Thread: lost first gear and will not downshift

Results 1 to 20 of 27

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. #1 Re: lost first gear and will not downshift 
    SE Level Member bigdawg00's Avatar
    Join Date
    Sep 2010
    Location
    Florence, Ky
    Posts
    18
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Ok. I went and got a multimeter. Ok, from what I'm getting is that I check resistance from tcc fuse and at the pcm connector. Do I unplug the pcm or leave it plugged in? And what pins do I check?
    Reply With Quote  
     

  2. #2 Re: lost first gear and will not downshift 
    SE Level Member bigdawg00's Avatar
    Join Date
    Sep 2010
    Location
    Florence, Ky
    Posts
    18
    Thanks (Received)
    0
    Likes (Received)
    0
    Dislikes (Received)
    0
    Ok. Wiring all checks out. I'm thinking now it the ecm. Is that uncommon for the ecm to go bad and cause it to blow the tcc fuse?
    Reply With Quote  
     

Similar Threads

  1. Downshift???
    By TheNoob23 in forum 1997-2007 4 speed Automatic (4T65E) (4T65E-HD)
    Replies: 12
    Last Post: 02-11-2011, 05:29 PM
  2. new pcm. hard downshift from 2nd to 1st at stops??
    By colindunn in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 15
    Last Post: 09-18-2010, 07:10 PM
  3. tranny wont downshift
    By copperpacecar in forum 1997-2007 4 speed Automatic (4T65E) (4T65E-HD)
    Replies: 7
    Last Post: 06-19-2010, 12:26 PM
  4. Downshift hesitation
    By rocket69GTP in forum 1997-2007 4 speed Automatic (4T65E) (4T65E-HD)
    Replies: 0
    Last Post: 05-08-2010, 10:05 PM
  5. lost all gears and stuck in gear 1!!!
    By fst in forum 1997-2007 4 speed Automatic (4T65E) (4T65E-HD)
    Replies: 59
    Last Post: 04-27-2008, 10:29 AM
Tags for this Thread

View Tag Cloud

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •