Operation CHARM
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GMC Truck
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1984
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S15/T15 2WD P/U L4-121 2.0L VIN Y 2-bbl
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Repair and Diagnosis
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Powertrain Management
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Ignition System
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Distributor
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Specifications
Distributor: Specifications
DISTRIBUTOR TIMING ADVANCE:
Degrees advance at engine rpm, no load, in addition to basic timing.
Mechanical advance distributors only.