Escape 2WD V6-3.0L (2009)
Exhaust Crossover Pipe: All Technical Service Bulletins
Exhaust System - MIL ON/DTC's P013A Or P013C Set
TSB 10-11-5
3.0L - MALFUNCTION INDICATOR LAMP (MIL)
ILLUMINATED WITH DIAGNOSTIC TROUBLE CODE
(DTC) P013A AND/OR P013C - POSSIBLE EXHAUST
LEAK
FORD:
2009-2010 Escape
MERCURY:
2009-2010 Mariner
This article supersedes TSB 10-3-1 to update the Service Procedure and Part List.
ISSUE
Some 2009-2010 Escape and Mariner vehicles equipped with a 3.0L engine may exhibit the malfunction indicator lamp (MIL) illuminated with
diagnostic trouble code (DTC) P013A - 02 sensor slow response, rich to lean - bank 1/sensor 2 and/or P013C - 02 sensor slow response, rich to lean -
bank 2/sensor 2. This may be due to an exhaust leak.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
NOTE
DTC P013A/P013C INDICATING A LACK OF SWITCH ARE TYPICALLY THE RESULT OF EITHER AN EXHAUST LEAK, EXHAUST
MODIFICATION, OR CATALYST MONITOR SENSOR (CMS) FAILURE WHICH WILL CAUSE CMS VOLTAGE READINGS TO BE OUT
OF RANGE. EXHAUST LEAK INSPECTION SHOULD BE CONDUCTED PRIOR TO CMS SENSOR DIAGNOSTICS.
1. Inspect and test the Y-pipe area for exhaust leaks.
a. Restrict exhaust flow at the tailpipe and inspect for carbon soot/moisture witness marks indicating a leak at the bank 1 flange area, bank 2 ball
and flare joint and/or CMS threads.
b. Misting a soapy water spray solution on the welds, joints and threads while the exhaust is restricted at the tailpipe will increase the ability to
identify and confirm leaks. Small foam bubbles or very slow growing large bubbles are normal, represent leak rates within specification and will
not illuminate the MIL.
2. Is a leak present?
a. No - this procedure does not apply, proceed with normal WSM diagnostics.
b. Yes - leak present.
(1) If Y-pipe is misaligned or under-torqued, follow Workshop Manual (WSM), Section 309-00 to service.
(2) If Y-pipe is found to be defective, replace Y-pipe assembly.
The CMS may be difficult to remove; apply penetrating oil and slowly twist sensor back and forth to assist in removal.
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
101105A
2009-2010 Escape,
1.0 Hr.
Mariner 3.0L: Replace The
Y-Pipe Assembly, Includes
Time To Perform The
Diagnosis In This Article
(Do Not Use With Any
Other Labor Operations)
