Quote:
Originally Posted by Jack Watts Jim, did you think that pan filter was worth changing? Was there much dirt in the pan/filter? I'm unsure whether to mess with it at the next change or not, since the HP filter should catch most stuff before it gets to the pan. How much sludge/dirt was in the pan? |
The pan had a light coating of black material like pencil lead (normal). The magnet was bristling with it. I'm not a trans expert but I think the fluid is cleaned by the pan filter first. The HP filter is probably even finer.
The factory recommends
not changing the pan filter or to flush the cooler...."the flush may dislodge debris then allow it into the trans afterwards". They actually expect you to replace the cooler

.
Well....the fluid in the cooler was very black, 'pencil lead'. I fell pray to their paranoia and added a
Magnefine filter in the return line. Removed it after ~500 miles.....clean as a whistle.
The car had 100K when I bought it....all fluids & filters were changed. I was pleasantly surprised to find the trans had been serviced at least once because the drain plug had been replaced. Hex key vs. the original torx head that usually strips out.