Sierra Classic 2500 4WD V8-6.0L (2007)
Fluid Filter - A/T: Service and Repair
Allison - Automatic Transmission
Transmission Fluid Filter Adapter Replacement
Transmission Fluid Filter Adapter Replacement
Removal Procedure
1. Important:
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DO NOT drain the fluid if only the transmission external oil filter adapter is being replaced.
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Use a standard strap-type filter wrench to remove or install the transmission external oil filter.
Remove the transmission external oil filter (4) by rotating in the counterclockwise direction.
2. Remove the magnet (2) from the transmission external oil filter adapter (1) in the converter housing or from the filter element.
3. Clean any metal debris from the magnet. Presence of any metal pieces larger than dust may indicate that transmission replacement or overhaul is
required.
4. Remove the filter adapter (1) from the converter housing.
Installation Procedure
1. Install the transmission external oil filter adapter (1).
Notice:
Refer to Fastener Notice in Service Precautions.
Tighten the adapter to 30 Nm (22 ft. lbs.).
2. Reinstall the magnet (2) onto the filter adapter (1).
3. Lubricate the gasket (3) on the transmission external oil filter with transmission fluid.
4. Install, by hand, the transmission external oil filter (4) until the gasket on the filter touches the converter housing.
5. Notice:
Turning the transmission external oil filter more than ONE FULL TURN after gasket contact will damage the filter and may cause fluid leakage.
Turn the filter ONE FULL TURN ONLY after gasket contact.
6. Notice:
Use only clean and approved transmission fluid.
Check the transmission fluid level. Refer to Transmission Fluid Check.
