1995 auto Trans not shifting into 3rd.
#2326466
06/25/17 03:44 PM
06/25/17 03:44 PM
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Joined: Jan 2003
Posts: 3,136 Palm Coast, FL (near Daytona B...
Blown_Hemi
OP
master
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OP
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Joined: Jan 2003
Posts: 3,136
Palm Coast, FL (near Daytona B...
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Just picked up a 2500 Cummins and it will not shift into 3rd. I can lift off the throttle and it will up shift but sometimes takes awhile. Any ideas?
Ask me my opinion of Frank Mitchell....... A Mopar crook!
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Re: 1995 auto Trans not shifting into 3rd.
[Re: J_BODY]
#2326769
06/26/17 04:24 AM
06/26/17 04:24 AM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
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Posts: 27,421
Balt. Md
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front clutch piston seals is the first thing that comes to mind. Same here. I remember some models we had updated front drum , piston and seals for that type of problem. But I dont remember which models and years it was as I would have to look it up but I do remember replacing them during the 90's on some for that problem when everything else was working correct. Reverse usually still worked ok since it runs with much higher pressure. Ron
Last edited by 383man; 06/26/17 04:28 AM.
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Re: 1995 auto Trans not shifting into 3rd.
[Re: A727Tflite]
#2327645
06/27/17 06:54 PM
06/27/17 06:54 PM
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Joined: Jan 2003
Posts: 3,136 Palm Coast, FL (near Daytona B...
Blown_Hemi
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master
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OP
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Joined: Jan 2003
Posts: 3,136
Palm Coast, FL (near Daytona B...
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Your description is not very clear or complete. Does it get third when you tip out of the throttle all the time but not when you are on the throttle? Or never gets third? Does it have reverse all the time? Or no reverse? If you have reverse and get third on tip out - check the throttle kick down cable for freeness. There should be a return spring from the throttle lever to a bracket at the trans end. Check and make sure this cable goes wide open then returns all the way forward before doing anything else. Shifts fine when cold, 1st, 2nd, 3rd, OD. When warm takes awhile and about 2500 rpms before it shifts to 3rd. Reverse is fine. If I lift off the throttle it usually go into 3rd. I will check the throttle cable. Yes, return spring is intact.
Last edited by Blown_Hemi; 06/27/17 06:58 PM.
Ask me my opinion of Frank Mitchell....... A Mopar crook!
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Re: 1995 auto Trans not shifting into 3rd.
[Re: Blown_Hemi]
#2327654
06/27/17 07:11 PM
06/27/17 07:11 PM
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Joined: Jan 2003
Posts: 25,967 Rio Linda, CA
John_Kunkel
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Too Many Posts
Joined: Jan 2003
Posts: 25,967
Rio Linda, CA
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Even though the front clutch is also used in Reverse, a strong Reverse is no proof that the clutch is good because the line pressure increases dramatically in Reverse; so a weak clutch will still appear to be OK in Reverse.
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