Excursion 4WD V8-5.4L SOHC VIN L (2001)
Exhaust Pipe: Customer Interest
Exhaust System - 'Miss' Sound From Exhaust
Article No.
01-1-3
01/22/01
^
ENGINE - "MISS" NOISE FROM EXHAUST -
UPDATED EXHAUST Y-PIPE AVAILABLE -
VEHICLES EQUIPPED WITH 5.4L OR 6.8L
ENGINE - BUILT THROUGH 9/10/2000
^
EXHAUST - "MISS" NOISE FROM EXHAUST -
UPDATED EXHAUST Y-PIPE AVAILABLE -
VEHICLES EQUIPPED WITH 5.4L OR 6.8L
ENGINE - BUILT THROUGH 9/10/2000
^
NOISE - "MISS" NOISE FROM EXHAUST -
UPDATED EXHAUST Y-PIPE AVAILABLE -
VEHICLES EQUIPPED WITH 5.4L OR 6.8L
ENGINE - BUILT THROUGH 9/10/2000
FORD:
2000-2001 EXCURSION, F SUPER DUTY
ISSUE
Some vehicles may exhibit a "miss" sound from the exhaust. This may be caused by the design of the exhaust Y-pipe which can cause a "miss" like
sound known as impingement.
ACTION
Replace the Y-pipe with updated design to reduce "miss" sound and update the calibration of the Powertrain Control Module (PCM). Refer to the
following Service Procedure for details.
SERVICE PROCEDURE
REMOVAL OF OLD Y-PIPE
1.
Raise the vehicle on a hoist.
2.
Disconnect the heated oxygen sensor electrical connections and transfer both heated oxygen sensors to the new Y-pipe. Apply a small amount of
Ford Anti-Seize Compound (F6AZ-9L494-AA) (or equivalent meeting Ford specification ESE-M12A-A) to the threads on both oxygen sensors.
3.
Remove the LH and RH nuts connecting the Y-pipe to the exhaust manifolds.
4.
Remove the three (3) nuts which attach the Y-pipe to the catalytic convener and discard the gasket.
INSTALLATION OF NEW Y-PIPE
Refer to the appropriate model year Workshop Manual section 309-00 for installation instructions and specifications.
1.
Position the new Y-pipe (1C3Z-5246-AA).
2.
Install the new flange gasket (F6TZ-5C226-BA) and three (3) nuts.
3.
Install the two (2) nuts on both the right and left side Y-pipe-to-exhaust manifold connections.
4.
Connect the heated oxygen sensor electrical connections.
5.
Lower the vehicle.
