4wd engaging , but doesnt supply enough power to front wheels 2003 gmc sierra Z71 extended cab 5.3 L


Asked by Sep 04, 2016 at 09:48 PM

Question type: Maintenance & Repair

I was driving down the road and the u joint broke
on my rear drive shaft, not a big issue took the
drive shaft out and put the truck in 4HI. The truck
would barley move .I had to get it too about 5k rpm
to even move it. When I put the truck from drive to
reverse the front wheels pull a little. it moves about
an inch then stops. It is push button 4wd. With
auto 4wd if this makes a difference. It is engaging
fine. It just isn't giving enough power to push the
front wheels.  Also when it's on a lift in 4wd the
front tires spin . One spins really slow tho and
sometimes stops is this normal?

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