Chevrolet Colorado knocking problems

Filed Aug 13, 2026 · Engine · CA

a/c control knocks out tempter senor and gauge goes to zero and check engine light comes on, gas mileage goings to hell, turn off engine clutch fan runs for several minutes, can still touch water hoses by hand and not even hot. This is a big safety problem because I'm looking at the gauge and now causing more smog! Chevrolet Merele Stone in Porterville CA had it all day reporting A GM Strat sticking ,it was a brand new gm delco and senor and still doing it . It's a $1000.00 to repair itThey had to jump start my truck went picking it up. tried to charge the battery over night but dead battery, had to replace it $250.00 expense, and $189.00 to denoised. Called GM for a appointment in Visalia to check the problem 42 mile on way from home and showed up to No APPOINTMENT!

Filed Jan 22, 2026 · Transmission · CA

Even when new, the truck would abruptly down shift from 2nd to 1st, every now and then. Then with about 3000 miles on the truck its started doing every time, once the transmission is warmed up. It seemed to get better and then started again with about 4000 miles and kept getting worse. It got so bad that the truck would shudder and it almost felt like I was getting rear ended and you could hear knocking from the transmission. I then turned it in the dealer and when I got it back, the dealer stated that they had to replace a valve in the valve body.

Filed May 2, 2025 · Engine · AZ

There was a catastrophic engine failure of a 2021 Colorado 3.6L V6 engine. The engine has been replaced by GM and the failed engine is in the dealers' possession. While driving on a congested street, the engine misfired and immediately stopped. The vehicle rolled to a stop in the middle of 3 lanes. Occupants had to flag down traffic while pushing vehicle to the side. There was no warning lamps, messages or other symptoms, such as knocking, prior to the failure; and the oil service was maintained per manufacturer. Two separate dealers found "piston to valve contact, top of piston severely damaged, and metalic debris in intake plenum." GM Service Bulletin 19-NA-256 has identified "Seized engine" caused by defective "crankshaft main or rod bearing failure" that can put the oil filter "in by-pass and distribute unfiltered oil with bearing debris throughout the engine." In addition to the rod bearings, designated inspection points are the cam caps and camshaft journals on the heads and the timing change idler sprocket for stiffness when turning. Since the vehicle was 15,000 miles over the 60K warranty, they would not perform the designated diagnostic steps in Service Bulletin. Owner waiting on independent oil analysis. Service department provided pictures of metallic debris and valve damage, as well as the damaged spark plug. After opening Case # 9-14977425869 with GM Customer Service and asking why Warranty has not been extended or a Recall issued for the known manufacturer defect in the TSB, the response was "it likely has not occurred enough times to warrant a recall". With a dealer discount, total towing, diagnostic and repair costs exceed $11,000. Results of Blackstone Labs oil analysis will be provided when completed, however, the oil was just changed 462 miles prior to the failure, so a sample of the previous oil that would have contributed the most to the failure was not available (6,948 mi on previous oil).

Filed Oct 31, 2024 · Steering, Transmission · 53,000 miles · MI

The contact owns a 2021 Chevrolet Colorado. The contact stated while driving at an undisclosed speed, the steering wheel briefly vibrated, and there was an abnormal knocking sound coming from the vehicle. The vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the steering rack. The vehicle was repaired, but the failure reoccurred. The vehicle was taken back to the dealer, who then diagnosed a failure with the lower steering shaft, and the transmission 4x4 climbing gear. The vehicle was repaired. The manufacturer was notified of the failure and referred the contact to the federal safety agency Hotline for assistance. The failure mileage was 53,000. The VIN was not available.

Filed May 20, 2024 · FL

We have been complaining to the dealerships (2) since 2021 about a spontaneous outage of the Infotainment system. Each time we were told there was no problem. They claimed to have contacted GM, who said 'no problem' or so we were told. The 'problem' has become a serious safety issue for myself. It starts with a loud constant ‘ticking’ sound that begins after getting seated, even before the key is placed in the ignition and does not stop. The radio rolls a list of station numbers even when nothing is on making it very distracting. Listening to the radio has become impossible. This system malfunction has created a more serious problem for me. At my height, the view of the speedometer reading on the dashboard is blocked by the steering wheel making me dependent on the mph display directly in front of the steering wheel, and is part of the Infotainment system, which keeps going off and I have no way to watch or judge my speed safely. It also interferes when using gps and causes a loss of direction. This is just downright dangerous. As obvious as the problem is, the current dealership requires a $190 diagnostic fee with repair costs to follow. This system was not an option or add-on. We could not break it or wear it out. Now out of warranty GM refuses any responsibility. Why no recall? Many complaints stated on social media.

