaskets: amzn.to/2XLjTz6
Wiring Harness: amzn.to/3oMVzJ2
Timestamps:
0:00 Intro
0:16 DTC Codes
0:50 Test OLD Knock Sensors Installed
2:43 Test NEW Knock Sensors
3:24 Test BAD Knock Sensors Installed
4:30 Test BAD Knock Sensors Removed
5:16 Knock Sensor Wiring Harness
7:01 Test Wiring Harness
7:51 Outro
**Disclaimer: Matt's Shop shall not be responsible or held liable for any property damage, injury, or financial loss, costs, or expenses that may occur from the purchase or use of the products featured in this video and or attempting to duplicate repair procedures. This is for entertainment purposes only. No warranties express or implied.**
As an Amazon Associate I earn from qualifying purchases.
#mechanic #customerstates #chevy #silverado #truck
@MattsShop 3 ай бұрын
This is how I test these Chevy Vortec V8 engine knock sensors! Multimeter: amzn.to/3UvL8KY Knock Sensors: amzn.to/3JjToZu Intake Gaskets: amzn.to/2XLjTz6 Wiring Harness: amzn.to/3oMVzJ2 As an Amazon Associate I earn from qualifying purchases.
@longlivechina7538 2 ай бұрын
Greatest youtube mechanic, deserves 1000 wives
@MattsShop 2 ай бұрын
Thank you!!
@moi1069 3 ай бұрын
cmon matt i need them avalanche videos i truly find the useful to fix up my own z71 05 avalanche
@Discretesignals 3 ай бұрын
If the knock sensor isn't putting out a normal engine noise waveform as the engine is running the PCM sets those codes on that model. Knock sensors generate AC voltage depending on how much noise they pick up. Testing a knock sensor output with an ohm meter is inconclusive at times. You really should use a lab scope to not only see if it generates a signal, but also if the signal's amplitude is high enough. I've run into new OEM and aftermarket sensors that are defects that don't put out enough amplitude. If you're a DIY it probably doesn't matter much, but as a tech you want to fix it right the first time.
@MattsShop 3 ай бұрын
You are right. Most people don't have an oscilloscpe to check the waveform. If they are reading really low or high ohms generally there is a problem.
@graysonsgarage5157 Ай бұрын
Have you ever had any issues with the codes coming back even though the knock sensors are new OEM and the harness was replaced along with them?
@MattsShop Ай бұрын
A lot of people keep having this problem. I haven't had it happen, but you gotta use Delphi sensors. Some people complain of counterfeit sensors. Maybe broken wires behind the sensor harness.
@graysonsgarage5157 Ай бұрын
Further to that, do you usually disconnect the battery when doing this job? I was curious is having the PCM reset itself would cause it to relearn all the values of all the sensors, and that's why you've never had any knock sensor codes come up on the allegedly not genuine ACDelco sensors.
@JesusRodriguez-nx8zi 3 ай бұрын
I commented your other video about my CEL goes on and off with knock sensor codes.. I did the multimeter test to wire harness and both sensors read great. So you’re saying they can still read good but actually be bad? Installed them Oct. 2023
@MattsShop 3 ай бұрын
The only true way to see if they are bad or not is to replace them and test them, but they can read good and still be intermittent.
@1luxuryliner440 3 ай бұрын
Checking it out man
@abrune88 10 күн бұрын
At 1:47 when you are testing the new knock sensor out of the truck, what do you have the other (positive lead) connected to? Thanks!
@MattsShop 9 күн бұрын
Positive goes in the center of the knock sensor. Negative goes to the body of the knock sensor or a ground.
@abrune88 9 күн бұрын
@@MattsShop thanks for the quick Reply!
@1luxuryliner440 3 ай бұрын
See ya on the next one man I m follow ING man
@MattsShop 3 ай бұрын
Laterrrrrr!
@louisvillalba7695 19 күн бұрын
@@MattsShopwhat about the voltage the ecm puts out how do I test that?
@user-uf8dn6ib6i 2 ай бұрын
Bro I got this code P0332 from a lifter tick. I fixed the lifter tick but the code is still there. What you think! P0332 only. Not P0327.
@A00011526 3 ай бұрын
Hello all. I have some questions. I have a 2004 avalanche 1500 4wd. Recently I start driving and after 5 minutes the security light turns on. Voltage drops completely and ac stops blowing cold. Also my key fob stops working. Then after awhile all the gauges drop to zero then some work and voltage goes up then down. This happens sometimes sometimes while just turning it on. And for the life of me I cannot find that little ground wire behind motor. Can you help please a s
@1luxuryliner440 3 ай бұрын
Mannn
@ricktaylor3748 3 ай бұрын
Learn how to speak English.
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