I'm getting ready to do a fluid change on my 1986 F-250 Auto C6. I see no drain plug, so I am guessing the whole pan comes off, is this correct? Also, how much fluid does it take?

 

Pan comes off..........

4x4 13.5 qts US

4x2 11.75 qts US

 

Thank you much sir.

 

with out flushing the system i believe it will take less fluid than that

 

Much less if just the pan is drained....... I have no info on fluid change proceedure for the C6. If anyone has it please post it...

 

ubahdood i pulled the pan on my c6 to chang the valve body out
and if i rember right it took 3 to 3.5 qts to refill it
ken

 

Don't forget the torque converter drain. Pull the converter cover off and spin the engine CLOCKWISE (always clockwise on a MI diesel to avoid possible damage to the pump) by hand with a prybar or big screwdriver on the ring gear teeth. You'll see a small pipe plug and spin it till it's at the bottom to fully drain the converter.

I installed a drain pulg in my pan. You can buy them to bolt in or weld in (most auto parts stores). It's a convenience to be able to drain the fluid before pulling the pan and replacing the filter. Don't let the convenience make you lazy... always replace the filter.

 

13 QUARTS!!! Be sure your catch pan is big enough!!

 

13 Quarts and the filter is really a metal encased screen to keep the big chunks out. Just give it a good wash. C6 one of the best even against the diesel put a big cooler on her they were known to generate a little extra heat under load. My C6 is great put huge cooler on it stopped routing the fluid through the radiator and the temp rarely gets above 130.

 

Thanks for all the info guys, really appreciate it. I think i'll wait till my boss gets back from his vacation to do this in the shop.

 

13 qts?!?! I never got anything like that out of my c6, maybe cause I didn't take the torque converter off and drain it?

 

Take the access cover off and spin the engine clockwise the drain plug is right next to one of the 4 mounting studs. It's a 3/8 plug might be hard to see on the older flywheels and it faces forward on the face of the torque where as the E4OD plug is on the circumference. The 4x4 C6 and E4OD had deeper pans which gave you about 2 extra quarts. When you take the pan off this is a great time to add a temperature gauge which then can be a drain plug when you need it next time.