Two issues with my 99 Denali.

[shorgasm]

I just got it a couple days ago...here's a couple things I would like some info on..Niether are an issue but would love to get rid of them.

 

1..There is a bump noise(sounds like a small door closing) under or infront of the passenger front floorboard.We can feel it and it is like a baking sheet pan popping.It only does it ONCE at a time.Usually when just stopping or during turning left.It happens oddly.I can't really recreate it it just happens..once it did it just driving slowly in traffic.Only ONE bang/pop....To me driving it sounds like a plastic bottle falling over....exhaust??? Cat?

 

2.Stopped in gear and let off the brake and just barely using the peddle there is a very faint stumble...you can almost count two little jerks.??...U-joints?

 

3..At 77mph to 84mph there is a vibration like out of balance tires.It does it enough to just shake the dash.The truck has brand new tires at 265/75 16 on stock wheels....I feel they let the truck wallow a bit?...s**tty tires?

 

4..During steady state cruising in the gas pedal I can feel a buzz.No noise or anything odd but it is there.Touch the pedal to accelerate and it is gone.??No idea........lol

[shorgasm]

Anyone?.......

[GM-Tech]

Anyone?.......

 

Nothing there I can offer any advice on. Kind of vague noises/feelings that one would have to experience. Tires might be your high speed vibration, but tires usually come in at a lower speed than that.