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The converter in my 700R4 seems to delay locking up when cold. It locks up at a higher rpm [maybe 1000 rpm] than when the car is warm. Once the car has been driven a short while and reaches operating temperature it works normally. Any suggestions on what to look at would be appreciated.
 

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Rough said:
The converter in my 700R4 seems to delay locking up when cold. It locks up at a higher rpm [maybe 1000 rpm] than when the car is warm. Once the car has been driven a short while and reaches operating temperature it works normally. Any suggestions on what to look at would be appreciated.
What type of vehicle? Stock OE vehicle , custom install , street rod?

How is the trans set to lock up the converter clutch?

Hydraulic lock up?

Electric lock up with an internal pressure switch?

How many miles on the trans?

Recent install of this trans?

Repair work on the vehicle recently?

:cool:
 

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Discussion Starter #3
1993 Camaro, less than 5K miles on the trans, 2800 vigilante converter maybe 1K miles [1/4 mile at a time] on converter, trans otherwise performs well. Thanks.
 

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I know teh 4l60e's will not lockup until either the engine or trans reaches a certain temp.

Since your 1993 car has the 4l60(no E) and has a PCM, I bet its woking normally.

peace
Hog
 
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