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4l80e not locking up
Vehicle in question is a 1999 GMC K2500 5.7L 4l80e 4x4 My question is what all electronics wise would prevent the ecu from commanding lockup? The torque converter would lock up prior to me pulling the engine for a GMPP 395 cam swap. I can command lockup with my scan tool and it locks up...- Meece93
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- Forum: The Garage
