Electrical/Body - Light Tapping/Fluttering Noise At Idle
TSB 10-3-403/01/10
4.0L - LIGHT ENGINE TYPE KNOCKING/TAPPING OR
FLUTTERING NOISE
FORD:
2010 Ranger
ISSUE
Some 2010 Ranger vehicles equipped with a 4.0L engine and built on or before 1/8/2010. Vehicles may exhibit a light knocking/tapping or fluttering noise from the under hood, dashboard or instrument panel. The noise may vary with engine load or RPM and can be difficult to diagnose.
The noise is due to the powertrain control module (PCM) engine harness tapping against the wiper linkage access cover located on the center of the bulkhead. See access cover location illustration in Workshop Manual (WSM), Section 501-16.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
To eliminate the noise:
1. Disconnect the wire harness attachment device at the coil pack bracket.
2. Use a tie-strap around the harness and the coil pack bracket at the engine attachment point.
NOTE
BE SURE TO TIGHTEN OR CINCH TIE-STRAP TIGHTLY TO PREVENT RUBBING AT THE BRACKET. BE SURE TO CUT-OFF OFF THE EXCESS TIE-STRAP MATERIAL TO PREVENT IT FROM RATTLING AGAINST DASH.
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.
OPERATION DESCRIPTION TIME
100304A 2010 Ranger 4.0L: Secure 0.2 Hr.
Wire Harness Following
Service Procedure.
DEALER CODING
CONDITION
BASIC PART NO. CODE
12B637 43
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