K 1500 Truck 4WD V8-6.5L DSL Turbo VIN S (1999)
Backup Lamp Switch: Adjustments
Automatic Transmission - 4L60-E
Adjustment Procedure
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Check the switch for proper operation.
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The engine must be in the P (Park) or N (Neutral) positions only. If adjustment is required, loosen the switch retaining bolts and rotate the switch
slightly.
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Tighten the bolts and check the switch for proper operation.
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Repeat the switch adjustment procedure until the engine starts when the shift lever is positioned in park and neutral.
Automatic Transmission Fluid/Filter Changing
Removal Procedure
1. Raise and the vehicle. Refer to Vehicle Lifting.
2. Place a drain pan under the transmission oil pan.
3. Remove the oil pan drain plug.
4. Remove the oil pan bolts.
5. Remove the oil pan.
6. Remove the gasket.
7. Remove the magnet.
8. Remove the oil filter.
9. Remove the filter neck seal.
10. The transmission oil pan gasket is reusable. Inspect the gasket and replace as needed.
11. Clean the transmission case and the oil pan gasket surfaces with solvent.
12. Air dry the transmission case and surfaces.
Installation Procedure
1. Install the filter neck seal.
2. Install the oil filter.
