Operation CHARM
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Ford Truck
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1989
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E 250 Van L6-300 4.9L
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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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Component Tests and General Diagnostics
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Primary Circuit Tests
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Test 6, TFI Module
Test 6, TFI Module
1.
If Tach light blinked in Test 4, proceed to Test 7.
2.
If Tach light did not blink, replace TFI module and check for spark using procedures in Test 1. If spark is not present, replace coil also.