ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Safety Recall - CNG Backfire and Tank Valve Concern|Page 4691 > < Safety Recall - CNG Backfire and Tank Valve Concern|Page 4689
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Connect P120 to J120 at the tank valve solenoid. If Safety Recall 97S73 has been performed, the connector ends will be taped to ribbed vent
hoses.See Figure 41.

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NOTE

The CNG fuel tank must be completely full to perform the following steps.

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Turn off engine, switch selector to GFI position.

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Open quarter turn valve in CNG system.

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Start engine. Verify that the green GFI light remains illuminated.

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Raise vehicle.

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Leak test all connections from the intake manifold to the CNG tank, including compuvalve, regulator, filter, quarter turn valve and all fittings
using Snoop or a mild soap and water solution.

Safety Recall - CNG Backfire and Tank Valve Concern|Page 4691 > < Safety Recall - CNG Backfire and Tank Valve Concern|Page 4689