02 F250SD 4R100 kickdown and ATF change questions

[crayoxide]

Question 1: When I fully depress the accelerator pedal the transmission will kickdown just fine, but a couple things happen simultaneously thereafter: a) the transmission will stay in the kickdown gear/mode even though the engine RPM has reached a point where it seems like it should be shifting out of it. The only way it will shift out is if I release pressure on the accelerator pedal and even then, there is a two to three second delay before it shifts. b) while the engine RPM is increasing, it feels like there is some transmission slippage taking place. Any thoughts? Are the two related? Not knowing the last time that the ATF has been changed since I recently bought the truck, I decided to change it. Following the instructions outlined in a Haynes manual, I could not find the TC drain plug. Thanks to this website and Mark Kovalsky's handy instructions, I discovered that there is not a TC drain plug to remove. Question 2: Having already dropped the pan and replaced the filter, and not paying attention to how much ATF came out ... how much ATF should I refill with as recommend in Kovalsky's step 3? Question 3: Is the 19 quarts total spec equal to the amount added in step 3 plus the amount add by the step 5/6 loop? Thanks.

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[thePUNISHER]

the late 4r100s do not have a drain plug on the converters.

can you explain your shift concern any better?

if i just dropped a pan and filter on a 4r100 id start with 6 qts fluid run it and check and add from there

[crayoxide]

Originally Posted by thePUNISHER

can you explain your shift concern any better?

Weeelll ... I thought that I did a pretty good job the first time around, but here is a rehash:

If I want to pass someone, or just accelerate with the gas peddle on the floor, the transmission will drop down into "passing gear" a-okay. The problem is that it stay's there. The engine RPM's will keep winding up until I take my foot out of it and even then it takes the truck a couple of seconds to figure out that is needs to shift up.

Meanwhile, as the engine is gaining in RPM's, sometimes it feels like the acceleration is soft. If it were a manual transmission, it would be like I was slipping the clutch ever so softly .. enough to tell a difference in the RPM's.

So I was wondering if those symptoms are indicative of bad fluid or a worn transmission or both. When I dropped the pan, the magnet in bottom did not have an excessive amount of sludge stuck to it, which I took as a good sign.

[Mark Kovalsky]

What RPM are you seeing? How high will it go? The engine has a rev limiter so you can't overspeed the engine.

As for the slipping, the torque converter unlocks on a kickdown and that allows slip. It's normal.