trans help
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trans help
I have a 1999 F350 dully with the 4R100 transmission, when the truck is first started and you try to drive the transmission won't shift. After the truck warms up it shifts fine. I had the transmission rebuilt and it still did it. The rebuild shop took it apart again and replaced the case thinking it may have a internal leak some where. Still no change. Is there some kind of sensor that could be bad or some wiring that might be causing this problem. I just can't dump any more money into this problem. The sad part is the truck only has 62,000 miles on it. Help!
Cross-Country
Joined: Feb 2011
Posts: 83
Likes: 6
From: Sacramento CA
Ok, I have know idea what a 4R100 tranny is as far as auto or stick, but I just had some problems with mine and thought I'd post the fix for it.
I have a 99 F350 V10 with Auto tranny. My battery went dead do to a water leak messing with the electrical. I have a post on here about it. Anyway, once I got a jump start and took off, it shifted really hard. Long story short, took it to a tranny guy, he hooked it up to his code reader and deleted the codes and walla, it shifts great again. He said that if I disconnected the battery for a few minutes, it should have done the same thing as his code reader did. So maybe you could give that a try?.
I'm no mechanic and I'm sure someone with better info will chime in, but thought I'd throw that out to ya!
I have a 99 F350 V10 with Auto tranny. My battery went dead do to a water leak messing with the electrical. I have a post on here about it. Anyway, once I got a jump start and took off, it shifted really hard. Long story short, took it to a tranny guy, he hooked it up to his code reader and deleted the codes and walla, it shifts great again. He said that if I disconnected the battery for a few minutes, it should have done the same thing as his code reader did. So maybe you could give that a try?.
I'm no mechanic and I'm sure someone with better info will chime in, but thought I'd throw that out to ya!
still plays with trucks
Joined: Mar 2004
Posts: 1,743
Likes: 3
From: Twin Falls Idaho
go to the 7.3 forum and ask for some tranny help. we've got a retired Ford tramsmission engineer over here. I can't remember his whole call tag. Mark something. he'll help you out.
Barney
Barney
FTE Leadership Emeritus
Joined: Sep 2000
Posts: 23,174
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From: Stephensville WI
Paul, did the rebuild shop replace anything besides the case? Seems like a real odd choice to fix a transmission issue to me.
Kim, you also have a 4R100 transmission. They were used on 1999-2004 gas engines and 1999-2003 Diesel engines.
Kim, you also have a 4R100 transmission. They were used on 1999-2004 gas engines and 1999-2003 Diesel engines.
Cargo Master
Joined: Jul 2009
Posts: 2,885
Likes: 24
From: Chino, California
I have a 1999 F350 dully with the 4R100 transmission, when the truck is first started and you try to drive the transmission won't shift. After the truck warms up it shifts fine. I had the transmission rebuilt and it still did it. The rebuild shop took it apart again and replaced the case thinking it may have a internal leak some where. Still no change. Is there some kind of sensor that could be bad or some wiring that might be causing this problem. I just can't dump any more money into this problem. The sad part is the truck only has 62,000 miles on it. Help!
Here is the link to the thread. Good luck.
https://www.ford-trucks.com/forums/1...uper-duty.html
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,696
Likes: 2,618
From: SE Florida
Yes there are. The ONLY way to know what's wrong is to get the codes read. Without the codes you're going to need to dump a ton of money on this hoping to randomly find the problem.
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still plays with trucks
Joined: Mar 2004
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From: Twin Falls Idaho
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On my truck you can put into drive and the truck will go but until it warms up it jumps back and forth from 2nd to low. It shifts up and down and up again and down. When the problem first started I took it to the transmission shop and they completely rebuilt it at a cost of $2000 When it didn't solve the problem they took it apart again and replaced the case, another $800. The funny thing is once it warms up it shifts fine. The truck is fuel injected so I'm pretty sure it is the 4R100 transmission.
