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does anyone know where i can find a 2003 Tahoe z71 wiring diagram?

i tried putting it in while driving it did nothing....but i put it in auto 4x4 and i felt 4 high work so idk

I have not tried that yet..will try and let you know what happens

I got an 2003 Tahoe Z71, and my four high doesn't lock in the four low locks in perfect but no four high. This is what it does i put the truck in N and hit the four high button it flashes then goes solid but no lock in. i hit the four low button flashes goes solid then locks in....any ideas???????

I figured it out i think my idler puller is going bad i heard the squeak and took some wd40 and sprayed it and it stopped so going to replace it tomorrow.

My Tahoe started to make a funny noise last night and it sounds like it is coming form under the center section of my truck....and its like a squeaky clicking noise and the higher the motor revs the faster the noise is in drive or park any ideas at all will be helpful

Guys sorry the heat works up front but not in the back...can anyone help me out:yar:

yeah my rpm gauge acts like it has a short in it one day it works next it dosen't does anyone know where the wire or switch that controls it is located :( ....thanks guys

I have a 2003 Tahoe Z71 and when i turn my heat on it blow cold on the driver side but blows hot on the passenger side...and it blows cold in the back..any idea guys?????????????:confused2: