Superior 4T40E/4T45E Solenoid Sure-Cool Upgrade STL-006
Stop and go driving also spends most time in 1st or 4th, and passes through 2nd and 3rd very quickly when accelerating from a stop. The most common failure with this Trans is the 1-2 solenoid. It is ON typically 90-95% of the time, with no cooling provided, all it takes is one long hot trip to experience a meltdown. That defect is corrected with this kit.
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