2008 T&C transmission/shifting issue
#1
10-06-2016, 01:50 AM
2008 T&C transmission/shifting issue
Hey guys,
Our '08 T&C has an issue we'ld like to put out for your opinions please. When driving along, the vehicle will kick down into, probably, first gear and will not upshift again until we pull over, put the vehicle in park, turn off the engine then restart it. Shifting into neutral while moving and then turning off and restarting the engine then shifting back into drive does not make the problem go away either. We have to pull over, put it in park, and turn it off as I stated. The service engine light has come on a few times when this happens but later will go out. The shop put a code reader on and found nothing significant or related. This problem happens intermittently but is increasing in frequency. Also, normally, we can manually shift the transmission with the shift lever (indicated by the dash light indicators of gears 1 through 6 as we shift through the gears) but when this problem occurs, the indicator cannot be manually shifted out of that gear and the "D" remains in the indicator area. The service engine light is on currently (even with turning the engine on and off it's remaining) and was going to attempt to have the vehicle read tomorrow for codes while the light is on if that may help. Any thoughts as to what this is would be greatly appreciated as it leaves us in a hazardous situation when it occurs. Thank you.
Our '08 T&C has an issue we'ld like to put out for your opinions please. When driving along, the vehicle will kick down into, probably, first gear and will not upshift again until we pull over, put the vehicle in park, turn off the engine then restart it. Shifting into neutral while moving and then turning off and restarting the engine then shifting back into drive does not make the problem go away either. We have to pull over, put it in park, and turn it off as I stated. The service engine light has come on a few times when this happens but later will go out. The shop put a code reader on and found nothing significant or related. This problem happens intermittently but is increasing in frequency. Also, normally, we can manually shift the transmission with the shift lever (indicated by the dash light indicators of gears 1 through 6 as we shift through the gears) but when this problem occurs, the indicator cannot be manually shifted out of that gear and the "D" remains in the indicator area. The service engine light is on currently (even with turning the engine on and off it's remaining) and was going to attempt to have the vehicle read tomorrow for codes while the light is on if that may help. Any thoughts as to what this is would be greatly appreciated as it leaves us in a hazardous situation when it occurs. Thank you.
#2
10-06-2016, 07:37 AM
That sounds odd, it makes me think it's a problem with the shifter electronics rather than the autobox itself. The electronics are getting a fault and dropping into a fail-safe like mode, switching off, etc, resets and it sets off again, so the really obvious stuff would be to check for good battery connections, no corrosion to the BCM, etc.
When you get the code read, make sure they have the right reader, a generic reader won't be good enough, it has to be able to talk to the Chrysler autobox and pull codes from it. If they can't tell you the autobox (model, etc) info when plugging in then they've not got the right reader.
When you get the code read, make sure they have the right reader, a generic reader won't be good enough, it has to be able to talk to the Chrysler autobox and pull codes from it. If they can't tell you the autobox (model, etc) info when plugging in then they've not got the right reader.
#3
10-06-2016, 07:59 AM
Hey guys,
Our '08 T&C has an issue we'ld like to put out for your opinions please. When driving along, the vehicle will kick down into, probably, first gear and will not upshift again until we pull over, put the vehicle in park, turn off the engine then restart it. Shifting into neutral while moving and then turning off and restarting the engine then shifting back into drive does not make the problem go away either. We have to pull over, put it in park, and turn it off as I stated. The service engine light has come on a few times when this happens but later will go out. The shop put a code reader on and found nothing significant or related. This problem happens intermittently but is increasing in frequency. Also, normally, we can manually shift the transmission with the shift lever (indicated by the dash light indicators of gears 1 through 6 as we shift through the gears) but when this problem occurs, the indicator cannot be manually shifted out of that gear and the "D" remains in the indicator area. The service engine light is on currently (even with turning the engine on and off it's remaining) and was going to attempt to have the vehicle read tomorrow for codes while the light is on if that may help. Any thoughts as to what this is would be greatly appreciated as it leaves us in a hazardous situation when it occurs. Thank you.
