Dude just change the dam fluid. Not changing it will cause a problem. Drop the pan replace the filter and make sure you get the right filter IE 4x4 and 2x4 are different depths one has a longer pick up tube in the filter and this will kill your tranny if you get the wrong one for sure. Pans are deeper on the 4x4 as well. Don’t neglect the TQ. There is a rubber plug at the dead center bottom of the bell housing. Pull this black rubber plug out have some one on top crank not start the engine until you see the TQ drain plug. The 4x4 4r100 pan holds 7Qt's of ATF and the 10in 4x4 TQ holds another 7qts. "You will see slipping by not changing it FOR SURE" it’s a light hydraulic fluid it needs to be changed on a regularly basis NO BS!!! the whole thing said and done will take the average guy 30 mts max don’t waste time or money taking it to a dealer or a oil lube place as this is what they would do or maybe they would just flush the system by hooking hoses up to the transcooler and replacing what the take out. Screws that do it your self and know it was done right "peace of mind"
If you’re having sloppy shift replace the solenoid shift pack with out delay!!!
When filling it back up with Mercon ATF fill the pan up before starting it then add to it as she’s idling to fill the TQ. Before taking her on the road On level ground shift from park to 1 then back to park then from park to 2 then back to park then to Drive then back to park then to reverse. Then check your fluid again. This is the most accurate way of checking the real and not residual fluid level and is the exact same thing a transmission shop would do!! Trans must be at full operating temp to get a real fluid level check. Sense its hydraulic oil it expands and contracts with heat and cold.
Almost left this out when pulling the filter out MAKE SURE to get the rubber oring out that gos on the steam of the filter. If your transmission filter hasnt been changed in a long while it may be hard and you will need to gentley pull it out with a J hook pick and not a sharp *** screw driver. DO NOT SCARE THE INSIDE OF THE PICK UP BORE WITH A SCREWDRIVER !!!!!!
Last edited by nonwoven29; 02-04-2010 at 08:59 AM.