OEM Ford Crown Victoria Exhaust Manifold

Ford Crown Victoria Exhaust Manifold Parts and Q&A

• Exhaust Manifold, Driver Side
  4W7Z-9431-AA
  Q: How to remove and replace the left-hand exhaust manifold on Ford Crown Victoria?

  A:

  The procedure for left-hand exhaust manifold replacement starts with deactivating the fire suppression system because accidental deployment could cause serious harm. Before beginning install the vehicle into position on a hoist let the engine stop and use the Hunter(R) 28-75-1 Steering Wheel holding device to stabilize the wheel in a straight line. The intermediate shaft requires a stoppage of rotation during steering gear removal to protect the Clock Spring functionality; a rotated shaft requires Clock Spring refurbishment by removal. The technician should remove the intermediate shaft pinch bolt then detach the shaft before placing it away. Proceed by removing the exhaust manifold heat shield bolts at its two locations and extracting the shield before finding and discarding the Catalytic Converter-to-exhaust manifold nuts. First disconnect the EGR system module tube from the exhaust manifold before taking out the left-hand Heated Oxygen Sensor (HO2S). Discard eight exhaust manifold nuts after their removal, then remove the gasket, manifold and discard both items before removing the eight exhaust manifold studs. Exhaust manifold inspection should include flattening it before moving on to installation steps. Use eight new exhaust manifold studs before torquing them to 12 Nm (106 lb-in). Position the exhaust manifold gasket and exhaust manifold together followed by eight new nuts which need to be torqued in their respective order to 20 Nm (177 lb-in). attachments should be performed while the left-hand HO2S is reinstalled and the EGR system module tube needs to be fastened to the exhaust manifold with a torque of 43 Nm (32 lb-ft). Place the catalytic converter flange before installing new catalytic converter-to-exhaust manifold nuts which should be tightened to 48 Nm (35 lb-ft). Reinstall the exhaust manifold heat shield while tightening its two bolts to 10 Nm (89 lb-in). Position the intermediate shaft on steering gear and anchor it with the pinch bolt before tightening it to 30 Nm (22 lb-ft). deal with the installment of fire suppression system if present and follow all preventive measures to stay safe from severe injuries.
• Exhaust Manifold, Passenger Side
  4W7Z-9430-AA
  Q: How to service the right exhaust manifold on Ford Crown Victoria?

  A:

  Encounter of the right exhaust manifold requires disabling the fire suppression system for safety reasons before proceeding. Park the vehicle on the hoist in neutral position before disconnecting the battery ground cable. First rotate the Drive Belt tensioner clockwise while removing the drive belt and disconnect the crankshaft position (CKP) sensor and A/C compressor electrical connectors. After unbolting the transmission cooler tube bracket you can remove its nut and place both components aside. After you detach the three bolts from the A/C compressor you should set it aside. Immediately discard all connecting nuts between the Catalytic Converter and exhaust manifold before removing eight nuts and the exhaust manifold together with the gasket. Throw away both the nuts and gasket while keeping the eight exhaust manifold studs. Check the exhaust manifold flatness after you remove the eight exhaust manifold studs and dispose of them. When installing the exhaust manifold studs replace them eight at a time while applying a torque of 12 Nm corresponding to 9 ft. lbs. Fit a new exhaust manifold gasket after which you can install the exhaust manifold before securing it with eight new nuts that need to be tightened in their specified sequence to 20 Nm (15 ft. lbs.). Place the catalytic converter flange back into its position and use new nuts which need to be tightened until they reach 48 Nm (35 ft. lbs.). Position the A/C compressor with three bolts at 25 Nm (18 ft. lbs.) tension followed by installing the transmission cooler tube assembly and its nut to 9 Nm (80 inch lbs.). Screw and tighten the transmission cooler tube bracket bolt to 15 Nm (11 ft. lbs.). First connect the electrical wires of the A/C compressor and CKP sensor and next use the drive belt tensioner to install the drive belt by rotating the tensioner clockwise before reconnecting the Battery Cable ground. The supervisor must follow safety warnings during the fire suppression system repowering process to prevent severe personal injuries.