gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Transmission Position Switch/Sensor, A/T > < A/T - Buzzing Noise at Idle|Page 4579
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Fluid Pressure Sensor/Switch: Service and Repair

Pressure Switch Locations.

Remove or Disconnect:

1. Negative battery cable

-

Raise vehicle and suitably support

2. Transmission oil pan
3. Transmission oil filter and O-ring seal

Clean:

-

Gasket material from oil pan and case

-

Valve body components

4. Pressure switch

Install or Connect:

1. New pressure switch
2. New transmission oil filter and O-ring seal
3. Transmission oil pan, tighten bolts to 11 Nm (97 in lbs)
4. Fill with DEXRON-IIE automatic transmission fluid
5. Lower vehicle
6. Connect negative battery cable

Transmission Position Switch/Sensor, A/T > < A/T - Buzzing Noise at Idle|Page 4579