cold trans shifting
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Senior User
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From: Maine
cold trans shifting
Has anyone experienced crisper 3to4 shifts until engine warms to norm op temps or is this just another call for a tru cool unit for my trans
My tranny shifts like new other than from third to OD where it jumps in rpm hideously before locking in. I am starting to get nausiated by this, I just dumped way too much on a tranny for a gutless 94 Pathfinder just to keep it on the road for a while longer for the kid.
I hate too beat a dead horse but I really need some help or advice on this. Thanks much, Dan
My tranny shifts like new other than from third to OD where it jumps in rpm hideously before locking in. I am starting to get nausiated by this, I just dumped way too much on a tranny for a gutless 94 Pathfinder just to keep it on the road for a while longer for the kid. I hate too beat a dead horse but I really need some help or advice on this. Thanks much, Dan
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From: South Dakota
This vehicle has been equipped with a special cold weather shift strategy. This was designed to maximize heater output. This new strategy operates under the following conditions: ambient air temperature at start up is -4ºC (25ºF) or below and the engine coolant temperature at start up is 38ºC (100ºF) or below. During this condition the vehicle may experience slightly delayed shifts under light throttle. Medium and heavy throttle shifts will be normal. Once the engine coolant reaches 71ºC (160ºF) or above, normal shift scheduling will resume. If during the diagnosing of a delayed shift concern and the concern goes away after the engine coolant reaches above 71ºC (160ºF), this is a normal operation of the special cold weather shift strategy. If this condition does not go away after the engine coolant reaches 71ºC (160ºF), refer to «Diagnosis by Symptom» in this section. This is out of the Ford Maintenance manual. Mine does the same thing.
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From: New Hampshire
Originally Posted by nodakford
This vehicle has been equipped with a special cold weather shift strategy. This was designed to maximize heater output. This new strategy operates under the following conditions: ambient air temperature at start up is -4ºC (25ºF) or below and the engine coolant temperature at start up is 38ºC (100ºF) or below. During this condition the vehicle may experience slightly delayed shifts under light throttle. Medium and heavy throttle shifts will be normal. Once the engine coolant reaches 71ºC (160ºF) or above, normal shift scheduling will resume. If during the diagnosing of a delayed shift concern and the concern goes away after the engine coolant reaches above 71ºC (160ºF), this is a normal operation of the special cold weather shift strategy. If this condition does not go away after the engine coolant reaches 71ºC (160ºF), refer to «Diagnosis by Symptom» in this section. This is out of the Ford Maintenance manual. Mine does the same thing.
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Joined: Dec 2004
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From: Wichita, KS
Originally Posted by nodakford
During this condition the vehicle may experience slightly delayed shifts under light throttle. Medium and heavy throttle shifts will be normal.
I always turn the o/d off when driving with the tranny in this state. Am I wasting my time or is it better to have that o/d locked out while driving under 40-45mph?
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If I may pose another question here. I have an 01, D, auto , I live in the Denver area, since it has gotten cold (30F) here I have noticed ( actually can hear it ) the tranny slipping in the morning until it warms up. It will do it through all three gears. I have heard this would be normal. Anyone have any comments about this.
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From: Maine
Originally Posted by nodakford
This vehicle has been equipped with a special cold weather shift strategy. This was designed to maximize heater output. This new strategy operates under the following conditions: ambient air temperature at start up is -4ºC (25ºF) or below and the engine coolant temperature at start up is 38ºC (100ºF) or below. During this condition the vehicle may experience slightly delayed shifts under light throttle. Medium and heavy throttle shifts will be normal. Once the engine coolant reaches 71ºC (160ºF) or above, normal shift scheduling will resume. If during the diagnosing of a delayed shift concern and the concern goes away after the engine coolant reaches above 71ºC (160ºF), this is a normal operation of the special cold weather shift strategy. If this condition does not go away after the engine coolant reaches 71ºC (160ºF), refer to «Diagnosis by Symptom» in this section. This is out of the Ford Maintenance manual. Mine does the same thing.
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