GM Service Manual Online
For 1990-2009 cars only
Makes
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Generic
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1998
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Unit Repair
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Transmission/Transaxle
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Automatic Transaxle - 3T40
🢒 Control Valve Body and Oil Pump Inspection
Inspect the control valve body for the following:
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Porosity
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A worn, scored, or damaged pump pocket
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Interconnected oil passages
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Damaged machine surfaces
Inspect the pump components for the following:
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A worn, scored, or gouged pump slide
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Cracks, wear, or damage to the rotor or to the vanes
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Cuts or damage to the seals