Minivan tranny slipping out of gear *Update*
#1744943
02/02/15 04:35 PM
02/02/15 04:35 PM
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Joined: Jan 2003
Posts: 942 Virginia, US
RTDaddy
OP
super street
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OP
super street
Joined: Jan 2003
Posts: 942
Virginia, US
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OK, got into it, filter loose, and O-ring missing, (sucking air). Good news: apparently no more acting like it's not in gear. Bad news: now tranny is hard down-shifting (noticable jolt) when coasting down to a stop. Seems to be 3 to 2nd downshift. Fluid level checks OK hot and cold. Only thing done was new filter (factory replacement), and Fluid, (Castro ATF 4+). Any Ideas? Would sucking air have damaged tranny and caused this? Vehicle 03 Chry T & C, v-6, w/107k miles. Any ideas appreciated.
"IF YOU'RE UNDER CONTROL, YOU AIN'T GOING FAST ENOUGH."
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Re: Minivan tranny slipping out of gear *Update*
[Re: RTDaddy]
#1744944
02/02/15 08:20 PM
02/02/15 08:20 PM
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Joined: Jun 2008
Posts: 1,822 Colorado
denfireguy
top fuel
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top fuel
Joined: Jun 2008
Posts: 1,822
Colorado
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Is it a down shift or the lock up torque convertor slow to unlock?
2014 Ram 1500 Laramie, 73 Cuda Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango Only previous Non-Mopar: Schwinn Tornado
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Re: Minivan tranny slipping out of gear *Update*
[Re: zrxkawboy]
#1744947
02/03/15 02:01 AM
02/03/15 02:01 AM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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It needs to have the trans module "quicklearned" to restet the addaptive memory. What happened was because of the delayed going in gear the CVI count went up on the Underdrive clutch and now the trans controller cycle's the solenoid faster to engauge the underdrive clutch faster since it was delayed with the problem. Well when it downshifts from 4th to 3rd (which is the downshift bang you feel) it releases the 2-4 clutch and applies the underdrive clutch for 3rd gear and since the CVI count is still high it hits hard. I used to see this all the time in the dealer as we had pump problems which did the same thing. Once you have the Quicklearn done or restet it should stop the bang and adaptime memory will learn the shifts to make it feel even better. It will eventually relearn on its own but it will take a while. At the dealer I could reset the trans memory (quicklearn) with the scanner tool and roadtest it in the 1/2 hr time we were paid with no problem. Ron
Last edited by 383man; 02/04/15 03:26 AM.
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Re: Minivan tranny slipping out of gear *Update*
[Re: RTDaddy]
#1744949
02/03/15 03:44 PM
02/03/15 03:44 PM
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Joined: Feb 2006
Posts: 357 Stoney Creek, Ontario, Canada
76Beeper
enthusiast
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enthusiast
Joined: Feb 2006
Posts: 357
Stoney Creek, Ontario, Canada
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Ah, the infamous "bumpshift". Like Ron says, the control module needs to relearn. There's a little more involved than just disconnecting the battery. Once both battery cables are off the battery, touch the two cables together (for about 10 seconds). The control module has memory that needs to be dumped, by touching the battery cables it does that. DAHIK True, it will take a while for the tranny to relearn, it won't happen right away.
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Re: Minivan tranny slipping out of gear *Update*
[Re: zrxkawboy]
#1744950
02/03/15 07:23 PM
02/03/15 07:23 PM
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Joined: Jan 2003
Posts: 942 Virginia, US
RTDaddy
OP
super street
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OP
super street
Joined: Jan 2003
Posts: 942
Virginia, US
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Quote:
(Castro ATF 4+). Any Ideas?
Yeah, that Cuban ATF might have done it, too.
That's good one kawboy. "Flying fickle finger of fate" obviously quicker than the brain on that one.
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Re: Minivan tranny slipping out of gear *Update*
[Re: RTDaddy]
#1744954
02/05/15 12:33 AM
02/05/15 12:33 AM
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Joined: Jun 2003
Posts: 21,762 It's a dry heat
gtx6970
Too Many Posts
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Too Many Posts
Joined: Jun 2003
Posts: 21,762
It's a dry heat
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Quote:
Ron, Thanks for the insight. Any idea on what kind of charge I should be looking for for the "quicklearn" at a dealer?
"IF YOU'RE UNDER CONTROL, YOU AIN'T GOING FAST ENOUGH."
around here if they write a ticket on it figure a half hour labor time of what ever there shop rate is. Any higher look somewhere else . It'll take them all of 5 minutes to do it.
My local dealers trans tech charges me $20 out the back door
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Re: Minivan tranny slipping out of gear *Update*
[Re: Moparnut426]
#1744956
02/05/15 01:48 AM
02/05/15 01:48 AM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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By all means if you have a buddy that can quicklearn it for you have him do it. We used to get .5 a half hr to do it and roadtest it. When I left in 20011 we were at $100 per hr at the dealer in Md I worked at but we had a set price for the quicklearn of about $45 dollars but by all means shop around for a good price if you dont have a friend that can do it. Sometimes at our dealer the cust price could even depend on which service writer you delt with. Ron
Last edited by 383man; 02/05/15 01:50 AM.
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