The sound comes from the top side of the motor on the passenger's side. Perhaps where the injectors are. Does the truck have some kind of turbo that may have bad bearings?
It has a bad valve train in cylinder heads & will need
major work soon
Check will a dealer,they are well aware of many issues
with the Colorado
SOURCE: how do i change out the knock sensor on a 2006 chevy colorado
You didn't list your engine size so please pick the applicable to your motor size:
Removal & Installation
2.8L & 2.9L Engines
To Remove:
Knock sensor (KS) (A), Engine harness (B), Knock sensor (KS) connector (C)
To Install:
SOURCE: '05 Chevy Colorado has an
There is nothing that can make a whining noise in the back of the engine. Likely the noise you hear is coming from either the transmission converter or pump. Before anything else is done, check the fluid level. If the fluid on the dipstick smells burned, you definitely have an internal trans problem.
SOURCE: My car makes a bad growling noise. Everyone said
WHEEL BEARING USUALLY STARTS MAKING A ROARING TYPE NOISE WHICH USUALLY GETS LOUDER THE FASTER YOU DRIVE, SOMETIMES THEY WILL BE LOOSE , TO CHECK JACK UP THAT WHEEL AND GRAB TOP AND BOTTOM OF TIRE AND SHAKE, IF THERE IS MOVEMENT, TRY TO GET SOMEONE TO ROCK TIRE FOR YPU AND WATCH WHERE AXLE GOES INTO CENTER OF BEARING AND SEE IF AXLE IS MOVING WITH TIRE MOVEMENT AND SPINDLE REMAINS STATIONARY, THEN IT IS BAD BEARING, OR SOMETIMES THERE WILL BE NO MOVEMENT, THEN BLOCK REAR WHEELS AND RUN CAR WITH THAT WHEEL IN AIR AND SEE IF YOU HEAR NOISE, GOOD LUCK.
SOURCE: my 2006 chevy colorado is making a clicking sound and won't turn over
Your Main Battery is Flat, get a jump start if its safe or remove the battery and hook it up to a charger. Maybe you left your lights on, or your alternator isnt charging the battery properly when your driving around. Sometimes this can be the bushes located in the alternator.
SOURCE: I have a squeaking noise that's getting very bad.
squeaking noise sounds as though everything got replaced how about the transmission crossmember rubber mounts sometimes after a motor swap these get shifted into a binding posision Look at it if it's all twisted and not proportional in size yep it got moved
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I ended up finding it was a knock sensor. It was a real easy fix about 20 minutes and the sensor was only 35 dollars. Thanks for the feedback though.
It sounded like marbles hitting metal. There was no rhythm to the sound. I also noticed it didn't make the sound all the time. I then realized the sound was occurring on warm up and when the motor was under load. In other words, it was happening was the timing was supposed to be advanced. I saw Greg Bernett's comments and realized it could be the knock sensor which, I never heard of before. I took a chance and bought the part since it was only 35 dollars. From Greg's picture I was able to locate the sensor and replace it in about 20 minutes. The truck is running great now.
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