Filed Jul 25, 2023 · Electrical, Seat belts · FL

There are crackling sounds coming from the wheel when going over humps. no power while driving or changing lanes it's worst when the ac is on, was burning gas like crazy, and shakes at 65 mph., the gas while escalating makes a clicking noise like 2 iron knocking together, and the dashboard including the radio, and telephone screens goes blank/black. from time to time from day one, the truck drop dead/blank in August 2021, AC comes on while not on time to time. the tire sensors read wrong, the door is making clicking noise, outside air is coming into the cabin, and exhaust fumes. It's very damp by my feet and under the steering under the driver's feet it's rusty, the safety alarms are on from time to time. From time to time the belt will squeeze while driving. Yes, the truck has been at the dealership lots of times, every time they claim they can't find the leaks or the problem! and refuse to set up any warranty repairs.

Filed Sep 5, 2022 · Acceleration, Engine · UT

Beginning in 2018, perhaps earlier, I noticed that often when I would press the accelerator all the way, the engine would (and still does) make a sound (I’ve since learned, through many dealership interactions and internet searches, that the sound is referred as pinging or knocking from pre-detonation), and it SEEMED that the car’s computer would (and still does) electronically back off the throttle, and the rpm’s reduced in terms of speed of acceleration (sometimes the rpm’s even DECREASED as opposed to merely increasing less rapidly). This has placed myself and passengers of the car in danger by causing the car to go through intersections significantly slower than I (as well as my mother who also occasionally drives the car) would naturally anticipate, as this slow crossing through the intersection has led to many close-calls when intersecting traffic (when they have the right-of-way) almost crash into the broad side of the truck. It USED to occur I would put in any fuel with an octane rating lower than 91, but now it even happens with 91 octane fuel. The problem has been reproduced by two Chevrolet dealerships. I have taken it in many times to have them repair/replace/service parts that I thought might be causing the problem. The shop foreman at one location replicated it and said he had no idea what the cause could be. The service dept. was then in back-and-forth contact with engineers at GM over the next couple of days, and the engineers eventually suggested an oil system flush thing (which ended up not helping). It’s had oil filter changes, fuel induction service, and basically everything short of replacing the injectors or pistons. Neither the vehicle nor its components have been inspected by the manufacturer, police, insurance representatives or others. No warning lamps or messages have ever displayed in relation to the problem. My co-worker’s husband has a 2018 GMC Canyon with a V6, and says the exact same thing happens with his car.

Filed May 17, 2022 · Engine · OH

One morning I started my truck to go to work and the engine started ticking when I arrived at work the engine was still ticking . Being a European Automotive Technician for 34 years I knew this was bad . I performed an extensive diagnosis of the engine and found metal particles in the oil and filter at that point I knew that something in the engine had failed . I removed the engine and removed the oil pan for further inspection and discovered that the # 2 cylinder piston was broken below the wrist pin.

Filed Sep 25, 2019 · Engine · 28,000 miles · CA

I have a 2005 chevy colorado standard cab 2.8 liter after 3 years I noticed engine internal noise start it up now it sounds like a diesel a lot of stuff is knocking around inside the motor I heard it was some type of recall on that but I'm not sure I do remember I had problems with throttle body have been replaced twice after this replacement from a certified technician that's when the problem of reduced power failure emitting from my dash could not go over 40 miles an hour check engine light would come on so I was told to disconnect battery for about an hour to let computer reboot and the problem would go away just for a little while when the motor is cold there's no noise it sounds like it's new but when it heats up that's when all the noises begin I always change my oil out every 3000 miles or 3 months I used castles 70,000 mi plus because I have 110000 mi on the vehicle I don't know if anyone who's had the same problem as far as the knocking in the motor but I do know that people have had problems with their throttle bodies malfunctioning and causing the truck to run rough and slow and sluggish now I don't drive it very far because I'm afraid that power reduction light will come on in my dash therefore I can't go over 40 miles an hour which I've mentioned this before all I can say is after this with the throttle body motor has been giving me problems vehicle was in motion

Filed Nov 3, 2017 · Transmission · 500 miles · CO

When driving my 2015 colorado z71 4x4 with the v6, in city traffic, you try to speed up slightly so you depress the throttle and the truck doesn't go any faster, then the truck will downshift two gears, lurch forward at high RPM's nearly striking the vehicle in front of you. The engine also spark knocks when up shifting in all gears. Took it to dealership and was told, gm engineers were aware of the problem and working on it, it appears they fixed it with the 2017 colorado as they put a different engine and 8 speed transmission in the new trucks. If there was nothing wrong with the original power plant and transmission why would they change especially since the new engine transmission doesn't get any better mileage. Also, when driving at highway speed, 75 MPH the truck downshifts on it's own, the RPM's go almost to redline and if someones in back of you, you almost get rear ended. Gm says that the transmission is learning, really at 17000 miles its still learning. There is a significant problem with the shift pattern and timing with the engine on this truck. The spark knock and transmission issues have been going on since the truck was new.