Yukon 4WD V8-6.5L DSL Turbo VIN S (1997)
INSTALLATION
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Tools Required
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J 22102 Seal Installer, Or Equivalent
NOTE: Replacing either of the following will affect timing:
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The timing chain
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The timing gears
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The front cover
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The Crankshaft Position (CKP) sensor
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The crankshaft
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It will then be necessary to reprogram TDC Offset (Recovery) into the PCM.
1. Clean the front cover and the block sealing surfaces, in order to ensure that they are free from oil.
CAUTION: Perform TDC Offset Recovery procedure in Powertrain Management if the timing chain, timing gears, engine front cover, crankshaft
position sensor, crankshaft or other components affecting the timing are replaced.
2. Install the front crankshaft oil seal using the seal installer with the open end of the seal facing the inside cover.
3. Coat the seal lips with grease.
4. Apply a 2 mm (3/32 inch) bead of anaerobic sealant GM P/N 1052357, or the equivalent, to the front cover sealing area.
