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Mazda Truck
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1992
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Navajo 2WD V6-4.0L OHV
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Repair and Diagnosis
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Powertrain Management
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Ignition System
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Testing and Inspection
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Pinpoint Tests
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F - Misfire Under Load (Bad Plugs, Wires, or Short to Ground
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Test Step 4
Test Step 4
Pinpoint Test F4: