Question about 1994 Chevrolet Sportvan G30

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My 4l80e transmission will not shift out of first gear

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Molson02536
  • 3854 Answers

SOURCE: transmission will not shift

Check the Vehicle Velocity Sensor (V V S)-(Speed Sensor) or the wire harness to the VVS. IF the ECM is not getting a signal from the V V S, the PCM can not give the signal to switch gears. The V V S is on the drivers side of the end ot the transmission that is held on by one bolt. Best thing to do is to have the truck scanned at Auto Zone for a DTC code and to confirm that the V V S has gone bad and they can give you the step by step instruction to replacing the sensor and takes about 15 min to do. Good luck and keep me posted. Keep an eye on the transmission fluid, make sure you don't run the transmission to hard and burn it out over a $40.00 sensor which is better then $1,800 for a transmission replacement. 

Posted on Jun 22, 2009

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  • 226 Answers

SOURCE: My name is Kenny from Dalas, Texas I have a 95 1

Shifting hard goes to line pressure. Check the filter you put in. There's a short version and a long version. If you have the long version in there, it will bottom out in the pan. Do not change the solenoids because it already shifts differently after changing the filter.

Posted on Aug 16, 2009

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

  • 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

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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Related Questions:

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

I have a 1990 GMC Suburban. The transmission is slipping. I still have reverse, 1st, and can manually shift into second. No 3rd or overdrive... it just slips. What should I look for?


is it a 4l80e electronic shift transmission....it may be an issue with the solenoid pack...you can take it to someone who has a scanner tool for the trans...if it is indeed a 4l80e

Oct 28, 2011 | 1990 GMC Suburban

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

Changing Transmission


nop the 4l80E is an elitric shift trans

Jan 14, 2010 | 1991 Chevrolet C/K 2500

1 Answer

I have a 2000 chevy 2500 series 4x4 silverado truck with 6.0 liter v8 and a 4l80e automatic transmission in it. It won't shift up into third. Can you HELP PLEASE?


if it won't shift into 3rd either automatically or manually, then your 3rd/4th gear clutch is worn out. You're probably looking at a rebuild.

Sep 23, 2009 | 1999 Chevrolet K2500

3 Answers

Will a 1994 chevy 4l80e 4wd swap into a 1995 GMC


Yes they will swap out nicely, the years where they made the change is in 1997 and the only difference is the transmission end housing has a different bolt pattern but has the same internal parts. You may also want to swap out the servo's with a corvette servo. The cost is around $45.00 and can be done without dropping the transmission pan, this will make your transmission shift firmer and will have less clutch slip[ between gear shifts. Good luck and hope this information helps. 

Aug 19, 2009 | 1995 GMC Sierra

3 Answers

4L80E trans. Lost passing gear/overdrive suddenly


Bad transmission, that's not a good answer. Bring it to the shop [so we can guess around], not a good answer either.

A good mecahanic will respond with something about the solenoids.

I have repaired the 4L80E on my tow truck, I have to do that almost every year, the last time it ran perfectly but when I push the pedal to the metal, it shifted from 3rd gear to 2nd and stays on 2nd gear until I turn the ignition off and start again.

The transmission was totally rebuilded so the answer "Time to rebuilt the transmission" is not acceptable.

I took it back to the shop and the mechanic replaced both solenoids A and B, that was the only thing that hasnt been replaced before, it was just a guess but works

So, I am not a mechanic but my sugestion is to replace the two speed sensors and solenoids before you take the tranny out of the car and be carefull who are you taking the transmission to because guessing is not always the best course of action

The two speed sensors are easy to replace, the solenoids are inside of the valve body but you may be able to replace them without removing the transmission from the truck

Jul 15, 2009 | Chevrolet Suburban 2500 Cars & Trucks

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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