Engine - Rattle/Ticking Noise During Cold Start Up
TSB 11-11-2211/18/11
4.0L ENGINE - RATTLE OR TICKING NOISE FROM
ACCESSORY DRIVE BELT TENSIONER
FORD:
2010 Explorer Sport Trac, Explorer
2010-2011 Ranger
MERCURY:
2010 Mountaineer
The article supersedes TSB 11-2-7 to update the Issue Statement and Service Procedure.
ISSUE
Some 2010-2011 Ranger, 2010 Explorer, Explorer Sport Trac and Mountaineer vehicles equipped with a 4.0L engine, may exhibit a rattle or ticking noise from the accessory drive belt tensioner. The rattle or ticking noise is most evident immediately after a cold start, but can also be noticed at normal operating temperatures.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
1. Using a stethoscope, listen for a rattle or ticking noise from the accessory drive belt tensioner while the engine is idling.
a. If the noise is present in the tensioner, proceed to step 2.
b. If the noise is not present in the accessory drive belt tensioner, do not continue this article. Refer to Workshop Manual (WSM), Section 303-05 for normal diagnostics.
2. Replace the accessory drive belt tensioner. Refer to WSM, Section 303-05.
Parts Block
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty/ESP coverage limits/policies are not altered by a TSB. Warranty/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.
Parts Block
OPERATION DESCRIPTION TIME
111122A 2010 Explorer, 0.4 Hr.
Mountaineer And Explorer
Sport Trac 4.0L: Diagnose,
And Replace The Drive
Belt Tensioner (Do Not
Use With Any Other Labor
Operations)
111122A 2010-2011 Ranger 4.0L: 0.5 Hr.
Diagnose, And Replace
The Drive Belt Tensioner
(Do Not Use With Any
Other Labor Operations)
DEALER CODING
CONDITION
BASIC PART NO. CODE
6B209 42
Disclaimer