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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1861 (Automatic Transmission - 5AT - DTC P0218 To DTC P0761) >> DTC P0734 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

While driving in 4th gear, line pressure is supplied to the 4th clutch piston, the 4th clutch engages and the shaft and 4th gear rotate together to transmit drive force. Oil pressure is supplied to the 4th clutch via the suction filter, oil pump, main regulator, manual valve, shift valve, feed pipe and clutch piston. The powertrain control module (PCM) calculates the mainshaft speed to output shaft speed ratio.

When the calculated ratio is incorrect for 4th gear, while the PCM is commanding 4th gear, DTC P0734 sets. DTC P0734 is a type C DTC.

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