Question about 1995 GMC Yukon

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Lost reverse in my 1995 GMC Yukon 4wd. Other gears are working. Is my tranny shot or is it something else?

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Usually when you loose reverse in this transmission it it because the reaction shell strips or breaks do to high line pressure caused by a P01870 code being pressent.Another common cause is the needle bearing on the input drum/shaft breaks up and the pieces get lodged in the reverse input drum and keep those clutches from applying.Long and short is there is no simple fix,adjustment,or sensor that will keep you from having reverse.It is time for major transmission repair.Let me know if I can help in anyway.Thanks David@FIXYA

Posted on Mar 21, 2011

  • Donald Britton
    Donald Britton Mar 21, 2011

    Sorrry let try transdoc@FIXYA



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SOURCE: Lost reverse in my 1995

I'd try replacing the shift modulator before any thing else. $20 screws in to side of ****** with vacuumn hose attached

Posted on Sep 16, 2011

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1 Answer

1995 gmc Yukon. Reverse will not engage. It just revs. All other gears work/drive fine.

No reverse on this model almost always means a cracked cage in the transmission.Good news is you just have to have the cage changed and not much else and all should be fine and won't cost too much.

Feb 14, 2018 | GMC Cars & Trucks

1 Answer

Lost reverse in my 1995 Yukon 4wd, still have all other gears. Is my tranny shot or could it be something else?

I'd try replacing the shift modulator before any thing else. $20 screws in to side of ****** with vacuumn hose attached

Mar 21, 2011 | 1995 GMC Yukon

1 Answer

My Yukon has 226,000 mostly highway miles on it.

hate to say it but your tranny is shot..this is a common transmission,check your local junk yard for a good used one..

Dec 12, 2009 | 1999 GMC Yukon

2 Answers

Lost reverse on GMC Yukon Denali vortex drives forwrd here a little wind

WOW sorry to hear that.

this is a common problem with the 4l60e transmission, what has happend is the gear has sheared off the back of the sun shell, you should have lost reverse and if you will watch your tachometer the next time you drive you will notice you allso lost forth gear.

you will nedd to have the transmission removed and disassembled for the new sun shell, make sure you get the hardened sun shell, this is not a rebuild but simply a repair. you can get a stock sun shell for about $65.00 or a heavy duty one for about $100.00, make sure you find a good tranny guy to provide the labor, oh the transmission paper rubber kit "reseal kit" shouldnt be more than about $80.00

good luck

Jun 14, 2009 | 2001 GMC Yukon Denali

1 Answer

Tranny makes noise in 1st gear then goes away in 2nd gear

It could be the U joints in your drive shaft. If there is no problem to the transmission as to it's performance other then the squeaking noise in revers or slow speeds. Most likely it's going to be the U joint, the factory U joints don't have grease fitting and only have a life time of service.
The u joints may have reached it's life time and need to be replaced. You have two of them and most of the time it's just one that goe's bad, but changed them both since the drive shaft needs to be removed from the truck.
Good luck and hope this helps.

May 13, 2009 | 1997 GMC Yukon

1 Answer

Lost reverse, sluggish 1st gear

You will need to get the Tranny Shift Kit Inspected for Shifting Ball Slippage. Should not be a Big Repair unless it messed up the Clutches inside the Tranny.

Jan 18, 2009 | 1998 GMC Yukon

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