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How to Replace Engine Knock Sensor 1995-2000 Chevy Tahoe
How to Replace Engine Knock Sensor 1995-2000 Chevy Tahoe
Created on: 2012-03-23
Tools used
Electrical Tape
Needle nose pliers
Wire Cutters
7/8 Inch Wrench
3/4 Inch Wrench
1. Removing the Oxygen Sensor
Loosen the oxygen sensor with a 7/8 inch wrench
Attach a second wrench to the first for leverage if necessary
Pull out the oxygen sensor
2. Removing the Knock Sensor
Pull the wire and insulator off of the knock sensor
Pull the wire out of its insulator
Pull off the knock sensor
3. Connecting the New Wire
Strip the insulation off the new wire about 1/4 of an inch
Insert the wire end into the splice
Crimp the wire at the splice with pliers
4. Installing the New Wire
Insert the other end of the wire into the splice
Crimp the wire at the splice with pliers
Put on the wire insulator
Push in the knock sensor
5. Reinstalling the Oxygen Sensor
Put the oxygen sensor into place
Tighten the oxygen sensor with a 7/8 inch wrench
Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the Internet.
Hi, I'm Mike from 1A Auto. I hope this how-to video helps you out, and next time you need parts for your vehicle, think of 1AAuto.com. Thanks.
In this video on this truck we've got a code for a malfunctioning knock sensor, so we'll show you. We went underneath, investigated, and found that the wire was broken, so we just went out, got a new connection end and then spliced it back in and set it back up. Now the truck runs with no codes flashing.
Right up here is the sensor I will be replacing. I have a 7/8 inch fitting wrench. Put it up onto the O2 sensor. Then I'm going to use another wrench. Put it on there. That will give me some extra leverage. The exhaust is hot still. That will hopefully help me get some more . help it break free. It's not breaking free the easy way.
Right up in here, we can see this is our knock sensor. You can see the problem right off the bat. There is no wire. This is the insulation. Pull the wire out. There's the wire. The wire is broken. We'll just remove this. Squeeze here with both fingers. That comes off.
We've got a new connection. We're going to splice it on. We've got our wire stripped just about 1/4 of an inch off. Insert that into our splice. Take our crimping pliers and put a nice crimp in both the connector as well as the insulation. That's nice and secure. Here's my wire here. We've stripped off the same thing on the end. We'll insert that into our splice. This wire insulation actually really shouldn't be wired high on there. It causes too much stress on this wire, and that's why it broke in the first place. So, we'll wrap that back around. We'll just fast forward here a little bit as we just put that insulation onto the new wire. Tape it and plug it back in. Just position that insulation so it protects from chafing.
We hope this video helps you out. Brought to you by www.1AAuto.com, your source for quality replacement parts and the best service on the Internet. Please feel free to call us toll-free, 888-844-3393. We're the company that's here for you on the Internet and in person.
ESA53621
In Stock
Product Reviews
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4.27/ 5.011
11 reviews
5 Stars
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Bad or wrong sensor for my engine.
John
February 19, 2017
I received either a bad or wrong sensor for my 454. I went to the local NAPA and got one that works. A total waste of $25.00.. lesson learned.... I won't be using 1A auto parts again nor will I recommend them!
still have obd1 code 43
justin
May 1, 2017
while removing old knock sensor, the head stripped right off, tryed vice grips to remove the stripped bolt and theres no sign of it coming out. with the new sensor from 1aauto i had to locate a new hole in the block to secure it in. after doing so, the obd1 code 43 was still showing. faulty sensor? bad location on block? not sure, what i do know is i have both obd1 code 42 and 43, which points to the EST. time to search the web for information on that.
Knock censor
J
August 14, 2017
This will work perfect. Well packaged came in one piece.
Wrong parts great service
R
August 21, 2018
I purchased this knock sensor on the phone. Made a comment about two being listed and they assured me this was the correct one. I installed the sensor and the truck still threw codes. I did some research and found that this was the wrong part for my application. The black sensor is for a manual transmission and the white sensor is for a 4l80e auto. I bought the right sensor local and it solved the problem as expected. The service was good and they were helpful in getting the cost of the part refunded. They were all friendly and great to deal with if the knowledge was there it would have been a great transaction. I will try them again at some point but will be sure to do my research before ordering.
knock sensor
stephen
September 5, 2019
sensor worked as it should. saved me half what local parts stores price.
Get your money worth
Jesus
April 2, 2020
Went right on so far so good. Probably better than the stock OEM
Knock sensor
Dan
April 23, 2020
Exactly what I needed exactly what I ordered showed up in a timely fashion very happy
So far impressed
Leslie
December 24, 2020
exactly what I needed and a great price and I received it very quickly I was super satisfied with the business it was very professional and done accordingly
Houston
August 21, 2021
Great
BEST PRICE For Quality Product
Dale
April 1, 2022
VERY GOOD HIGH QUALITY Product at the BEST PRICE!
Cold start knocking
Mark
March 17, 2023
My engine runs much better on cold start
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