2nd gear slip 4r100 - Ford Powerstroke Diesel Forum
 
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post #1 of 7 Old 12-10-2010, 08:48 PM Thread Starter
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2nd gear slip 4r100

this issue is with my friends truck. we were riding around and playing around a little and he got on it hard like 3/4 throttle and it pulled for awhile in ysecond then we felt a jolt and the engine went right to governor. thought right away we snapped the input shaft but later found out that every gear works normal other than second. the trans also makes a whinning sound now while slowing down. what could have let loose in there to make second slip so bad a broken clutch band?

my dads truck:
1999
2002 motor
stock straight pipe
lift kit, big bumpers,
foil delete,
EBPV exhaust brake

Dp tuned
(lope idle,
80 econo,
80 tow,
120,
140 agressive)
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post #2 of 7 Old 12-11-2010, 07:32 AM
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The band is only applied in manual 2. What year is the truck?
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post #3 of 7 Old 12-11-2010, 12:09 PM Thread Starter
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it is a 2000.

my dads truck:
1999
2002 motor
stock straight pipe
lift kit, big bumpers,
foil delete,
EBPV exhaust brake

Dp tuned
(lope idle,
80 econo,
80 tow,
120,
140 agressive)
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post #4 of 7 Old 12-11-2010, 03:46 PM
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This tranny is weard...

it only has a band for overdrive; the rest are clutches. Mine lost all forward gears...still checking it out!!!
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post #5 of 7 Old 12-11-2010, 04:13 PM Thread Starter
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so basicly it needs a full rebuild?

my dads truck:
1999
2002 motor
stock straight pipe
lift kit, big bumpers,
foil delete,
EBPV exhaust brake

Dp tuned
(lope idle,
80 econo,
80 tow,
120,
140 agressive)
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post #6 of 7 Old 12-12-2010, 10:43 AM
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The band is not for OD. It only applies in manual 2. The intermidiate clutch applies and the intermidiate sprag locks on upshift to second. You very well could have a broken sprag on the intermidiate/direct drum.
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post #7 of 7 Old 12-19-2010, 04:34 AM
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Fordnuts is right on the band. It's only for 2nd gear holdback. I left one out once, customer had already picked the truck up when I found it on the table. He didn't live on the mountain so... he never called back with a complaint.
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