Transmision fluid
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Senior User
Joined: Oct 2006
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Transmision fluid
I need to change the transmission fluid in my truck it's a 99 4x4 4.6l with the 4r70w transmision. i was just wondering how many quarts does it take to fill it back up if i just drop the pan instead of flushing it?
Hotshot
Joined: Jul 2005
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the pan holds 5 quarts. change out the filter and clean the magnet when you are there. since your truck is a pre 2001, you have a plug in the bottom of th econverter to drain the other 8 quarts. under the converter housing there is a plastic round cover 3 inches in diameter. take it off, look at the bottom of the converter. rotate it around with a 18 inch screw driver as a pry bar. look for a 1/8 inch pipe plug size plug. (it is actually metric). take the plug out and drain the other 8 quarts. loctite the plug back in. takes about 13 quarts total to refill.
Postmaster
Joined: Nov 2006
Posts: 4,517
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From: SE Wyoming
IMO as long as it is MerconV it doesn't matter the brand, they all have to have the same ingredients for it to be a MerconV compliant fluid. Also buy more than 13qts just to be safe, I'd get at least 15.
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FTE Legend
Joined: Aug 2004
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From: North Central Rural Sask.
Ive heard from time to time though, that some of that mercon v compatible stuff isnt that great, anyone have experience with that? That is why I went with the ford stuff.
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Hotshot
Joined: Jul 2005
Posts: 11,931
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rotate the torque converter by using a big screw driver on the flywheel teeth. within 1 revolution you will see a hex plug less than 1/2 inch diameter. as mentioned, i think it is a 10 mm socket. you will get 8 quarts out. you can reuse the plug but it should be sealed back in. you can use loctite 242 or 262 or any similar. i would not use RTV or permatex.
FTE Legend
Joined: Aug 2004
Posts: 37,887
Likes: 20
From: North Central Rural Sask.
Just to add, I didnt use any sealer on mine and it hasnt leaked at all. I was carefull with it, and I did inspect it to see the condition of it, and I did check to see if it leaked before I went to far with it!
Hotshot
Joined: Jul 2005
Posts: 11,931
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thats right forest. i said ALWAYS use the MERCON V. i should say that statement is for the 4R70W transmission for the guy that started the thread. on older transmissions the oil is straight Mercon. You should always check the dipstick or operators manual for your specific truck.