What could this noise be?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

thecantaloupeman

Full Access Member
Joined
May 14, 2019
Posts
447
Reaction score
144
Location
US
First Name
Dawson
Truck Year
1978
Truck Model
C20 Silverado Camper Special
Engine Size
350
So I noticed this noise after getting my new tires. It was not there when I test drove the truck originally, but that could just be because it's an on and off issue. Sometimes it just completely dissapears and other days it is there again. It almost sounds like it is inside the cab but I doubt it. It definitely sounds wheel speed related. I have no idea what this could be. Here is the video.

https://photos.app.goo.gl/9RcP8XSvpALZWPH3A

Sent from my SM-G950U using Tapatalk
 

1985c20

Full Access Member
Joined
Jan 21, 2019
Posts
143
Reaction score
187
Location
Torrington, CT
First Name
Chuck
Truck Year
1985
Truck Model
C20
Engine Size
350
Is it only when you’re stepping on the brakes? If it’s only after new tires check to see if they put stick on weights inside the rim theatre hitting the calipers or drums. Also check lug nut torques.
 

climb-101

Full Access Member
Joined
Mar 12, 2018
Posts
262
Reaction score
278
Location
montana
First Name
seth
Truck Year
974
Truck Model
c2 crew cab
Engine Size
6.0 LS
x2 on the lug nuts. wouldn’t be the first one i have seen that a tire shop forgot to TQ them and the rim was moving on the studs
 

shiftpro

Full Access Member
Joined
Aug 31, 2012
Posts
4,855
Reaction score
6,092
Location
BC Canada
First Name
shiftpro
Truck Year
73-87
Truck Model
1500, 2500, 3500
Engine Size
350, 383, 454, 496!
Sounds like the rim rubbing the caliper. Just barley touching it. Playing with the brakes shifts the caliper around enough to modulate the sound.
 

thecantaloupeman

Full Access Member
Joined
May 14, 2019
Posts
447
Reaction score
144
Location
US
First Name
Dawson
Truck Year
1978
Truck Model
C20 Silverado Camper Special
Engine Size
350
x2 on the lug nuts. wouldn’t be the first one i have seen that a tire shop forgot to TQ them and the rim was moving on the studs
Well I had my local shop check the brakes and I assume that requires them to remove the wheels. Unless they didn't then that could be my issue.

Sent from my SM-G950U using Tapatalk
 

thecantaloupeman

Full Access Member
Joined
May 14, 2019
Posts
447
Reaction score
144
Location
US
First Name
Dawson
Truck Year
1978
Truck Model
C20 Silverado Camper Special
Engine Size
350
Is it only when you’re stepping on the brakes? If it’s only after new tires check to see if they put stick on weights inside the rim theatre hitting the calipers or drums. Also check lug nut torques.
It isn't only when stepping on brakes. How do I check if they put stick on weights?

Sent from my SM-G950U using Tapatalk
 

thecantaloupeman

Full Access Member
Joined
May 14, 2019
Posts
447
Reaction score
144
Location
US
First Name
Dawson
Truck Year
1978
Truck Model
C20 Silverado Camper Special
Engine Size
350
Check your shocks.
The shop did tell me the shocks could use a replacement, but why do you think that be causing the noise?

Sent from my SM-G950U using Tapatalk
 

thecantaloupeman

Full Access Member
Joined
May 14, 2019
Posts
447
Reaction score
144
Location
US
First Name
Dawson
Truck Year
1978
Truck Model
C20 Silverado Camper Special
Engine Size
350
Sounds like the rim rubbing the caliper. Just barley touching it. Playing with the brakes shifts the caliper around enough to modulate the sound.
It doesn't seem to be affected by when I press the brakes, but could I just need to grease my wheel bearings?

Sent from my SM-G950U using Tapatalk
 

shiftpro

Full Access Member
Joined
Aug 31, 2012
Posts
4,855
Reaction score
6,092
Location
BC Canada
First Name
shiftpro
Truck Year
73-87
Truck Model
1500, 2500, 3500
Engine Size
350, 383, 454, 496!
It doesn't seem to be affected by when I press the brakes, but could I just need to grease my wheel bearings?

Sent from my SM-G950U using Tapatalk
If your bearings get the point of making noise... you will be greasing your NEW bearings. Get your hands dirty it's fun!
 

1987 GMC Jimmy

Automobile Hoarder
Joined
Jan 23, 2016
Posts
5,848
Reaction score
2,389
Location
Mississippi
First Name
Jesse
Truck Year
1987
Truck Model
V1500 Jimmy
Engine Size
350
It sounds like something rubbing on the front rotor(s). Maybe a driveline noise but not likely. Weights, backwards pads, even new pads on ******, worn out rotors that didn’t bed in like they were supposed to... I’ve never heard a wheel bearing that sounded like that. I don’t think that’s it either, but it’s simple to check, replace and repack if needed. Have you tried jacking the front end and spinning the wheels or the rear and putting it in gear?
 

thecantaloupeman

Full Access Member
Joined
May 14, 2019
Posts
447
Reaction score
144
Location
US
First Name
Dawson
Truck Year
1978
Truck Model
C20 Silverado Camper Special
Engine Size
350
It sounds like something rubbing on the front rotor(s). Maybe a driveline noise but not likely. Weights, backwards pads, even new pads on ******, worn out rotors that didn’t bed in like they were supposed to... I’ve never heard a wheel bearing that sounded like that. I don’t think that’s it either, but it’s simple to check, replace and repack if needed. Have you tried jacking the front end and spinning the wheels or the rear and putting it in gear?
I haven't yet, but I'll be sure to do that. I just need to make sure my jack stands are safe first. I have harbor freight pittsburgh 6 ton jacks stands that seem to fall down. I think they are defective because the display model in the store didn't do the same thing.
 

Dave 84

Full Access Member
Joined
May 20, 2019
Posts
88
Reaction score
27
Location
Arizona, glendale
First Name
Dave
Truck Year
1984
Truck Model
K5
Engine Size
5.7
How fast were you going does the noise slow down as the truck does? Also when its happening turn the truck off and see if it goes away.
 

Forum statistics

Threads
44,173
Posts
950,848
Members
36,288
Latest member
brentjo
Top