4wd problems :/

[bajakid2]

Hey, i have a 2000 z71 with a 5.3 and the electric 4wd hasnt been working so good latley i tryed to use it today and when i pushed 4wd and tryed to go it makes these clinking noises that iv never heard in my life before on this truck...(i know from past experience that on my ranger when that happened my Hubs were bad)but im not sure and when im driving and taking corners it feels as if the torsion bars are creaking and it makes everything feel wierd...any ideas?Thanks for the help

[freakyt]

Which 4wd mode did you use? 4 hi, 4 lo, Autotrak?

 

When I lock mine into 4wd high, it turns much wider than if I was in Auto or 2wd. Binding in the front end when your in 4wd is common to very pickup. I also hear a few new noises and things when I'm in 4wd, but I'm not worried about them.

 

Is your 4wd working? Can you tell that all 4 wheels have power?

[bajakid2]

Hey,yeah i push the 4HI button and i can hear it engage but when i hit the gas to go it makes clinking noises...im scared to keep driving to see if it will engage or not....i hope to god nothings messed up with it...4wd is pricey..i also was wondering if maybe my torsion bars were maybe out of adjustment

[michigan2500hd]

Hey,yeah i push the 4HI button and i can hear it engage but when i hit the gas to go it makes clinking noises...im scared to keep driving to see if it will engage or not....i hope to god nothings messed up with it...4wd is pricey..i also was wondering if maybe my torsion bars were maybe out of adjustment

 

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Sounds like we may be going through the same problem. Do the lights indicate that the four wheel drive is engaged? The dealer has been giving me the run around about mine. Does yours engage if you are rolling and then hit the button?

[ChevyTech007]

when im driving and taking corners it feels as if the torsion bars are creaking and it makes everything feel wierd

Never drive in 4HI on dry pavement. That is a no-no.

[bajakid2]

hey chevytech...the creaking is when im in 2wd,any ideas wat it could be?do u think it could be that my torsions are out of adjustment?Thanks

[ChevyTech007]

You could try this:

 

Subject: 1999-2005 Chevrolet/GMC All Full Size Cab Silverado and Sierra Squeak or Creak Noise from Underbody Over Bumps - kw body bolt bracket cable frame suspension GMT800 #PIT3401 - (01/25/2005)

 

 

 

Models: .

 

 

 

 

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The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in the PI.

 

Condition/Concern:

Squeak or creak noise from the underbody over larger bumps or potholes.

 

.

 

Recommendation/Instructions:

The cab safety strap may be creating the squeak/creak noise. Remove the lower bolt of the safety strap at the body mount. Fabricate an insulator washer from some type of sheet plastic (washer bottle...etc.) Install this washer between the bolt head and the body mount bracket. Reinstall the bolt and tighten to torque specification of 85 Nm (62 ft lbs).

 

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Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

 

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Models:

(99-05 Chevrolet Silverado Regular Cab) and (99-05 GMC Sierra Regular Cab)

[bajakid2]

hey,now as i drive my truck makes a werid grinding feeling in the front end...it kinda goes away above 50mph...and this is in 2wd..its a slight feeling but its really agvirvating feeling and hearing it...could it be the 4wd axles?Thanks Travis i might just take the truck into the dealer tomorrow