There are two knock sensors on the 3.0
The location depends on which year model you have. Best found from underneath.
On the 2002 and 2003, one is on the front of the engine block and the other on the rear. Look underneath the exhaust manifold.
The trouble codes refer to #1 and #2. My guess is that the front one is #1.
The 03 Saturn Vue does not use a stand alone camshaft sensor. The system uses the ignition system as a sensor, tapping into the number one and four cylinder firing systems.
If the car has ABS there will be sensors there, byt ABS is optional. Here is a picture of the hub if it has it http://www.1aauto.com/1A/wheel-bearing-hub-rear/Saturn/Vue/1ASHR00057/1052199
just curios as to where a knock sensor would b located on a 95 vw golf gti 2.0
It uses a T45 Torx bit.
bank 1 sensor and bank2 located under air intake (plenum) on top valley of 03 6.0l 364 gas Chevy engine.
You can find the knock sensor on an 03 odessy underneath the plastic "scare cover". It is nestled below the intake between the heads, under the fuel rails. It is a bit of a job to simply locate let alone replace it.
Dr. Knock was created on 1951-03-21.
A HUMMING SOUND CAN BE A BAD WHEEL BEARING.(YOU WOULD HEAR THIS AT ANY SPEED AND ANY ROAD SURFACE) Our '03 Vue hummed also. Replaced the rear wheel bearing/hub assembly...40,000 miles! My 03 Vue had a bad carrier bearing...The drive shaft is a two part design...and where the two meet is a bearing ...when mine started acting up it sounded like the rear wheel bearing..It's not easy to change you need a bearing press...
When it happened on mine, it was the BCM going out. All the accessories & instrument panel went nuts when the key was in the on position, but when you tried to turn the car on, nothing would happen.
I am currently having this same issue with my 03 Vue, and I got a diagnostic done (twice). The issue seems to be the BMC. Initially, I had the same issue as you, but over about the next year, my gauges started to bounce and the powersteering goes in and out. My SERVICE light also lit up and my A/C stopped working. Hope this helps.
putos
My Saturn was doing the same thing, shop said it needed throttle body 900.00. I changed the throttle body gasket , problem was solved, and I did it myself, cost me about 30.00