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Tranny diagnosis

 
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Chuck
Site Admin


Joined: 12 Oct 2002
Posts: 1208
Location: Grass Valley, Ca.
Post subject: Tranny diagnosis (Sat Feb 25, 2012 8:47 pm) Reply with quote
I have a rebuilt tranny ready to go in my Dart but I want ti pre-diagnose the old one so I can make sure I correct the problem. When I start out in Drive, it shifts 1,2,3,2, and stays in 2nd, no matter how fast I go. It only stays in 3rd for less than a second. I am thinking maybe a stuck governor. Any other ideas on what I should be looking for?



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bigslant6fan
Turbo Slant 6


Joined: 09 Aug 2008
Posts: 516
Location: Taneytown, MD
Post subject: . (Sun Feb 26, 2012 12:03 am) Reply with quote
By all means,do the factory pressure tests first. Did this trans always have this problem,or did it just start one day? Does it work OK in reverse? I agree, it sounds like a governer or valve body problem



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Chuck
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Joined: 12 Oct 2002
Posts: 1208
Location: Grass Valley, Ca.
Post subject: (Sun Feb 26, 2012 2:18 pm) Reply with quote
It just started one day. Works OK in reverse.



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WagonsRcool
EFI Slant 6


Joined: 02 Apr 2011
Posts: 304
Location: New Jersey USA
Post subject: (Sun Feb 26, 2012 3:52 pm) Reply with quote
You need a 300psi pressure guage connected to the pressure test ports on the trans. It could be governor- pressure should increase steadily with vehicle speed. My bet is on a valve body problem.



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