Dropped my Transmission pan on 2008 ford f150 Yesterday

Contractor K

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I agree with others, that does not look right on the magnet.
My '02 F150/ 4R70E with 170,000 miles (at least 1 fluid flush) and my brother in laws '04 F150/ 4R75E with 150,000 miles (original fluid) were both just a sludgy covered magnet, nothing like yours.

And for giggles, when I put the pan back on my brother in laws, I threw the bobber from my truck in as well, so his has 2 in it now.
 

Contractor K

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That's a lot of metal & debris, The magnet should have a slimy black appearance to it....The metal will be so fine that it will be like black/grey colored paste.

You did the best thing you could do by changing the filter & adding fresh fluid, But don't be surprised if this unit goes down. Doing another pan drop in 10,000 miles will tell you if the unit is "Making Metal" or not......The magnet shouldn't have much of anything on it.
Do you have any tips on how to find a good transmission shop? or better still do you know any in Florida.,
 

Contractor K

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Seems little on the high side, but I've seen lots that look like that in rigs that tow for a living that didnt get frequent service.

I refer a D&F every 15K to a flush at 30 in a towing rig.
Thanks for your input,your experience is valued.
 
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Let's have more threads like this.
--Information.
--Expertise from the experienced.
--Friendly humor.
--Respectful back and forth.

I was just talking to an acquaintance at work about this exact kinda stuff.

My 2000 Silverado AT failed at 300k miles, in spite of frequent flushes.

1. Drop the pan.
2. Change the filter.
3. Use proper fluid.
 
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Let's have more threads like this.
--Information.
--Expertise from the experienced.
--Friendly humor.
--Respectful back and forth.

I was just talking to an acquaintance at work about this exact kinda stuff.

My 2000 Silverado AT failed at 300k miles, in spite of frequent flushes.

1. Drop the pan.
2. Change the filter.
3. Use proper fluid.


When I was a kid paying a few dollars to drop the pan meant a lot, once I really challenged a guy about the need to do it and his reply was memorable.

"You need to drop the pan to know just how much of your transmission is sitting in the pan."

Im looking for a bitog thread quoting Sayles and Mchperson that talks about the very high degree of metallic debris in most trans fluid, but am coming up short.
 
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That magnet looks OK to me. On my 1995 Escort I waited until around 165K miles before dropping the pan and the magnets looked at least that bad. That transmission lasted another 100K miles.
 
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The magnet....In my opinion....Tells a story, Gradual wear of the ferrous components lay down fine layers of sediment on the magnet. This will appear as the slimy black/grey compound I was referring to earlier.
When I see one Haired Over.....Tells me that the metal debris was laid down very quickly......It never fails that I find the component responsible for such a quick build-up of metal on units I tear down.

The first thing I think is.....Geartrian (Carrier/s, Sungear/s) or a Torrington Bearing went down & you have spinning components contacting each other when they shouldn't.

Could this be a case of the Geartrian being overstressed while towing coupled with sheared down ATF & the metal production will now trend down? Maybe....But I doubt it.

Am I a bit of a pessimist.....Absolutely, Building transmissions will inherently instill that in you. 4R70W(AOD) units are a lot like 4L60E units in the metal they generate on a normal basis.....Even in extreme conditions isn't much 'till something starts to fail.

Normal looking magnets.....
1. 6L80E with a little over 100K, Work truck that's pretty loaded down at all times & tows as well.
2. 5R55W with 160K, Trans was burnt down & needed a complete overhaul. The geartrian was in good shape.

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Contractor K

Thread starter
Joined
Jun 11, 2021
Messages
40
Let's have more threads like this.
--Information.
--Expertise from the experienced.
--Friendly humor.
--Respectful back and forth.

I was just talking to an acquaintance at work about this exact kinda stuff.

My 2000 Silverado AT failed at 300k miles, in spite of frequent flushes.

1. Drop the pan.
2. Change the filter.
3. Use proper fluid.
I agree, It is really informative . It is also greatly appreciated that people share knowledge . You couldn't buy this information with the view from different perspectives.
 

Contractor K

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Joined
Jun 11, 2021
Messages
40
Anybody got recommendation for a good transmission shop in the Orlando area? I am looking to get prepared for the possible demise of this transmission. I cant afford to have the truck down for anything over a couple of working days. I would be prepared to travel around a 100 mile radius.
 
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