Front wheel growl

[rickg121]

Hello Everyone,

I've got a 2000 Jimmy 4WD with 120,000 miles on it. Great truck, runs great.

However, It's developed a loud growl that sounds like it's coming from the front passenger wheel. Sounds like a knobby bicycle tire rubbing against the bike's fender. Noise goes away completely when the truck is placed in 4WD.

When placed back in 2WD at road speed, the noise may not start immediately, but when it does (after a few seconds) it starts at a lower frequency and 'winds up'. The wind-up only takes a half-second or so. Placing it back in 4WD stops it.

I'm guessing that it may be a transfer case issue. Possibly the spline on a shaft not fully dis-engaging? Again, just a guess.

Any thoughts?

Thanks

 

[Molson02536]

Hello Everyone,

I've got a 2000 Jimmy 4WD with 120,000 miles on it. Great truck, runs great.

However, It's developed a loud growl that sounds like it's coming from the front passenger wheel. Sounds like a knobby bicycle tire rubbing against the bike's fender. Noise goes away completely when the truck is placed in 4WD.

When placed back in 2WD at road speed, the noise may not start immediately, but when it does (after a few seconds) it starts at a lower frequency and 'winds up'. The wind-up only takes a half-second or so. Placing it back in 4WD stops it.

I'm guessing that it may be a transfer case issue. Possibly the spline on a shaft not fully dis-engaging? Again, just a guess.

Any thoughts?

Thanks

Could be the bearing in your front differential, CV joint, wheel bearing, or the cable to your front differential to the 4WD actuator sized and not fully disengaging the front differential.

I am leaning towards a bad bearing or half shaft (CV JOINT). Good luck and keep us posted.

 

[rickg121]

Thanks for the reply. The shaft would be an easy solution, but I'm curious as to why the growl goes away when 4WD is engaged.

 

[Molson02536]

Thanks for the reply. The shaft would be an easy solution, but I'm curious as to why the growl goes away when 4WD is engaged.

There is tension when it's in 4wd and the tension is tacking up the play in the front end components.

Start with inspecting the front have shaft's and CV_Joints. Keep us posted and good luck.

 

[rickg121]

That'll be my first stop. Thanks again

 

[J_Allen]

Sounds like the CV Joints to me too