When driving over 60km, a rough humming sound starts, the faster i go the louder it gets. Is it a tire problem or a tranny problem?

The hum is probably a bad wheel bearing.

P304 is a cylinder misfire code.


P0304 GMC Cylinder 4 Misfire Detected

my guess is the wheel bearing. jack the rear tire off the ground and try shacking the tire. if you have any play your bearing could be bad.did you hear a hum from the same wheel. wheel bearings will hum before they start grinding

Check your wheel bearings and makes sure that the Trans has the right oil that it should have

Check wheel bearings. Properly jack up the car one side at a time with blocks set in front of and behind the front wheels with the car in Park. Do not set the parking brake as this will prevent the rear wheels from being spun while off the ground. Safety consideration--- Do not get any body parts between the wheel and finder or under the car in case it slips off the jack---- After one rear wheel is slightly off the ground begin to spin it and listen for rough / dry/ popping noises or break pad drag. See if the noise gets louder when you spin it faster or one direction versus the other. Check for loose bearing by trying to wiggle the tire side to side and top to bottom. Pay attention to tire wear. If you find nothing in the wheel itself, the tire might be the problem if the tread is worn oddly. You can change that tire's position with another wheel and see if the noise changes to the tire's new location. Repeat by checking the other side.

You should check the power steering fluid level first. However, you said the noise gets louder if you turn the wheel. That sounds like a front hub bearing. To check the front and rear hubs, raise the tires off the ground one at a time. Try to move the tire in & out at the top, sides and bottom. spin the tire if you can. Only a tiny amount of play, if any, is acceptable. If you hear or feel rumbling or roughness when turning the tire, the hub is bad and must be replaced

First your cluth problem most possible cause is your trow out bearing, and second snow tires get louder with speed thats normal,

What type of sound is it Humming , Howling,buzzing ,growling etc.

Is this a new problem? Have you recently installed new tires? If not, are your current tires worn?

My first guess would be tire noise.

well did the noise start after the tires were rotated?could be choppy tires,,,if not ,i strongly think it sounds like a bad wheel bearing,,,,if you drive and while its making the noise turn left and right quick and see if the noise gets louder and which way turning makes it louder,,if you turn leftand it gets louder its usually the right wheels bearing as you are putting load on it, if it makes the noise louder while turning right its the left wheel bearing,,,got it

it is either a tire or you have a wheel bearing going bad. sounds like a bad bearing. you can usually narrow down side by driving and turning the side that is bad will get louder when weight shifts to that side and quieter when weight shifts off