Thump sound when in 4WD + Scraping/Bucking when turning right in 2WD

[BrooklynMike]

Hey guys,

Last weekend I noticed while accelerating in 4WD there is a thumping sound coming from the front driver's side area. It only happens when rapidly accelerating. Since I'm in NYC with a 25MPH speed limit, I haven't been able to do much testing since every corner has a traffic light, and there's usually a vehicle directly in front or behind me. Not sure what this could be?

Then yesterday I noticed a scraping sound coming from the front driver's side wheel when the wheel is locked to the right while in 2WD. There was also some resistance. I went to a parking lot and drove in a circle and sometimes it happened and other times it was fine. At times it felt like the front left wheel locked for a moment while I was going in a circle.

Does this sound like a common issue with a 2003 Tahoe?

 

[clandr1]

Might be a bad wheel bearing?

 

[BrooklynMike]

I think when I got an inspection done last year the guy said there was some play in the control arm. I'll have to get it checked out.

I just watched this video and it sounds like it could be a variety of things

https://www.youtube.com/watch?v=IvBm2kvoMQw

 

[OR VietVet]

I would be leaning toward a failing/binding cv joint. But yea, could be a hub bearing or ball joint binding or control arm bushings bad that allow the arm to be in a weird angle causing other components to be noisy.

 

[BrooklynMike]

I'll do a better inspection this weekend. I only had a chance to take a quick look under the truck yesterday. I think I saw grease splattered on the control arms but didn't get to get close enough to touch.

If it turns out to be the CV joint, is this replacement part good quality?

http://www.autopartswarehouse.com/s..._Joint/2003/LT/8_Cyl_5-dot-3L/A1601009HD.html

 

[BrooklynMike]

I called Cardone today to ask if their CV axles are made in China, and I was told the re-manufactured part is made in Texas but the new one is made in China.

I also wanted to know if it would be better to go with the thermoplastic vs the neoprene boot, thinking that the NYC climate might require a tougher material, but they didn't really have an answer.

I went to rockauto.com to check prices and I see the made in china parts are listed as one of their most popular parts. So I'm still trying to figure out which one to get. I checked Autozone and only found their brand Duralast http://www.autozone.com/drivetrain/...03/8-cylinders-t-5-3l-sfi/54412_703123_12553/

Rockauto also sells the OEM ACDelco part for $311.99

Anybody have any experience with Cardone or Duralast CV Axles?

 

[BrooklynMike]

Might be a bad wheel bearing?

Yep, that's what it turned out to be. The front left is really loud, and you can feel the vibrations. The front right is also bad. The replacement parts are on the way now.