Jump to content

Thumping sound in 2003 Avalanche

JASKIN

Recommended Posts

JASKIN Enthusiast

JASKIN

Posted
Posted

I am having a thumping-clicking sound that seems like it is coming from the right front side of my 2003 Chevy Avalanche 1500 4x4, if I tap the brake lightly the sound fads away but right back when I remove my foot from the brake. banghead.gif I just purchased this pickup a few months ago and had my mechanic check it out and did put in a rear u-joint,wheel bearing and ABS sensor in right front,new 265/70/16 tires,plugs,wires and oxygen sensor and cleaned MAF sensor. Did not notice the sound when I bought it,it has 192,000 miles on it. Yesterday the mechanic removed all the tires and checked the brakes,said their was some rust on the rotors but more on the back ones,no loose shields and he has no idea at this point. The parking brake was stuck down when I bought it and I has to pull the release lever and the pedal to get it up. It drives fine and no drifting or shimming. Seem to keep time wit a rotation??

post-170214-0-25229400-1493213692.jpg

post-170214-0-25229400-1493213692.jpg

post-170214-0-25229400-1493213692.jpg

post-170214-0-25229400-1493213692.jpg

SunShine01 Enthusiast

SunShine01

Posted
Posted

Could be anything. But if it disappears by feathering the brakes, I'd say caliper ?

 

I would have said something in the tire, wheel bearing or bent axle, but since you said braking stops it ?

 

Still might be bent axle.

 

 

Sent from my iPhone using Tapatalk

krly79 Enthusiast

krly79

Posted
Posted

I had a wheel bearing do something similar. It was weird too because it didnt pull or drift, but had about 3/4" play in and out so 1.75" total. Just jack up the front and see if you can rock the wheel up and down by the top and bottom of the tire.

 

Sent from my SM-G925V using Tapatalk

sdeeter19555 Senior Enthusiast

sdeeter19555

Posted
Posted

Bad or slipped belt in tire...

 

I also have a wheel that makes noise, it's a squeak...I've narrowed it to either the stainless skin moving on the steel wheel or a wheel weight moving as the tire flexes past that point.

 

Sent from my SAMSUNG-SM-G900A using Tapatalk

JASKIN Enthusiast

JASKIN

Posted
  • Author
Posted

When the weather clears I will jack it up and have a look at things. My mechanic had all 4 wheels off and looked it over but might of missed something. It is still winter weather right now and I do not have a garage so I will wait until it warms up a bit. Thanks for all the replies, it is driving me crazy and hope it is not damaging anything. Could of they warped a rotor when the new tires were put on, I bought them at Sam's Club and were Michelin LT, it seems I noticed the sound more since.

 

JASKIN

SunShine01 Enthusiast

SunShine01

Posted
Posted

When the weather clears I will jack it up and have a look at things. My mechanic had all 4 wheels off and looked it over but might of missed something. It is still winter weather right now and I do not have a garage so I will wait until it warms up a bit. Thanks for all the replies, it is driving me crazy and hope it is not damaging anything. Could of they warped a rotor when the new tires were put on, I bought them at Sam's Club and were Michelin LT, it seems I noticed the sound more since.

 

JASKIN

If it happened right after having your wheels off completely,,,,

 

Make sure your tires lugs are tight all around.

 

If you have uneven tightness, it's possible your rim could wobble as it turns and enhanced louder when turning a corner. Possible but highly unlikely.

 

5e9f24fac7e86fc686f95266ec3d4ea8.jpg

 

 

Sent from my iPhone using Tapatalk

JASKIN Enthusiast

JASKIN

Posted
  • Author
Posted

Thanks for the reply, I did not notice it right away as I was 150 miles from home when I had the tires installed and was on the highway most of the time and when I notice it most is at 10 to 35 mph,with the window closed--going faster the road noise increases and my hearing is not as good. Nice looking truck you have.

