it makes a grinding/roaring noise

1998 GMC
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ONE2ENFORCE
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  • 1 POST
V8 Four Wheel Drive Automatic 120000 miles The 4WD is engaged all the time even when manual shifter is in 2WD. When you accelerate from a stop, it makes a grinding/roaring noise. It feels like a motor mount is broke but they are fine. When it makes this noise the 4WD drive indicator light comes on , when noise stops, light goes off. While driving ,it IS still in 4WD. I have replaced drive axles, actuator, and u-joints. Can any one help with my problem, i am running out patience and its hunting season.. HELP!
Oct 25, 2008 at 10:19 AM
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MICKEY-D
  • ✓ASE Certified Mechanic
  • 304 POSTS
  • ASE Certified Mechanic
I believe you have a weak or broken motor mount, and maybe a trans mount as well.
Jan 7, 2010 at 2:26 PM
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