Recent ATF drain/refill, now car shifts extremely weird.
#1
Recent ATF drain/refill, now car shifts extremely weird.
Recently had a ATF drain/refill at my local Infiniti dealership @ Massapequa, NY on my automatic 2003 G35 sedan.
After a month of driving I seem to have extreme slipping issues with the transmission.
Whenever I would press hard on the gas the car would rev extremely high up to 5k and the whole car would shake and it would seem like something is grinding. Driving on Manual Mode would not produce this problem. Upon checking the ATF fluid, I noticed it's a dark brown color (upon searching, people said that drain/refills would make the fluid that color) and looking at the dipstick, I would notice that the fluid would reach the first curved mark when warmed up.
I recently bought an OEM tranny dipstick for my 2003 as they did not originally come with it. Could it be an ATF overfill that's causing the slipping issue or is my AT shot?
Would like to ask here first before bringing it back over there and have them charge me just for looking at it.
After a month of driving I seem to have extreme slipping issues with the transmission.
Whenever I would press hard on the gas the car would rev extremely high up to 5k and the whole car would shake and it would seem like something is grinding. Driving on Manual Mode would not produce this problem. Upon checking the ATF fluid, I noticed it's a dark brown color (upon searching, people said that drain/refills would make the fluid that color) and looking at the dipstick, I would notice that the fluid would reach the first curved mark when warmed up.
I recently bought an OEM tranny dipstick for my 2003 as they did not originally come with it. Could it be an ATF overfill that's causing the slipping issue or is my AT shot?
Would like to ask here first before bringing it back over there and have them charge me just for looking at it.
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#5
Upon doing more searches I have found out the issue is called
Transmission shudder.
The speed would near 40mph then you would feel the transmission shake the whole car and it would slip.
When searching I found several remedies which include
MAF cleaning (recently had a CEL light due to a dirty sensor, had it cleaned and did a idle air relearn, CEL lights off afterwards. could it mean damage even if CEL lights are off?)
Repeat drain/fills
The controversial atf flush
ECU update
does anyone else have any suggestions on what to check for?
Transmission shudder.
The speed would near 40mph then you would feel the transmission shake the whole car and it would slip.
When searching I found several remedies which include
MAF cleaning (recently had a CEL light due to a dirty sensor, had it cleaned and did a idle air relearn, CEL lights off afterwards. could it mean damage even if CEL lights are off?)
Repeat drain/fills
The controversial atf flush
ECU update
does anyone else have any suggestions on what to check for?
Last edited by interrupt; 08-02-2016 at 01:11 AM.
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