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Old 04-17-2011, 12:49 AM   #1
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Default Transmission Fluid Change?

We all know the tranny fluid is 'spose to last for the truck's lifetime. But for any nonbeliever's (like me), I ask the question: has anyone changed out their fluid? If so, where did you do it (or have it done), what extras were needed (new gasket?), and what fluid, how much $ ???

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Old 04-17-2011, 11:16 AM   #2
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Suppose to be good to 100,000 miles. Its in the maintenance guide if you read it
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Old 04-17-2011, 12:01 PM   #3
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I flushed and changed the tranny on a 1995 chevy s10 blazer once at 120K miles, the tranny promptly went out and cost me 2000$ to replace. Tranny guy said that changing the fluid removes the friction material from the oil and makes it to slippery and the old worn clutches then dont work right. Now whether he was talking about just that particular tranny or in general I dont recall as it was 6 years ago, but Ive had a ton of high mileage vehicles in my day, mostly fords, and this is the first one ive ever had a problem with.
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Old 04-17-2011, 12:48 PM   #4
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Start at 40 k and repeat every 40k. Any longer and the fluid starts to break down. If left longer than 100k I would leave it.
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Old 04-17-2011, 03:23 PM   #5
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Quote:
Originally Posted by Mgizler
Start at 40 k and repeat every 40k. Any longer and the fluid starts to break down. If left longer than 100k I would leave it.
That's for older trans fluid the new fluids(mecron lv and sp) it's not needed that often.
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Old 04-17-2011, 09:00 PM   #6
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But if you have money to burn, why not for peace of mind?
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Old 04-17-2011, 11:54 PM   #7
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Look here it will tell when ford says to change what and when

http://www.motorcraftservice.com/pub.../10frdmg2e.pdf
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Old 04-18-2011, 02:31 AM   #8
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In case you wanted to know how to do it

http://i1107.photobucket.com/albums/...ansmission.png

Last edited by caperj; 04-18-2011 at 02:35 AM.
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Old 04-18-2011, 05:51 AM   #9
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ive been wanting to do my tranny fluid & both front & read diffs im at about 50,000 miles
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Old 04-18-2011, 06:16 AM   #10
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Quote:
Originally Posted by SultanGris View Post
I flushed and changed the tranny on a 1995 chevy s10 blazer once at 120K miles, the tranny promptly went out and cost me 2000$ to replace. Tranny guy said that changing the fluid removes the friction material from the oil and makes it to slippery and the old worn clutches then dont work right. Now whether he was talking about just that particular tranny or in general I dont recall as it was 6 years ago, but Ive had a ton of high mileage vehicles in my day, mostly fords, and this is the first one ive ever had a problem with.
Please don't take this the wrong way; I am only giving my opinion. The reason, I believe, your transmission went out is because you flushed it with 120k+ miles. I used to be a Honda mechanic and we would highly discourage transmissions flushes IF the vehicle had over 100k miles AND a transmission flush had never been done. What happens is, all the "gunk" and metal shavings that have settled throughout the transmission will "break loose" and flow throughout the transmission until it gets stuck again i.e. in gears, lines, etc. After a refill of fluid and a couple hundred miles down the road, catastrophic failure rates are higher than those that go without the flush. Now this, of course, is all subjective and possibly a little bit of speculation on my part because I have no analytical or statistical facts to back my argument. I can only go by my experience at Honda and that, in itself, is no where near the amount of data you would need to make a statistical "fact". Just my 0.02 cents...
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Old 04-18-2011, 06:16 AM
 
 
 
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