  • 2 months later...
eddiefromcali Enthusiast

eddiefromcali

Posted
Posted

is the brake pad hardware in good shape? Ive had that happen and it turned out to be worn anti rattle clips on the calipers

JASKIN Enthusiast

JASKIN

Posted
  • Author
Posted

is the brake pad hardware in good shape? Ive had that happen and it turned out to be worn anti rattle clips on the calipers

I checked the pads but will look at the rattle clips, Thanks

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Latest Articles

  • Posts

    • Aimatdeer
      Ac not keeping up

      By Aimatdeer · Posted

      I was using recirc/max air. Especially if it really hot i start out by lowering the front windows a little with regular ac the go to recirculation after a few and rolling windows up. And it does not have the newest refrigerant. It has per the info under the hood r134. Not the new r1234yf.  
    • Atlas
      AC diagnostic on a neo-classic Camaro

      By Atlas · Posted

      tldr; Shade tree mechanic stumped by variable displacement AC compressor.   Not Silverado related, but for my 2000 Camaro SS. I've never really used the AC since acquiring the car a good handful of years ago. I plan to take it on a trip this summer so I wanted to make sure the AC was in good shape. On an 73 degree day in the shop with the car idling I set the AC on "Max", temp set to cold, and fan on hi. The compressor turned on and air turned nice and cold.   I let it run for several minutes but noticed the compressor never cycled off. The engine was up to temperature enough that it began cycling the cooling fans on high. I had a set of manifold gauges hooked up and it was consistently at about 25 psi on the low side and between 200 and 225 psi (warm engine) on the high side. Per temperature charts, the low side is low (should be 30-35) and the high side is a little high (up to 170 per chart). I read the low pressure as potentially being under-charged underscored by a continually running compressor This was also underscored by temp readings of mid-20 degrees at the vents. Not just cold, freezing cold. Switching off the AC but leaving the HVAC fan on high produced a deluge of condensation underneath the vehicle. I was getting ice buildup on the evap core most likely.   The low reading (25psi) concerned me that the compressor wasn't switching off so I swapped out the pressure switch. No change in behavior, still ran constantly.   The AC clutch works fine as it engages/disengages with the HVAC switch on command. The compressor relay is good as I swapped it with two different known good relays just to be sure. Having eliminated that, and the pressure switch, I added refrigerant, thinking the constant run and low "low" pressure were signs of a slight undercharge. Makes sense, the car is 26 years old and it doesn't appear the AC system has ever been touched.   Adding some R134a didn't meaningfully change the low side pressure. And that's when a lightbulb flashed upstairs. While I consider the car "old", it's possibly "new" enough to have a variable displacement compressor. Did some reading and sure enough. Dangit. I don't work on these for this reason.   Adding refrigerant means the compressor will just compensate and won't really change pressures until it's severely overcharged or undercharged. But at least I wasn't getting ice/frost anymore, but instead high 30 degree temps out of the vents. That's more normal, but with variable displacement now I have no idea where my charge level is at. It's probably overcharged now. The high side even with the engine radiating serious heat was never really over about 225.   The static pressure at room temperature is dead on, before and after the charge. Both high/low equalize after some rest.   I'm thinking I'll need to take it to a shop. I want the proper charge level so I'm not working the compressor too hard. The only way to get an accurate charge is to evacuate and then re-charge with the exact amount specified for the system -- at least that's what I'm reading.   Anyone here with modern automotive AC knowledge?  
    • Byrds8
      Ac not keeping up

      By Byrds8 · Posted

      Mine is in the shop for the AC now. While it did get cold after a bit, it would take a while to even start to cool the air at all. Turns out the compressor was bad and cycling. 
    • KARNUT
      Ac not keeping up

      By KARNUT · Posted

      I call B.S. when I first moved to Texas my first house would only cool to 80 with the Texas heat. The AC tech said it was normal at 100 degrees outside. I remodeled the house put in a new AC. I could hang meat. My cars may need recirculating to start. Once moving it switches to regular AC and I could hang meat. Living in Texas no one would put up with only 20 degrees difference. 
    • Silverado4x4
      Ac not keeping up

      By Silverado4x4 · Posted

      AC in home or auto only cool down 15-25 degrees from outside temp, but what will help is to put the ac in recirc mode this will recirc the Inside cabin air rather then trying to cool down the outside hot air, I always have mine in recirc mode.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...