new here having trans problems - Competition Diesel.Com

Zippo3 · 10-19-2014, 12:26 PM

Joined up to try to find answers as to why my tranny quit, but no luck finding any post related to my problem. Not sure which forum to post it in it's a 96 Ram 2500 cummins. I bought the truck with a bad TPS, pevious owner had wired in a pot under the dash to make it work. I put a TPS on it, took it for a short 3 mile drive half way I took it easy and everything seemed perfect, shift points good and smooth. I then dropped to 45 mph kicked it to test for kick down and it dropped to 3rd perfectly, shifted to overdrive at about 65 then the lock up kicked in at about 70. then I lost all gears no movement in any gear. Park does still work. Truck basically stock as far as I know, bought it from an escort service, so doubt any mods done to it, AFC still has tamper proof bolts. Checked fluid after sitting overnight and it was way above full, cranked it up and put it in neutral, let it run for a bit then checked fluid and it was just under the full mark but above the add mark, so pump seems to be pumping. not sure where to go from here any input or a link to any help would be very much appreciated.

Thanks for your time

CREED1 · 10-19-2014, 02:43 PM

Can you feel it bump into gear when you go to say drive or reverse? Just no movement?

Zippo3 · 10-19-2014, 05:02 PM

I don't feel anything, even holding it at 2,000 rpm, no movement of no kind. I crawled under it and had my wife shift thru the gears and didn't hear any grinding or unusual noises, can't say if the cluthches are trying to engage or not, it has a straight exhaust and can't hear if anything is engaging or not, thinking not. All I can feel is the detents of the shifter going from one gear to another.

Thanks for the help

fox · 10-20-2014, 03:33 PM

Pressure test it.
I suspect the input shaft broke.

Zippo3 · 10-20-2014, 06:33 PM

Got my gauges from the shop today, hoping to get someone to help me tomorrow to do the test. I will post the results of the test tomorrow.

Thanks

Zippo3 · 10-20-2014, 07:02 PM

I just found another 96 identical to mine except it has power seats and electric mirrors, but it has a bad pcm. Would the pcm out of mine work in it? Should I do any sensor testing or anything to ensure it doesn't burn up my pcm?

Thanks for any help

Zippo3 · 10-21-2014, 01:24 PM

Results of pressure test Accumulator port, P R N 0 psi, D 2 1 58 - 97 with throttle lever movement.

Rear Servo, P N D 2 0 psi, L 58 -97, R 158 - 260 with throttle lever movement

Front Servo and Governor ports 0 psi, no change with rpms or throttle lever movement. But remember I have no wheel rotation for the gov port to read or test OD port.

Thanks for anyone that might can help with this, the service manual doesn't say much about 0 pressure on front servo, other than low pressure on front servo.

*LAmiller* · 10-21-2014, 03:04 PM

You have line pressure and no movement. You can be sure you have a broken hard part, most likely the input shaft. Could have cracked the hub and the shaft stripped the splines out of the hub, not hard to fix, but requires removing transmission and tearing it down.

Lavon

*1ATony* · 10-23-2014, 10:14 AM

Thanks for joining

10-19-2014, 12:26 PM	#1
Zippo3 Name: Zippo3 Title: Rookie Status: Not Here Join Date: Oct 2014 Member`s Gallery Posts: 5	new here having trans problems Joined up to try to find answers as to why my tranny quit, but no luck finding any post related to my problem. Not sure which forum to post it in it's a 96 Ram 2500 cummins. I bought the truck with a bad TPS, pevious owner had wired in a pot under the dash to make it work. I put a TPS on it, took it for a short 3 mile drive half way I took it easy and everything seemed perfect, shift points good and smooth. I then dropped to 45 mph kicked it to test for kick down and it dropped to 3rd perfectly, shifted to overdrive at about 65 then the lock up kicked in at about 70. then I lost all gears no movement in any gear. Park does still work. Truck basically stock as far as I know, bought it from an escort service, so doubt any mods done to it, AFC still has tamper proof bolts. Checked fluid after sitting overnight and it was way above full, cranked it up and put it in neutral, let it run for a bit then checked fluid and it was just under the full mark but above the add mark, so pump seems to be pumping. not sure where to go from here any input or a link to any help would be very much appreciated. Thanks for your time

