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TSB 08-20-3

10/13/08

MALFUNCTION INDICATOR LAMP (MIL) ON WITH
DIAGNOSTIC TROUBLE CODE (DTC) P013C AND/OR
P013A - BUILT PRIOR TO 8/18/2008

FORD:
2009 Escape

MERCURY:
2009 Mariner

ISSUE
Some 2009 Escape and Mariner vehicles equipped with a 3.0L engine and built prior to 8/18/2008 may exhibit DTC P013C and/or P013A. The DTCs may be caused by an exhaust leak at bank 2 Y-pipe ball and flare joint.

ACTION
Follow Service Procedure steps to correct condition.

SERVICE PROCEDURE
NOTE
DTCS P013A / P013C INDICATING A LACK OF SWITCH ARE TYPICALLY A RESULT OF EXHAUST LEAKS OR EXHAUST MODIFICATIONS. EXHAUST LEAKS OR EXHAUST MODIFICATIONS WILL CAUSE CATALYST MONITOR SENSOR (CMS) OUT OF RANGE VOLTAGE READINGS. THE CMS SENSOR IS THE LEAST LIKELY CAUSE.

1. Inspect bank 2 (front of engine) Y-pipe ball and flare joint for exhaust leaks by restricting exhaust flow at the tailpipe. Also look for carbon soot and moisture witness marks indicating a leak at the bank 2 ball and flare joint.

2. If a leak is found replace the Y-pipe assembly.

3. Disconnect the left hand (LH) Catalyst Monitor Sensor (CMS) electrical connector.

4. Remove and discard the two (2) 10 mm catalytic converter-to-exhaust Y-pipe spring nuts and gasket.

5. Remove and discard the four (4) exhaust Y-pipe nuts, gasket and remove the Y-pipe.

6. Install service Y-pipe assembly, and bank 1 flat flange gasket, tighten four (4) exhaust flange nuts to 18 lb-ft (25 N.m) starting with flat flange on bank 1 and then ball and flare joint on bank 2.

7. Install catalytic converter-to-exhaust Y-pipe gasket and spring nuts, tighten to 18 lb-ft (25 N.m).

8. Recheck for exhaust leaks.

Parts Block
PART NUMBER
PART NAME
9L8Z-5E256-BExhaust Y-pipe
9L8Z-5E241-AGasket - Y-pipe-to-Exhaust
9L8Z-9450-AGasket - Flat Flange - Catalytic Converter Manifold-to-Y-pipe
W520413-S441Flange Nut (4 Required)
9L8Z-5G215-ASpring Nut (2 Required)
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
082003A2009 Escape, Mariner 3.0L Engine: Replace The Y-Pipe Assembly, Includes Time To Perform The Diagnosis In This Article. (Do Not Use With 12650D 5246A)
1.1 Hrs.​
DEALER CODING
BASIC PART NO.
CONDITION CODE
5E256
07​
 
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