Trans Filter
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Posting Guru
Joined: Nov 2008
Posts: 1,229
Likes: 2
From: Oregon
Trans Filter
2002 4R100 Reaching 59,000 miles.
Fluid has never been suggested to flush.
Now, Ford says it's time.
Ford wants $140 for the flush, plus $200 if they clean the filter.
The tech says he wouldn't clean the filter, if it was his truck.
Is cold, or hot flush important?
Fluid has never been suggested to flush.
Now, Ford says it's time.
Ford wants $140 for the flush, plus $200 if they clean the filter.
The tech says he wouldn't clean the filter, if it was his truck.
Is cold, or hot flush important?
Lead Driver
Joined: Nov 2008
Posts: 8,447
Likes: 70
From: South Jersey
The 4r100 filter has no filetration value at all, it there to help stop big chunks from getting sucked up. Now i change mine ever 30k PLUS i do a complete filter changeout. But my front pump bushings went out at 130k for no reason so who knows, but id drop let the delser do a hot flush and be done with it. 140 bucks is nothing when you figure in buying the oil, laying on your back with fluid dripping in your eyes and all over you.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,696
Likes: 2,617
From: SE Florida
A hot flush is not required for your transmission.
That's an exaggeration. It does filter, but not the very small particles that you can't even see.
Tuned
Joined: Apr 2012
Posts: 253
Likes: 0
From: Winter, WI
I agree with the tech about the filter. You really can't clean it, you replace it. But unless the trans has failed it doesn't need to be replaced.
A hot flush is not required for your transmission.
That's an exaggeration. It does filter, but not the very small particles that you can't even see.
A hot flush is not required for your transmission.
That's an exaggeration. It does filter, but not the very small particles that you can't even see.
Laughing Gas
Joined: Oct 2017
Posts: 922
Likes: 7
I bought a ‘03 F-250 with a 4r100 with 118,000 miles on it and I don’t know the maintenance history of the transmission so I bought a Wix filter and was going to drop the pan and change the filter and what fluid I can. Are you saying not to bother with the filter? To just drain what fluid I can through the drain plug and call it good for another 30,000 miles then? Huh....
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Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,696
Likes: 2,617
From: SE Florida
I bought a ‘03 F-250 with a 4r100 with 118,000 miles on it and I don’t know the maintenance history of the transmission so I bought a Wix filter and was going to drop the pan and change the filter and what fluid I can. Are you saying not to bother with the filter? To just drain what fluid I can through the drain plug and call it good for another 30,000 miles then? Huh....
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