transfer case clicking/creeking sound

[montec313]

i have a 98 tahoe 4x4 with the push button. the transfer case has a clicking/creeking noise coming from it. i jacked the back up and rotated the wheels to pin point that it is coming from inside the t case. any ideas what this is? the tahoe drives like a champ and i wanna catch it before it tears other stuff up. whatever the prob is. does any one have a exploded diagram of the t case

 

[SunlitComet]

Perhaps a loose or worn mount. Do you have the auto 4*4 with buttons one above the other or two switches side by side?

 

[montec313]

has two buttons. the are no loose mounts. the noise is in the tranfer case. i jacked it up and spinned the wheels while under the tahoe. same noise as driving.

 

[SunlitComet]

Sounds like a np243 RPO code np1

http://www.rsgear.com/technical/diagrams/ep-diagrams/new-process-243-transfer-case.aspx

 

[montec313]

it has the auto4x4 under the two wheel drive. and on the other switch is 4x4 and under it is low 4x4

 

[SunlitComet]

In that case it is probably is a nv246. You can find diagram info on the same site.

 

[steamroller]

Maybe slack in the chain rubbing on the case?

 

[ChiTahoe]

Have you checked the fluid level?

 

[montec313]

ya i checked the fluid in the transfer case the other day to make sure it wasnt that. first thing i thought of. lol when ever it stops feeling like hell outside im gonna take the t case out. been 100 degrees out for the past couple weeks.

 

[ChiTahoe]

Hate to tell ya but whatever it ends up being, prolly time for a rebuild. Or if you search online I bought one years ago NEW GM for $250 shipped, some company out of Wisconsin.