Transmission fluid overfill on Nag1 3.7L help
Hi Guys, been dealing with this problem for almost 2 months now. This year i had my transmission fluid drained and replace with 4QTS. which is perfectly fine, put about 3000 miles with no problems and then had my tranny cooler line replaced and i thought some fluid was lost at the shop, so i added 1/2QT. back in, drove locally and was fine then one day i had to do 100 mile trip to philly and it started acting weird, the rpms were sticking and it just wasn't normal. Anyhow, i bought a pump and siphoned the 1/2QT. back out, and the fluid was dark, assuming overfill causes extra heat and foaming i later took the car to the shop to do a drain and fill, 4QTS. were put back, but now i feel on coldstarts the RPM hits 1500 then slowly comes down. Now my question here is does low transmission fluid also cause the RPM to be high on coldstarts? after a few seconds it starts falling down to 1000 then settles around 7-800, the normal rpm for me before overfill would be 500rpm. I have noticed that it seem like the car is louder when it starts as well. Also, received my dipstick a couple days ago and for some reason i cannot get it to read when car is running, i also took a reading before i started the car and i believe it was at 60MM, drove the car to auto zone, took another reading and i got nothing. Does this mean i am under filled now? Keep in mind that the 2nd time i had the fluids drained, i have no idea how much actually came out, it could have been more or less and i also noticed a little slipping when pulling the car out of driveway this morning but is fine once its warmed up. Any thoughts or help would be appreciated.
07 WK 3.7L
Dipstick: Dorman 917-327