Contour V6-153 2.5L DOHC (1996)
Resonator: Customer Interest
Engine - Stall/Hooting or Moosing Noise
Article No.
96-19-5
09/09/96
^
STALL - INTERMITTENT - DURING IDLE AFTER DECELERATION - VEHICLES WITH 2.5L ENGINE
^
ENGINE - 2.5L - "HOOTING" OR "MOOSING" NOISE FROM ENGINE COMPARTMENT
^
NOISE - "HOOTING" OR "MOOSING" FROM ENGINE COMPARTMENT ON DECELERATION - VEHICLES WITH 2.5L ENGINE
FORD:
1995-97 CONTOUR
LINCOLN-MERCURY:
1995-97 MYSTIQUE
ISSUE:
A "hooting" or "moosing" noise after engine deceleration to idle may occur on some vehicles, primarily those equipped with manual transmissions. This
noise is noticeable when the driver decelerates by removing their foot from the accelerator pedal in the 3000 to 2000 rpm range. Continued deceleration
to below 1500 rpm may occasionally result in a stall in the near idle speed range. This may be caused by a resonance occuring within the air intake
system.
ACTION:
Replace the air intake duct, idle air resonator, and idle air hose with a revised Duct and Resonator Assembly (F6RZ-9B659-CA). Refer to the following
Service Procedure for details.
SERVICE PROCEDURE
1.
Disconnect crankcase ventilation hoses from air cleaner outlet duct.
2.
Loosen engine air cleaner outlet duct clamps.
3.
Loosen clamp retaining idle air hose to manifold.
4.
Remove air cleaner outlet duct from mass air flow sensor, throttle body, and resonator. Discard air cleaner outlet duct. Remove and discard idle air
hose, resonator, and two (2) clamps. Retain one (1) clamp (if needed, use a W700572-S300 clamp). Refer to Figure 1.