Seller notes

2007 and newer General Motors vehicles equipped with 6L45, 6L50, 6L80, 6L90 or GEN1 6T70 and 6T75 automatic transmissions often come in with damaged oil pressure switch diaphragms.These five diaphragms are referred to as “TFP” or transmission fluid pressure switches and they are located within the TEHCM. The computer uses these switches to fine tune the clutch-to-clutch shift sequencing and to maintain shift adaption values. The diaphragms can become compromised due to contamination after a ...

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