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post #1 of 6 (permalink) Old 02-28-2010, 09:36 AM Thread Starter
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c-6 problem

i have a c-6 in my van, i need to get the fluid warmed up before Drive will work.
i have to idle in D for awhile then it will grab. any ideas?
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post #2 of 6 (permalink) Old 04-12-2010, 04:20 PM
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when was the last time the fluid was changed?

Nick......................I'm back!!!
May you fly low and fast
rest in peace JL
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post #3 of 6 (permalink) Old 04-16-2010, 07:19 PM Thread Starter
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not that long ago there wasn't a magnet in the pan
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post #4 of 6 (permalink) Old 07-27-2011, 01:12 PM
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Kinda An Old Thread.....

But what happened?? I have a similar issue with the C6 in my F350. For a couple of days it wouldn't go into any forward gear and yesterday I was fiddling with it and it was going into gear. But I did notice that if I shifted it from Park to 1st gear it would go into gear. After it was warmed up all the way there didn't seem to be any problem. I'm wondering if a fluid change would help the problem. Really don't want to drop the trans....I got the truck really cheap. Once its in gear and driving there's no problems with drivability. Shifts nice and firm.
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post #5 of 6 (permalink) Old 07-27-2011, 08:50 PM
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The "no or slow engagement" into gear is often referred to as "morning sickness" in the transmission world. This is caused by hard or broken rubber sealing rings on the clutch apply pistons. Heat and age are the root cause.
The only fix is to rebuild the transmission with all new internal seals (yes, I have known people who don't replace those seal rings).
You can probably baby the transmission along for a while (I babied mine for two years until I got time to rebuild it) as you save for or plan the time to rebuild. If you have a daily driver the I would recommend getting a core and rebuild it and then spend a day swapping the transmissions.

After you get it rebuilt be sure to install a cooler in front of the radiator to lengthen the life of your new transmission.
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post #6 of 6 (permalink) Old 07-27-2011, 11:00 PM
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Thanks

For confirming that for me. Second time I've heard that seals can cause the problem. Sounds like a trans rebuild is in my future.
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