Sierra 1500 2WD V8-5.3L VIN Z Flex Fuel (2006)
43. Install the O-rings (3 and 4) onto the MAIN MOD solenoid (6).
Important:
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The solenoid O-rings are blue and white.
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O-ring (3) is slightly larger than O-ring (2)
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P/N 29536833 is printed on the modulated main pressure (MAIN MOD) solenoid.
44. Install the MAIN MOD solenoid (6).
45. Install the MAIN MOD solenoid retainer (5) into the bottom of the valve body.
46. Install the MAIN MOD solenoid body assembly (2).
47. Install the 2 bolts (1) retaining the MAIN MOD solenoid valve body and the shift valve body to the main valve body.
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Tighten bolts to 12 Nm (108 inch lbs.).
Important: Four bolts pass through the MAIN MOD solenoid valve body to retain the control valve body assembly to the transmission case.
Install these bolts when installing the control valve body assembly.