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Thread: 4L80E Shifts out of Overdrive/4th Gear

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  1. #1
    Join Date
    Dec 2003
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    Yukon Canada
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    My Buddys son was having trouble with his gasser EL60E and it turned out to be his throttle position sensors.
    Shifting issues were his problem,but i can not tell you what exactly they were.He was looking for a replacement tranny and had his truck parked.Then he found out about the throttle position sensor issue.And the rest is history.
    90 Chev 3500 c/c 4x4,6.2na,400 auto,4:10 gears.DSG Timing gears,main girdle, isspro tach, pyro,boost,oil and trany temp.Dual Tstats, High volume peninsular pump,on shelf, Custom turbo and intercooler 85%complete. Change of plans for the dually, it's going to get a Cummins. Both trucks are Blue 90 4x4 crews

  2. #2
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    New Hampshire - Live Free or Die
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    If shutting it off and restarting it "cures" the problem than there's probably one or more codes being stored.
    The Constitution needs to be re-read, not re-written!

    If you can't handle Dr. Seuss, how will you handle real life?

    Current oil burners: MB GLK250 BlueTEC, John Deere X758
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    Gone but not forgotten: '87 F350 7.3, '93 C2500 6.5, '95 K2500 6.5, '06 K2500HD 6.6, '90 MB 350SDL, Kubota 7510

  3. #3
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    Jan 2015
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    Alvin, Texas
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    Quote Originally Posted by JohnC View Post
    If shutting it off and restarting it "cures" the problem than there's probably one or more codes being stored.
    It's not showing a check engine light but I will get a scan tool and check it for sure.
    MikeyG1975
    Engine Machinist/Custom Builder, Mechanic, currently Offshore Oilfield Mechanic/Machinist
    Too many projects to list...
    2012 Ram 2500 Laramie Longhorn Mega Cab, 6.7L Cummins TD, Deleted, PPEI EFI Live Programmer, Economy Tow Tune, Auto, leveled, 35's, 4" Flo-Pro Turbo Back Exhaust...
    1993 Chevy K3500 Crew Cab Long Bed Dually, 6.5 TD Auto, Turbo-Back Diamond Eye Exhaust, Heath 2.5" Crossover pipe, otherwise stock, upgrades planned...
    1994 Chevy C1500 Extended Cab Long Bed, 2 WD, 5.7 Gas-Sold
    1979 Chevy Camaro-Z28, fully restored
    1979 Chevy Camaro Rally Sport project car

  4. #4
    Join Date
    Jan 2015
    Location
    Alvin, Texas
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    Quote Originally Posted by Yukon6.2 View Post
    My Buddys son was having trouble with his gasser EL60E and it turned out to be his throttle position sensors.
    Shifting issues were his problem,but i can not tell you what exactly they were.He was looking for a replacement tranny and had his truck parked.Then he found out about the throttle position sensor issue.And the rest is history.
    I thought about that, I'm going to get a scan tool and see if it's throwing any codes, and with TPS sensors being cheap and plentiful, maybe I'll throw one on there and see what happens.
    MikeyG1975
    Engine Machinist/Custom Builder, Mechanic, currently Offshore Oilfield Mechanic/Machinist
    Too many projects to list...
    2012 Ram 2500 Laramie Longhorn Mega Cab, 6.7L Cummins TD, Deleted, PPEI EFI Live Programmer, Economy Tow Tune, Auto, leveled, 35's, 4" Flo-Pro Turbo Back Exhaust...
    1993 Chevy K3500 Crew Cab Long Bed Dually, 6.5 TD Auto, Turbo-Back Diamond Eye Exhaust, Heath 2.5" Crossover pipe, otherwise stock, upgrades planned...
    1994 Chevy C1500 Extended Cab Long Bed, 2 WD, 5.7 Gas-Sold
    1979 Chevy Camaro-Z28, fully restored
    1979 Chevy Camaro Rally Sport project car

  5. #5
    Join Date
    Dec 2003
    Location
    Yukon Canada
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    1,633

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    Quote Originally Posted by mikeyg1975 View Post
    I thought about that, I'm going to get a scan tool and see if it's throwing any codes, and with TPS sensors being cheap and plentiful, maybe I'll throw one on there and see what happens.

    Hi No codes were thrown on his truck...
    90 Chev 3500 c/c 4x4,6.2na,400 auto,4:10 gears.DSG Timing gears,main girdle, isspro tach, pyro,boost,oil and trany temp.Dual Tstats, High volume peninsular pump,on shelf, Custom turbo and intercooler 85%complete. Change of plans for the dually, it's going to get a Cummins. Both trucks are Blue 90 4x4 crews

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