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Old Feb 21, 2006 | 02:00 PM
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SShank42's Avatar
SShank42
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From: SOUTHEAST OHIO
Torque converter

1987 Bronco II 2.9l with automatic tranny (has overdrive). The torque converter will not lock up and has a hard time downshifting. The rpm's has to be extremely low for it to downshift from about all gears. Thank for suggestions.
 
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Old Feb 21, 2006 | 10:25 PM
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thesprocket26
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From: South Central Boise
Well if you say it's the torque converter.......................

Is your fluid up to level?
 
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Old Feb 22, 2006 | 08:29 AM
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Yes, first thing I checked.
 
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Old Feb 22, 2006 | 09:05 AM
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Originally Posted by SShank42
1987 Bronco II 2.9l with automatic tranny (has overdrive). The torque converter will not lock up and has a hard time downshifting. The rpm's has to be extremely low for it to downshift from about all gears. Thank for suggestions.
I would check valve body function before I replaced converter because it control converter lockup and shift points and ou have a shifting problem too. Even if converter lockup clutch was bad it would have no effect on normal shift points otherwise. You need to change your point of focus here as trannies and valve bodies go bad a lot more often than torque converters do.
 
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Old Feb 22, 2006 | 09:42 PM
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I am guessing this is an electronic contol tranny. So would it be possible that the TPS sensor is bad or what about the vacuum modulator?
 
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