tranny too hot, any ideas?

[sureshot8907]

i have a 7.3 with the 4r100 trans. it is running up to 190 around town, and got up to 220 today pulling a small maybe 3000lb trailer in about 60 degree weather. trans has less than 10k on a rebuild with new converter, and clutches. changed the filter and fluld tonight and is a little cooler, but not much.... about 180 around town now. is there anything i am over looking? oh and i also have a hd trans cooler in line with the factory cooler.

[rankroddin250]

have you replaced the inline trany filter? thats suposed to be the #1 killer in the 4r100.

[cowboyupamrka]

that seems strange to me. i am having the same problems but mine has 225,000 on the original tranny. i know it is because my tranny is bad, but if you have all that i am at a loss.

[red73psd]

180 is normal operating temp. how fast does it get to 180. do you have a chip. if so what level do you drive around on and how hard do you drive it. 220 is pretty hot. and is there anything blocking air flow to the tranny cooler down by the fog lights. i had this problem when i installed hid's and i mounted the ballast's next to the fog lights. barely restricting air flow and it caused my tranny to run really hot.

[sureshot8907]

no restrictions, after market cooler is dead center on the radiator. i do have a sct tuner on my truck, but i run it on a custom tune some, but mainly on the mileage tune. where is the in line filter located? i could not find it

[Raul@Stealth Automotive]

have you regeared your truck? if not your engine and trans is working harder to turn those big tires......

[Black Pwrstroke]

what is to hot for the tranny temp. Mine gets to 190 with my biger tires.

[Raul@Stealth Automotive]

210 is the highest you want to see on a 4r100

[sureshot8907]

i am only running 35's now. not much bigger than stock, but i am turning 20" wheels though. i have a 3.73 gear, so i may try a 4.10, but i cant justify spending $700 on gears unless i know that will fix it. , but with 35's i wouldnt think i would have to. my buddy is running factoy 3.73 on 38's and his always runs about 180 around town in the dead of summer

[rankroddin250]

follow the tranny lines fron the trans to the cooler. the inline filter should be some where in between.