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This Is A New One On Me.. Trans Help.. UPDATE.. Same Thing
#1803372
04/14/15 05:19 PM
04/14/15 05:19 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
OP
Master
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OP
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I took the Rampage out for a put to see if it pulled left or
right.. thats fine.. BUT as it shifted through the gears(the
shifter is in drive) as soon as it goes into high gear the
rear tires LOCK UP.. as soon as it down shifts out of high
it frees up.... this is something I have never seen before..
any ideas... that GOD I was taking it easy and was on my street
and no traffic .. because it went side ways on the lock up
thanks
Last edited by MR_P_BODY; 05/08/15 05:26 PM.
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Re: This Is A New One On Me.. Trans Help
[Re: MR_P_BODY]
#1803384
04/14/15 05:30 PM
04/14/15 05:30 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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That is what I call 2-3 tie-up, caused by to fast of a band apply or to quick of a front clutch apply. A 5.1 band lever can cause this and so can removing front drum springs. BUT it should free up if you keep driving, if it is truly locking up, the band is not releasing enough at all.
Mopar to the bone!!!
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Re: This Is A New One On Me.. Trans Help
[Re: 72Swinger]
#1803389
04/14/15 05:35 PM
04/14/15 05:35 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
OP
Master
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OP
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I'll check the band adjustment but I'm sure its backed off 2 1/8 turns... and its locking up.. tires screaming and the back end sliding out side ways 
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Re: This Is A New One On Me.. Trans Help
[Re: MR_P_BODY]
#1803404
04/14/15 05:47 PM
04/14/15 05:47 PM
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Joined: Jan 2003
Posts: 25,726
Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,726
Rio Linda, CA
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If it totally locked up (not just temporary nose over) the front servo isn't releasing....could be broken piston/ring.
The INTERNET, the MISinformation superhighway
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Re: This Is A New One On Me.. Trans Help
[Re: rickraw]
#1803508
04/14/15 07:32 PM
04/14/15 07:32 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
OP
Master
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OP
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Put a gauge in the front test port & run it on jack stands. And what pressure should I see when it locks up EDIT I just checked my 518 book and it calls for 2 turns out on both bands.. I'll check it but I'm sure its there so it must be jammed up in the piston
Last edited by MR_P_BODY; 04/14/15 07:34 PM.
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Re: This Is A New One On Me.. Trans Help
[Re: B1Johnny]
#1803598
04/14/15 09:38 PM
04/14/15 09:38 PM
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Joined: Aug 2003
Posts: 43,096
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,096
Bend,OR USA
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I had the same problem with a 904 I built .they put it in ,took it out and drove it it was locking up in 3rd .I went to the shop and put a pressure guage on the front servowhen it shifted into 3rd it never released the band I checked the linkage adjustment it was off. I put the unit in 3rd and adjusted the cable so it would go right in the problem was fixed.but you know how it is the trans builder is always at fault lol.hope this helps.  Check the shifter cable adjustments, especially in high gear.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: This Is A New One On Me.. Trans Help
[Re: Cab_Burge]
#1803612
04/14/15 09:52 PM
04/14/15 09:52 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
OP
Master
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OP
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I'll check a few things tomorrow.. shifter, band adjustment and if they look good I'll pull the valve body and do a air test on the servo
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Re: This Is A New One On Me.. Trans Help
[Re: 72Swinger]
#1803622
04/14/15 09:59 PM
04/14/15 09:59 PM
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Joined: Feb 2005
Posts: 20,144
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,144
PA.
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That is what I call 2-3 tie-up, caused by to fast of a band apply or to quick of a front clutch apply. A 5.1 band lever can cause this and so can removing front drum springs. BUT it should free up if you keep driving, if it is truly locking up, the band is not releasing enough at all. Matt and I ran into this one to while testing his 727 transmission in the shop on jack stands. The wheels would completely stop in 3rd gear. We removed the aftermarket lever on our CRT transmission and the car ran better than it ever did. Lesson learned and the lever is in my junk pile on the shelf.
