1996 GMC SIERRA AUTOMATIC TRANSMISSION SOUNDS

  • Tiny
  • mobyd13
  • 1996 GMC Sierra

Transmission problem
1996 GMC Sierra V8 Four Wheel Drive Automatic 212000 miles

My '96 GMC 1500 has a rebuilt automatic transission with around 60,000 miles on it. The issue is that when the truck is in gear there is a scraping noise. When I put the truck in neutral or park the sound goes away. The transmission has been serviced about 20,000 miles ago. The fluid looks good and is at a good level. Ideas?

Wednesday, March 3rd, 2010 AT 7:02 PM

3 Answers

  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,310 posts

Do you hear the sound when the vehicle isn't moving?

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Tuesday, March 16th, 2010 AT 9:28 AM
  • Tiny
  • mobyd13
  • Member

Yes, as long as the vehicle is in gear. In neutral or park there is no noise.

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Tuesday, March 16th, 2010 AT 6:06 PM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,310 posts

It sounds like an internal problem. It could have to do with the clutch packs. I hate to say it, but I think you need to see a trans tech with this. It isn't a sensor, solenoid, or electrucal issue.

I wish I had better noise, but that is what it sounds like to me.

Joe

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Tuesday, March 16th, 2010 AT 10:15 PM

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