F 150 Heritage 4WD Pickup V8-5.4L CNG VIN M (2004)
1
Position the manual control valve detent lever spring.
2
Install the bolt.
6. Tighten the main control valve body bolts in the sequence shown.
7. Inspect the lead frame for damage.
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Using the special tool, check all lead frame solenoid connections. The gauge should fit tightly and not fall out after being inserted.
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If the special tool passes through any lead frame connector pins or does not feel like it makes a good contact, install a new lead frame.