1991 740 Turbo, auto with 190K. Car is not my daily and has been sitting with occasional starts and drives around the block.
I've noticed this audible "whirring" sound coming from under the car around the transmission tunnel when driving.
It seems to start around 10-15 mph and gets louder as speed increases. If I shift the car into neutral as I'm driving, the sound is still there. The automatic transmission seems to **** fine and as it should. Overdrive button/relay work fine.
The best I can describe the sound as is a whirring that increases in volume as I go faster and decreases as I slow. When the car is idling at a stand still the sound is gone.
Can't remember the last time I changed the tranny fluid and like I said, this car is not a daily anymore. This whirring problem happens when the car is hot or cold. Spring or winter. Light research seems to bring me to a clogged or dirty transmission filter? Any ideas? Thanks!
I recorded a video of the sound;
https://drive.google.com/file/d/1-hPI83Jr3t6bdwHw-0aSmK0-KqhUrMmh/view?usp=sharing
I've noticed this audible "whirring" sound coming from under the car around the transmission tunnel when driving.
It seems to start around 10-15 mph and gets louder as speed increases. If I shift the car into neutral as I'm driving, the sound is still there. The automatic transmission seems to **** fine and as it should. Overdrive button/relay work fine.
The best I can describe the sound as is a whirring that increases in volume as I go faster and decreases as I slow. When the car is idling at a stand still the sound is gone.
Can't remember the last time I changed the tranny fluid and like I said, this car is not a daily anymore. This whirring problem happens when the car is hot or cold. Spring or winter. Light research seems to bring me to a clogged or dirty transmission filter? Any ideas? Thanks!
I recorded a video of the sound;
https://drive.google.com/file/d/1-hPI83Jr3t6bdwHw-0aSmK0-KqhUrMmh/view?usp=sharing