4R100 problems - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 7 (permalink) Old 06-04-2014, 05:30 PM Thread Starter
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4R100 problems

I know that there are a ton of threads on this transmission and I have read through a bunch of them to see if any related to my problem but, could not find any.

Anyway, my transmission will not go into drive when it sits and idles for any length of time. I have to rev it up to get it to drop into gear and then it shifts fine as long as I leave it in drive. If I stop and put into park and let it idle (for even a minute) it will not go into gear. I have to sit there and rev the crap out of it to get into gear. BTW I get alot of strange looks when I do that also.

Reverse is fine. The fluid level is fine. The fluid also does not smell burned either.

I want to change the transmission fluid and filter but not sure if I will be wasting that money or not if it is a bigger issue.

2000 F-350 4x4 with a Banks 6 gun tuner and a 4" lift kit. 174K mileage.
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post #2 of 7 (permalink) Old 06-04-2014, 06:48 PM
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Re: 4R100 problems

Is your overdrive light blinking on the end of your shift lever? If so, you will have some codes that should help diagnos the problem.

2000 Excursion 4x4 7.3
2000 F350 4x4 CC SWB
1988 Suzuki Samurai 4x4 (can I squeeze a 7.3 under the hood?)
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post #3 of 7 (permalink) Old 06-04-2014, 08:25 PM Thread Starter
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Re: 4R100 problems

Sorry, I should have said that also but, no lights blinking either.
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post #4 of 7 (permalink) Old 06-04-2014, 10:27 PM
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Re: 4R100 problems

Changing the fluid would be a waste of money. New fluid won't make a difference. Your forward clutch is toast.

Mark
Former Ford Automatic Transmission Engineer

“The good thing about science is that it's true whether or not you believe in it.” ― Neil deGrasse Tyson
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post #5 of 7 (permalink) Old 06-04-2014, 11:18 PM Thread Starter
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Re: 4R100 problems

Great! So I guess a rebuild is in order?
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post #6 of 7 (permalink) Old 06-05-2014, 11:31 AM
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Re: 4R100 problems

Yes it is.

Mark
Former Ford Automatic Transmission Engineer

“The good thing about science is that it's true whether or not you believe in it.” ― Neil deGrasse Tyson
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post #7 of 7 (permalink) Old 06-05-2014, 01:33 PM Thread Starter
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Re: 4R100 problems

Bummer. Thanks for your help Mark.
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