A670 (31TH) Transmission Help
#1
A670 (31TH) Transmission Help
Hi,
I have a 1998 Grand Caravan with a 3.0L and 3 Speed Transmission that just started slipping today (from a stop) and also not shifting from 1st to 2nd until RPM's are substantially higher than whats "normal" for it.
Any ideas on where to start? DIY Rebuild, Fluid & Filter Change, or Re-manufactured??
Here's the stats: 174,500 miles. Transmission was rebuilt at 58,000 (now has 116,500) on it. I performed flush, filter and fluid change 11,000 miles ago. No shavings inside pan.
Any help would be appreciated. Thanks - Ian
I have a 1998 Grand Caravan with a 3.0L and 3 Speed Transmission that just started slipping today (from a stop) and also not shifting from 1st to 2nd until RPM's are substantially higher than whats "normal" for it.
Any ideas on where to start? DIY Rebuild, Fluid & Filter Change, or Re-manufactured??
Here's the stats: 174,500 miles. Transmission was rebuilt at 58,000 (now has 116,500) on it. I performed flush, filter and fluid change 11,000 miles ago. No shavings inside pan.
Any help would be appreciated. Thanks - Ian
#2
Check TV cable and make adjustments if needed
Any Codes? With the 1st-2nd not shifting until HIGH RPMs, and slipping when in first, I have an inkling that it may be your shift solenoid.
The resident transmission expert around here though is Master Tech, I would PM him and tell him what is going on, I am sure he can help you (He floats around the van section alot)
Any Codes? With the 1st-2nd not shifting until HIGH RPMs, and slipping when in first, I have an inkling that it may be your shift solenoid.
The resident transmission expert around here though is Master Tech, I would PM him and tell him what is going on, I am sure he can help you (He floats around the van section alot)
#4
Check TV cable and make adjustments if needed
Any Codes? With the 1st-2nd not shifting until HIGH RPMs, and slipping when in first, I have an inkling that it may be your shift solenoid.
The resident transmission expert around here though is Master Tech, I would PM him and tell him what is going on, I am sure he can help you (He floats around the van section alot)
Any Codes? With the 1st-2nd not shifting until HIGH RPMs, and slipping when in first, I have an inkling that it may be your shift solenoid.
The resident transmission expert around here though is Master Tech, I would PM him and tell him what is going on, I am sure he can help you (He floats around the van section alot)
1. When in Drive, transmission doesn't downshift from 2nd to 1st
2. When in 1st, transmission is "late" to upshift to 2nd (21-22mph instead of 11-14mph)
Any other suggestions?? I bought the factory manual and the ATSG transmission manual that I'd like to make available to the forum. I'll host the files, feel free to repost the links or make it a sticky. Thanks!
1998 Caravan Factory Service Manual: https://docs.google.com/open?id=0Bwb...Q5NWM2OTRkY2U4
ATSG A404 thru A670 Transmission Manual: https://docs.google.com/open?id=0Bwb...Y4NTY2MmRkZWQ4
Last edited by Iwagner; 01-04-2012 at 04:42 PM.
#5
I would check the fluid, i know stupid thing, but that has totally screwed me before, if thats not it and your transmission is still slipping, i would have to say the transmission speed sensor or the 1st-2nd shift solenoid.
Like i said, master tech is the local dodge chrysler guy, i am sure he will be on soon and be able to give you a little more info, i am not 100% on your trans.
Like i said, master tech is the local dodge chrysler guy, i am sure he will be on soon and be able to give you a little more info, i am not 100% on your trans.
#7
Join Date: Apr 2007
Location: Near Sacramento,ca
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Got your message. I have been a little busy fixxing the new penastar motors. I send you a message and I believe yo have governor valves sticking. This was a common problem back in the day. On the 31TH transmission. The other common problem was the kick down lever would sized and could the transmission shift lever to move into neutral.
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#9