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EMERGENCY PROBLEM TRANNY OR REAR END OR OTHER?

Tiny
GEORGIACHRIS2003
  • MEMBER
  • GMC C1500
My truck makes a winding noise through first and second gear and a small point in 3rd gear. Only when it runs for a few minutes. I've reved it up and no noise. Only when I drive it. I had my transmission flushed new spark plugs and a tune up and it still makes noise. Its a 2wd gmc sierra reg cab with 130,000 miles. 5.3 liter v-8 gmc sierra 1500 reg cab
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Thursday, May 24th, 2007 AT 3:24 PM

1 Reply

Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
The best way to go after this is to have it up in the air, either on a lift (best) or jackstands, so that you can run it in drive and locate the source. I assume the rear end fluid was checked?
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Friday, May 25th, 2007 AT 5:01 AM

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