Change or not to change transmission fluid - F150online Forums



1997 - 2003 F-150

Change or not to change transmission fluid

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  #1  
Old 08-22-2011, 07:21 PM
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Change or not to change transmission fluid

I have 2 buddies that changed transmission fluid and had a flush performed only to have transmission crap out months later. I am aware that all good truck owners are supposed to do this but I am leary of letting my local oil change guys do this for fear of a dead truck. Advise?
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Old 08-22-2011, 07:26 PM
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Ive never done a flush but have changed the fluid in the pan and never a problem.
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Old 08-23-2011, 12:08 AM
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^ +1.
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Old 08-23-2011, 03:39 AM
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Depends on the mileage. Ford transmission like to be changed every 30k. If you havent had one done and the truck has over 100k dont do it..
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Old 08-23-2011, 11:41 AM
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I changed mine on my truck when i bought it it had 103k on it then and the pan had never been off so it was original fluid. I changed it again 10k miles later and again 10k miles after then this year I changed to Amsoil and I'm going to leave that in there for the next 5 years or so. So I've Changed it 4 times in the last 5 years. guys who get 200+ thousand miles out of there Transmissions maintain them. People who never replace the fluid have them fail.
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Old 08-23-2011, 01:02 PM
glc
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If you have a torque converter drain plug, drain it and drop the pan, replace the filter. If you don't have a plug (they were removed somewhere around the 2001/2002 time frame) you can take it to a shop for a fluid EXCHANGE (NOT a flush).
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  #7  
Old 08-23-2011, 01:17 PM
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Also I think glc was kinda trying to say this but a trans flush is what can be bad but a fluid exchange not so much.
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