Silverado 1500 2WD V6-4.3L (2007)
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Inspect transmission filter for any cracks, holes or split seams that may allow air to be sucked into the pump.
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Inspect the check balls for roundness ensuring that there are no flat spots.
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Measure all the valve body bore plugs (328) for diameter. The specification is 11.502 mm +/- 0.004 mm. Undersize bore plugs should be replaced.
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Inspect clutch select valve 2 (352) (Closest to the manual valve) in the lower valve body (351) for freedom of movement and travel.
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Inspect CBR1/ C456 Reg Valve (327) in the upper valve body (321) for freedom of movement and travel.
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Perform Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test (SI Document ID # 1618572) to determine
if shift solenoid # 1 is functioning properly.
Important:
The seals included in plate kit, P/N 24236934, should be replaced when the valve body is assembled. Do not reuse the old seals.
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Replace the spacer plate with P/N 24245720. This spacer plate makes use of a revised gasket to help reduce the occurrence of DTC P0751.