Our '08 T&C has an issue we'ld like to put out for your opinions please. When driving along, the vehicle will kick down into, probably, first gear and will not upshift again until we pull over, put the vehicle in park, turn off the engine then restart it. Shifting into neutral while moving and then turning off and restarting the engine then shifting back into drive does not make the problem go away either. We have to pull over, put it in park, and turn it off as I stated. The service engine light has come on a few times when this happens but later will go out. The shop put a code reader on and found nothing significant or related. This problem happens intermittently but is increasing in frequency. Also, normally, we can manually shift the transmission with the shift lever (indicated by the dash light indicators of gears 1 through 6 as we shift through the gears) but when this problem occurs, the indicator cannot be manually shifted out of that gear and the "D" remains in the indicator area. The service engine light is on currently (even with turning the engine on and off it's remaining) and was going to attempt to have the vehicle read tomorrow for codes while the light is on if that may help. Any thoughts as to what this is would be greatly appreciated as it leaves us in a hazardous situation when it occurs. Thank you.
If you decide to take your vehicle to a Chrysler dealership I would be happy to follow up with them for you. Just PM our page with your VIN and contact information and let me know!
Andrea
Chrysler Social Care Specialist
#5
10-07-2016, 12:21 AM
So the service engine light came on today and the dealer was able to get us in and check for a code. And there was one which read P0760 pointing to the PCM and had a description of OD Solenoid Control Circuit. Does anyone have any thoughts on what it could be then? The dealer said further diagnosis is needed but they could not tell us how long it could take. Thanks.
#6
10-07-2016, 06:52 AM
Aha, yes that helps, that P code means "BAD Overdrive Shift Solenoid", and there is a good web-page that give info on diagnosing further:
http://easyautodiagnostics.com/chrys...-p0760-tests-1
give those a go as there is a lot of information and tests you can do yourself there to help.
Oh and a key bit on that page that I would take note of:
"Can a BAD Solenoid Pack cause the Transaxle to go BAD?... the answer is YES if you don't take care of the problem as soon as possible and/or continue driving it for extended amounts of time/distance in LIMP IN mode."
http://easyautodiagnostics.com/chrys...-p0760-tests-1
give those a go as there is a lot of information and tests you can do yourself there to help.
Oh and a key bit on that page that I would take note of:
"Can a BAD Solenoid Pack cause the Transaxle to go BAD?... the answer is YES if you don't take care of the problem as soon as possible and/or continue driving it for extended amounts of time/distance in LIMP IN mode."
Last edited by andyb2000; 10-07-2016 at 06:55 AM.
#7
10-08-2016, 06:17 PM
Had a new finding if it may help. I had the engine running and the hood open today and heard what sounded like someone knocking on a metal cover. It was coming from the transmission area and what I heard would be one knock every 10 seconds. I could hear it while in park, in drive, but not in reverse (had the e-brake on). So I grabbed the wiring connector to the transmission just to jiggle it, to see if the service engine light issue would change if it was possibly just a bad connection thing, and I felt the knock/clunk right there, it seemed, transmitting strongly into my hand. Any thoughts if this is a normal sound/action to hear from the transmission or does it sound familiar to anyone as an indicator of what could be going on with this problem? Thanks.
#8
10-12-2016, 09:33 PM
Trans not shifting
I have a similar if not identical problem. I have an 08 Pacifica, 94K miles with the 4.0L and 6 speed trans. Lately it will seem like it's stuck in 2'nd gear and if I switch down to autostick it will not go into autostick and remains in drive. If I stop the car, turn the car off and back on, it will shift normally and it will go into autostick until it starts acting up again.. This has happened a bunch of times over the past month, and seems to be happening more and more lately. Today it happened to my wife while driving and when she got home there was a MIL lamp on. I checked the code which was P083B which indicates a trans pressure switch "G" circuit range/performance. Not sure what this means but I will do some research on it tomorrow and contact a dealer friend who may be able to explain further what this means. I did ask him about the issue before and he said a possible culprit could be the trans shift solenoid which is normally mounted to the radiator fan shroud. He said that it often comes off the shroud and will dangle upside down which allows water to get on the contacts corroding them. Indeed mine was hanging by the wires. I took it off and cleaned the contacts. The problem seemed to stop for some time but started again today, but today is the first time it tripped a MIL light.. My trans fluid level is at max level, no leaks, and does not appear to be burned. I will be changing the fluid and filter in the next few days. Don't know if this will fix the issue but if anyone has any thoughts I'd love to hear them. Thanks!
Last edited by grbullets; 10-12-2016 at 09:47 PM.
#9
11-15-2016, 10:04 AM
Well lots to update. So the P0760 code that was found by our Chrysler dealer turned out to be, according to the diagnostic test tree that they followed, either a PCM or OD solenoid Control issue. As such, the dealer replaced the tranny valve body and sent us on our way! Things were great! For about a week. 