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: This Is A New One On Me.. Trans Help
[Re: pittsburghracer]
#1803648
04/14/15 10:17 PM
04/14/15 10:17 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
OP
Master
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OP
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I have the factory lever on it.. I'll check things out tomorrow EDIT I sure hope its something as simple as the cable adjustment
Last edited by MR_P_BODY; 04/14/15 10:20 PM.
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Re: This Is A New One On Me.. Trans Help
[Re: MR_P_BODY]
#1804135
04/15/15 01:27 PM
04/15/15 01:27 PM
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Joined: Jul 2006
Posts: 4,319
Puyallup, WA
StealthWedge67
master
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master
Joined: Jul 2006
Posts: 4,319
Puyallup, WA
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had this happen on mine when I installed the first T-A valve body. Luckily, my car was still on jack stands when I found it. Talked with Paul Forte about it over the phone, and he was convinced I had done something wrong (as was I), but agreed to take a look at the valve body, so I sent it to him. He called me a week later, said he had installed it into his test vehicle and it did the same thing. Locked up in D. He appologized profusely and sent me a new valve body which worked fine. My point is simply that it could be in the valve body (???).
Last edited by StealthWedge67; 04/15/15 01:30 PM.
LemonWedge - Street heavy / Strip ready - 11.07 @ 120
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Re: This Is A New One On Me.. Trans Help
[Re: StealthWedge67]
#1804163
04/15/15 01:57 PM
04/15/15 01:57 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
OP
Master
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OP
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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had this happen on mine when I installed the first T-A valve body. Luckily, my car was still on jack stands when I found it. Talked with Paul Forte about it over the phone, and he was convinced I had done something wrong (as was I), but agreed to take a look at the valve body, so I sent it to him. He called me a week later, said he had installed it into his test vehicle and it did the same thing. Locked up in D. He appologized profusely and sent me a new valve body which worked fine. My point is simply that it could be in the valve body (???). I checked the cable adjustment on the shifter.. that was perfect and I checked the band adjustment which was good.. it still locked up but its on the hoist now...now I'm getting ready to drop the pan and the valve body... I'm gonna do a air check on the servo to see if its moving freely and for a crack in it EDIT Anyone have any other ideas before I drop the pan.... by the way I checked the cable in low and in drive positions and both were perfect
Last edited by MR_P_BODY; 04/15/15 01:59 PM.
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Re: This Is A New One On Me.. Trans Help
[Re: MR_P_BODY]
#1804182
04/15/15 02:27 PM
04/15/15 02:27 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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I think there is a port at the band servo for external access if you have a pressure gauge? Maybe im dreaming, but that it about it without dropping the pan.
Mopar to the bone!!!
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Re: This Is A New One On Me.. Trans Help
[Re: 72Swinger]
#1804192
04/15/15 02:36 PM
04/15/15 02:36 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
OP
Master
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OP
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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UPDATE I tested it with the OD OFF and it doesnt lock up.. flip the OD ON and it locks up... so it has something to do with the OD... now the next question is... what would happen IF I might have the wires wrong and am trying to engage the lock up in the conv ... but I dont have a lock up conv... would it direct fluid to something that can lock it up 
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Re: This Is A New One On Me.. Trans Help
[Re: MR_P_BODY]
#1804217
04/15/15 03:25 PM
04/15/15 03:25 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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IM out, forgot all about you having a 518. Im no help there.
Mopar to the bone!!!
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Re: This Is A New One On Me.. Trans Help
[Re: 72Swinger]
#1804224
04/15/15 03:34 PM
04/15/15 03:34 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
OP
Master
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OP
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I might be running in uncharted waters here... being that I am running a 518 that uses JUST OD... thats why I am wondering if I hooked up the OD and LU solenoids backwards and instead of energizing the OD solenoid I am energizing the LU solenoid and without a LU conv what would happen... I still want to do another test to verify this.. I should see the wheel speed and the tach change if I flip the switch in 2nd gear( this trans is in OD any time its engaged in the forward gears)
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