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Home >> Ford >> 1997 >> Crown Victoria V8-4.6L CNG SOHC VIN 9 >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Service and Repair >> Removal and Replacement >> Natural Gas Vehicle (NGV) Module

Natural Gas Vehicle (NGV) Module






1. Disconnect battery ground cable.

WARNING
- DO NOT MODIFY SYSTEM CONFIGURATION OR COMPONENTS OR REPLACE COMPONENTS WITH PARTS NOT ESPECIALLY DESIGNED FOR USE WITH NATURAL GAS. FORD MOTOR COMPANY HAS SPECIALLY DESIGNED THE MATERIALS, COMPONENTS AND SYSTEM CONFIGURATION FOR THE 4.6L (2V) CROWN VICTORIA NATURAL GAS (NGV) VEHICLE, AND EACH PARTICULAR SYSTEM IS PRECISELY CALIBRATED FOR EFFICIENT OPERATION. THE USE OF DIFFERENT PARTS OR MATERIALS COULD PRODUCE AN UNTESTED CONFIGURATION THAT COULD RESULT IN FIRE OR PERSONAL INJURY OR CAUSE ENGINE DAMAGE.
- IT IS IMPORTANT THAT YOUR NATURAL GAS VEHICLE BE PROPERLY MAINTAINED BY FORD NATURAL GAS TRAINED PERSONNEL. IF A PROBLEM OCCURS, IT IS IMPORTANT THAT PROPERLY TRAINED PERSONNEL DIAGNOSE THE CAUSE. IF THE PROBLEM RELATES TO THE FUEL SYSTEM, PROPER PART REPLACEMENT IS IMPERATIVE TO KEEP YOUR VEHICLE OPERATING AT NORMAL PERFORMANCE. COMPRESSED NATURAL GAS COMPONENTS AND STANDARD FUEL COMPONENTS ARE NOT INTERCHANGEABLE. IF YOUR VEHICLE IS NOT SERVICED IN ACCORDANCE WITH NATURAL GAS FUELED VEHICLE PROCEDURES, DAMAGE MAY OCCUR AND YOUR WARRANTY MAY BE INVALIDATED.

2. Remove eight push-pin retainers and remove upper radiator sightshield.
3. Carefully unsnap and remove Natural Gas Vehicle (NGV) Module plastic shroud over harness connector and disconnect 60-pin connector from NGV Module.
4. Remove two bracket bolts at upper end of bracket and pull hood latch to left and remove bracket assembly from vehicle.
5. Remove four cover screws, separate engine control housing cover from bracket and remove NGV Module.

NOTE: Engine control housing cover and mating bracket surface must be clean and dry to provide proper sealing. Use RTV silicone to repair any damaged seal or bracket surface if necessary.

INSTALLATION
1. Follow removal procedure in reverse order.

NOTE: For proper sealing, it is important to tighten engine control housing cover to bracket screws to 2-3 N.m (18-26 Lb-In).
2. Tighten NGV Module assembly to radiator support retaining screws to 8-10 N.m (71-88 Lb-In).
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