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4L80E downshift problems/No torque in OD Philip Myers 6-21-10  
I own 1996 Bounder 34J 7.4 engine 4L80E trans.After driving a while,The slightest incline will cause the trans to downshift from OD to 3rd. It appears to be between gears.steadily losing speed,engine overrevs, manually shifting does not seem to help.I did change out input and output solenoids,along with the filter and used Valvoline Maxlife fluid.The upshifts are fine but the downshift still exists. No check engine light.I need help with this.
Thanks for responding
Re: 4L80E downshift problems/No torque in OD Donald 1-13-11  
I have the same problem except my downshift is firm and complete. Any throttle above 50% will cause another downshift. I end up going uphill at half throttle in second gear because the kickdown is so premature. Have you discovered anything to help?
Re: 4L80E downshift problems/No torque in OD Larry 8-21-11  
Same problem what was your fix.
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