1995 GMC Vandura 3500 automatic does not go into 1st gear after a full stop. It will go into 1st manually but will then not shift into 3rd. Currently shifts into 3rd but won't shift 1st on its own.

SOURCE: 1995 GMC 2500 4x4 wont shift into 3rd or overdrive most of the times

i have heard that the ignition switch can be faulty and not let the full voltage thru to the electricaly controlled 4l60e trans.i have the same problem with my 95 1/2 t. i rigged a switched wire from the fuse block via a relay to the proper wire on the trans....ask a trany tech and they will know what im talking about,,,good luck

Marvin

• 85242 Answers
• Posted on Nov 02, 2008

SOURCE: 97 gmc pickup with automatic transmission trouble

1st thing to do is test the system for codes, the problem is most likely a failed or stuck shift solenoid indside the trans, have you ever serviced the trans, sometimes a fluid and filter cahnge will cure these kinds of issues.

SOURCE: 1996 3500 TRUCK WON'T SHIFT OUT OF SECOND INTO 3RD OR OVERDRIVE

Their are a few possible causes of this. One their is not enough tranny fluid in it or the kick down cable is not hooked up properly. the kick down cable also runs the vacume to the transmission.

Check theese and give me feed back to further assist you.

Thanks, Charlie

SOURCE: Transmission wont shift into 3rd gear.

I had this exact problem on my 2005 5.3L Suburban... It would shift into 1 and 2 and reverse, but not 3 and 4.

I took it into a transmission shop, and he said the 3-4 shift solenoid was burned up. Wanted 1500 to fix it. Far from home, so I have to pay it.

SOURCE: 1996 gmc suburban transmission shift problem

96 gm trucks had a proble with third gear burning out because of a ground issue from pcm..there was a bulletin for adding a new ground for third gear control circuit...aftermarket trans shops do not remember this problem and it is often overlooked..take to local dealership and you should be able to get problem resolved