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4l80e shifts to high gear too fast - Cars & Trucks

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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wracefans24
  • 1985 Answers

SOURCE: i have a 2000 chevy with a 4l80e and it shifts

If you have already checked the transmission fluid and it is full,You might want a good tranny shop to check the shift solenoid,

Posted on Jan 23, 2010

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  • 1 Answer

SOURCE: 1991 chev C3500 4L80E transm. won`nt shift out of

try some bar nones trans stop slip

Posted on Feb 20, 2010

  • 53 Answers

SOURCE: 4L80E WITH DTC PO757A 2-3 SHIFT SOLENOID VALVE

it turned out to be the stall in the converter. i needed to install a low stall and the code never came back.

Posted on Mar 16, 2010

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noranda21
  • 1547 Answers

SOURCE: 4l80e transmission will not up shift after rebuild

the internal selinoid has gone bad in the transmission may have caused damage internally in the gears transmission needs to be taken apart and inspected

Posted on Dec 19, 2010

DIESELMUDDER
  • 2760 Answers

SOURCE: Shift problems with 4l80E.

try changing the fluid and filter in trans
work F to R with foot on brake several times with a little gas after new juice in trans to loosten things up again

they gum up from sitting too much over winters and stuff

Posted on Jun 29, 2012

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1 Answer

My 1995 4l80e trans will shift into third only when i floor it but when i let off throttle it seems to go to nutrall and help would be appreashed


run the fault codes and look for faulty servo/solenoids and TCM
it could also be a oil level or oil condition problem
I suggest a visit to an accredited auto shop specialist for a proper diagnosis before you waste money
if a new box is suggested get second and third opinion and quotes

Jul 25, 2015 | 1995 Chevrolet C/K 2500

1 Answer

Transmission


yes the computer uses the speed sensor to tell the trans when to shift. you need to find and plug back in.

Mar 25, 2013 | Cars & Trucks

1 Answer

Shift problems with 4l80E.


try changing the fluid and filter in trans
work F to R with foot on brake several times with a little gas after new juice in trans to loosten things up again

they gum up from sitting too much over winters and stuff

Jun 28, 2012 | Chevrolet G30 Cars & Trucks

1 Answer

4l80e transmission will not up shift after rebuild will not shift out of 1st gear it has reverse


the internal selinoid has gone bad in the transmission may have caused damage internally in the gears transmission needs to be taken apart and inspected

Dec 19, 2010 | 1991 GMC K2500

1 Answer

4L80E trans harsh and late upshifts


Found trans to be a mis build,, had a rear planetary with no reluctor ring for the output speed sensor ,, sensor was picking up a false signal from moving internals. This caused a gear ratio error, wich defaulted the trans and was not contolling the pressure, default pressure went high causing late and harsh shifts .

Feb 10, 2009 | 1996 GMC Suburban

1 Answer

Transmission will only shift first two gears


is the tranny a 4l60e or 4l80e. it may be major internal tranny problems

Nov 12, 2008 | 1995 Chevrolet C/K 2500

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