GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

4l80 has no reverse

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Old 08-14-2005 | 03:14 PM
  #11  
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Originally Posted by BLOWN 364
She's in the wedding party.She's been there since 7.30am.I not going till 3.30pm.

Take the Honda..

Hey I put my new Bumper on.....now all I need is my rear brakes installed
Old 08-14-2005 | 03:38 PM
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Originally Posted by BlownChevy
Take the Honda..

Hey I put my new Bumper on.....now all I need is my rear brakes installed
Honda is at the shop.

Make a appointment for monday.
Hope to get some more feedback on trans. problem from you guys while at the wedding.

Thanks.
Old 08-14-2005 | 04:04 PM
  #13  
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Originally Posted by BLOWN 364
Honda is at the shop.

Make a appointment for monday.
Hope to get some more feedback on trans. problem from you guys while at the wedding.

Thanks.

Flush your trans...I am willing to bet that there is some debris in there.......

I will leave my keys with you on Tuesday night, take the truck on Wend while I am gone.
Old 08-16-2005 | 11:23 PM
  #14  
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Try something. Set the gear selector to "2" and get to about 25mph, no hurry. Holding at 25mph take your foot off the gas while downshifting to "1". The truck should lunge forward as engine braking slows you down in first gear. If it doesn't, and feels like nothing happened, the rear band is not engaging. There is only one other thing that band does in a 4L80-E, it's reverse. Could be broken band, piston seal, valve body gasket blowout, etc...
Old 08-17-2005 | 01:03 AM
  #15  
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Unhappy 4l80 update so far

Power brake stall
1st good
2nd no good stalls to high with no power from gear to spin tires
3rd good
4th good

going to try your tip in the morning James b. thanks

probably going to remove trans for a better inspection/freshin up/rebuild? and send converter out to lower stall 3000=3800 to 4000

thanks everybody for your help
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