. And another code was thrown with the reappearance of the service engine light and the same driveablity issues. So back we went complaining of the same problem. The dealer upped the diagnosis to a long time tech who, as we were told, found the code to be a P084B "Pressure Switch Rationality". He then went through about 12-13 pages of diagnostic trees to arrive at....the PCM as the definite culprit. They worked with us to make things right in the end, but the total repair was around $1300 for both repairs. If we hadn't done so many repairs to the vehicle just previously (brakes all around, new radiator, coolant, oil change, a few pricey odds and ends), I know my wife would've pushed this van over the cliff as she was at her wits end (good that she didn't 'cause the vehicle still has some value to it!). But the good people at Chrysler corp and our dealer and parts guys really stepped up to show us what good customer care is all about throughout this ordeal and I can't say enough about all of them in that regard. #1! I think we'll be eating frozen dinners for awhile to recoup the cost of keeping us rolling, though! Anyway, hope that gives some of you some indications for similar issues. And hope this problem is finally behind us! On to the next adventure.
. And another code was thrown with the reappearance of the service engine light and the same driveablity issues. So back we went complaining of the same problem. The dealer upped the diagnosis to a long time tech who, as we were told, found the code to be a P084B "Pressure Switch Rationality". He then went through about 12-13 pages of diagnostic trees to arrive at....the PCM as the definite culprit. They worked with us to make things right in the end, but the total repair was around $1300 for both repairs. If we hadn't done so many repairs to the vehicle just previously (brakes all around, new radiator, coolant, oil change, a few pricey odds and ends), I know my wife would've pushed this van over the cliff as she was at her wits end (good that she didn't 'cause the vehicle still has some value to it!). But the good people at Chrysler corp and our dealer and parts guys really stepped up to show us what good customer care is all about throughout this ordeal and I can't say enough about all of them in that regard. #1! I think we'll be eating frozen dinners for awhile to recoup the cost of keeping us rolling, though! Anyway, hope that gives some of you some indications for similar issues. And hope this problem is finally behind us! On to the next adventure.
#10
11-16-2016, 04:58 PM
Well lots to update. So the P0760 code that was found by our Chrysler dealer turned out to be, according to the diagnostic test tree that they followed, either a PCM or OD solenoid Control issue. As such, the dealer replaced the tranny valve body and sent us on our way! Things were great! For about a week. . And another code was thrown with the reappearance of the service engine light and the same driveablity issues. So back we went complaining of the same problem. The dealer upped the diagnosis to a long time tech who, as we were told, found the code to be a P084B "Pressure Switch Rationality". He then went through about 12-13 pages of diagnostic trees to arrive at....the PCM as the definite culprit. They worked with us to make things right in the end, but the total repair was around $1300 for both repairs. If we hadn't done so many repairs to the vehicle just previously (brakes all around, new radiator, coolant, oil change, a few pricey odds and ends), I know my wife would've pushed this van over the cliff as she was at her wits end (good that she didn't 'cause the vehicle still has some value to it!). But the good people at Chrysler corp and our dealer and parts guys really stepped up to show us what good customer care is all about throughout this ordeal and I can't say enough about all of them in that regard. #1! I think we'll be eating frozen dinners for awhile to recoup the cost of keeping us rolling, though! Anyway, hope that gives some of you some indications for similar issues. And hope this problem is finally behind us! On to the next adventure.
. And another code was thrown with the reappearance of the service engine light and the same driveablity issues. So back we went complaining of the same problem. The dealer upped the diagnosis to a long time tech who, as we were told, found the code to be a P084B "Pressure Switch Rationality". He then went through about 12-13 pages of diagnostic trees to arrive at....the PCM as the definite culprit. They worked with us to make things right in the end, but the total repair was around $1300 for both repairs. If we hadn't done so many repairs to the vehicle just previously (brakes all around, new radiator, coolant, oil change, a few pricey odds and ends), I know my wife would've pushed this van over the cliff as she was at her wits end (good that she didn't 'cause the vehicle still has some value to it!). But the good people at Chrysler corp and our dealer and parts guys really stepped up to show us what good customer care is all about throughout this ordeal and I can't say enough about all of them in that regard. #1! I think we'll be eating frozen dinners for awhile to recoup the cost of keeping us rolling, though! Anyway, hope that gives some of you some indications for similar issues. And hope this problem is finally behind us! On to the next adventure.