10-19-2014, 05:02 PM	#3
Zippo3 Name: Zippo3 Title: Rookie Status: Not Here Join Date: Oct 2014 Member`s Gallery Posts: 5	I don't feel anything, even holding it at 2,000 rpm, no movement of no kind. I crawled under it and had my wife shift thru the gears and didn't hear any grinding or unusual noises, can't say if the cluthches are trying to engage or not, it has a straight exhaust and can't hear if anything is engaging or not, thinking not. All I can feel is the detents of the shifter going from one gear to another. Thanks for the help Last edited by Zippo3; 10-19-2014 at 05:04 PM.

10-20-2014, 03:33 PM	#4
fox Name: fox Title: Too Much Time Status: Not Here Join Date: Dec 2008 Location: central Illinois Member`s Gallery Posts: 908	Pressure test it. I suspect the input shaft broke. __________________ 1998 12 valve 4x4 2500 auto trans.

10-21-2014, 03:04 PM	#8
LAmiller Name: LAmiller Title: THE KT-BOUNDARY Status: Not Here Join Date: Aug 2006 Location: Plain City, OH Member`s Gallery Posts: 3,603	You have line pressure and no movement. You can be sure you have a broken hard part, most likely the input shaft. Could have cracked the hub and the shaft stripped the splines out of the hub, not hard to fix, but requires removing transmission and tearing it down. Lavon __________________ 04.5 QDLB 4x4 Diesel Power Challenge 2014/2015 Champion, ODSS 6.70 Points Champion 2015/2016 06 RaceCab 4x4 Ulimate Callout Challenge 2016, 2017, 2018 Champion, ODSS Pro Street Points Champion 2016 2016 QDLB 4x4, Firepunk EZLynk. http://www.shop.firepunk.com

10-23-2014, 10:14 AM	#9
1ATony Name: 1ATony Title: Comp Diesel Sponsor Status: Not Here Join Date: Oct 2012 Member`s Gallery Posts: 508	Thanks for joining __________________ TOW MIRRORS\|LIGHT BARS\|TONNEAU COVERS\|REPAIR PARTS

10-19-2014, 02:43 PM	#2
CREED1 Name: CREED1 Title: Throwed Off Status: Not Here Join Date: Jul 2007 Location: Cleveland, Tx Member`s Gallery Posts: 2,880	Can you feel it bump into gear when you go to say drive or reverse? Just no movement?

10-20-2014, 06:33 PM	#5
Zippo3 Name: Zippo3 Title: Rookie Status: Not Here Join Date: Oct 2014 Member`s Gallery Posts: 5	Got my gauges from the shop today, hoping to get someone to help me tomorrow to do the test. I will post the results of the test tomorrow. Thanks

10-20-2014, 07:02 PM	#6
Zippo3 Name: Zippo3 Title: Rookie Status: Not Here Join Date: Oct 2014 Member`s Gallery Posts: 5	I just found another 96 identical to mine except it has power seats and electric mirrors, but it has a bad pcm. Would the pcm out of mine work in it? Should I do any sensor testing or anything to ensure it doesn't burn up my pcm? Thanks for any help

10-21-2014, 01:24 PM	#7
Zippo3 Name: Zippo3 Title: Rookie Status: Not Here Join Date: Oct 2014 Member`s Gallery Posts: 5	Results of pressure test Accumulator port, P R N 0 psi, D 2 1 58 - 97 with throttle lever movement. Rear Servo, P N D 2 0 psi, L 58 -97, R 158 - 260 with throttle lever movement Front Servo and Governor ports 0 psi, no change with rpms or throttle lever movement. But remember I have no wheel rotation for the gov port to read or test OD port. Thanks for anyone that might can help with this, the service manual doesn't say much about 0 pressure on front servo, other than low pressure on front servo.