2007 Caravan transmission shudder
#1
2007 Caravan transmission shudder
My Caravan (85,000 miles/18mpg) transmissions shudders under light acceleration between 30-40 mph. If I accelerate harder, the shudder stops.
I've had the fluid flushed with ATF+4 because of the shudder, and is full. It was serviced at regular intervals.
My transmission shop has looked at it twice, and cannot identify a problem using their instruments and experience. They can only suggest a transmission oil change (flush done elsewhere) or some additives. It is pointless to do the first, and I'm suspicious about the second.
Is this just an awful design flaw, or am I heading towards a failure/rebuild?
I've had the fluid flushed with ATF+4 because of the shudder, and is full. It was serviced at regular intervals.
My transmission shop has looked at it twice, and cannot identify a problem using their instruments and experience. They can only suggest a transmission oil change (flush done elsewhere) or some additives. It is pointless to do the first, and I'm suspicious about the second.
Is this just an awful design flaw, or am I heading towards a failure/rebuild?
#2
Do you have the 41te 4 speed transmission? PCM may need a reflash or relearn. Were the CVI values in spec? If yes then I would suspect something related to the torque converter.
Here's one related TSB: http://ww2.justanswer.com/uploads/do...cc_shudder.pdf
Here's one related TSB: http://ww2.justanswer.com/uploads/do...cc_shudder.pdf
Last edited by Cougar41; 09-24-2013 at 05:57 PM.
#3
#5
I thought that it was the torque converter, but the transmission shop says that it isn't as the shudder occurs at a lower speed before the torque converter goes into lockup.
I'm not sure what it meant by steel grade, but it does feel like I'm driving over a rippled road some of the time between 30-40 mph. When it reaches "lock up" speed I don't experience any shudder issues.
Is the cost of a new/rebuilt front pump/torque converter actually a rebuilt transmission? I suspect it is, as the labor costs of getting to it and installing the parts are probably the same, as just swapping it for a rebuilt one?
Thanks for your help.
I'm not sure what it meant by steel grade, but it does feel like I'm driving over a rippled road some of the time between 30-40 mph. When it reaches "lock up" speed I don't experience any shudder issues.
Is the cost of a new/rebuilt front pump/torque converter actually a rebuilt transmission? I suspect it is, as the labor costs of getting to it and installing the parts are probably the same, as just swapping it for a rebuilt one?
Thanks for your help.
#7
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