Ford 3W7Z-9Y427-AA
Heat Shield, Driver Side

All maintenance on exhaust heat shields for catalytic converters and mufflers must start by disconnecting the power to the air suspension system to stop the air springs from unintentionally changing height which might cause shifting during work operations. Turn off the air suspension switch before you perform the first step of securely lifting up the vehicle. Check the catalytic converter to find any detached or absent heat shields. Worm clamps F0TZ-5A231-A or W705949-S300 should be used to secure loose heat shields then remove extra clamp ear. Heat shields need installation if they are missing; otherwise, replacing the catalytic converter becomes necessary. Finally, lower the vehicle.

Perform any exhaust heat shield work for the catalytic converter and muffler only after you have cut off air suspension electrical power to stop air spring changes which might cause vehicle movement while performing hoisting or jacking or towing actions. Put the vehicle in NEUTRAL position on a hoist before switching off the air suspension control. Confirm that the exhaust system contains all its heat shields intact and undamaged. The heat shield installation requires worm clamps according to two available specifications - FOTZ-5A231-A or W705949-S300. Cut away the extra worm clamp ear after installing it. New heat shields or essential exhaust system components should be used for replacing any missing or damaged heat shields. Finally, lower the vehicle.

It is necessary to turn off the air suspension system electrical power before repairing heat shields on the catalytic converter and muffler because power fluctuations can lead to unpredictable air spring expansion or contraction which might cause vehicle shifting. The vehicle should be parked on a hoist with the air suspension system disable switch turned off while remaining in NEUTRAL gear. First examine the exhaust system for heat shields that are loose or damaged or completely missing from their position. Worm clamps of types F0TZ-5A231-A or W705949-S300 should be used to secure loose heat shields then trim off the remaining clamp ear. Heat shields need replacement with new components or you must use necessary exhaust system parts if shields are missing or damaged.

The air suspension electrical power must be switched off before working on exhaust heat shields for the catalytic converter and muffler because unexpected air spring movement could shift the vehicle while hoisting or jacking or towing. Remove power from the air suspension switch before you position the vehicle to NEUTRAL on a hoist. The exhaust system requires inspection for unrestraints and damaged or gone heat shields. Install worm clamps to fix loose heat shields by using F0TS-5A231-A or W705949-S300 parts and cut off any excessive clamp ear material. The procedure calls for heat shield replacement when those components show damage or absence alongside necessary exhaust system components replacements. Finally, lower the vehicle.

The initial step for exhaust heat shield and catalytic converter muffler repair begins by disabling the fire suppression system from the vehicle in case it exists. Put the vehicle on a hoist only during neutral gear operation. When conducting hoisting or jacking operations on air suspension vehicles the electrical power to the air suspension system must be shut off first to stop sudden air springs behavior that could lead to shifting. Complete this operation by switching off the air suspension control if such functionality exists. Thoroughly check the exhaust system to identify heat shields that are loose or damaged or totally missing. Worm clamps F0TZ-5A231-A or W705949-S300 should be used to secure loose heat shields by cutting away extra ear material from the clamps. The system requires new heat shields for all missing or damaged components of the exhaust system. Set the air suspension switch to ON position after completing repairs when the system has this functionality. The vehicle requires fire suppression system recharging as its last maintenance step.

All maintenance on exhaust heat shields for catalytic converters and mufflers must start by disconnecting the power to the air suspension system to stop the air springs from unintentionally changing height which might cause shifting during work operations. Turn off the air suspension switch before you perform the first step of securely lifting up the vehicle. Check the catalytic converter to find any detached or absent heat shields. Worm clamps F0TZ-5A231-A or W705949-S300 should be used to secure loose heat shields then remove extra clamp ear. Heat shields need installation if they are missing; otherwise, replacing the catalytic converter becomes necessary. Finally, lower the vehicle.