Engine Controls - Idle Fluctuation/Possible DTC's Set
TSB 11-10-2110/20/11
IDLE RPM FLUCTUATION WITH OR WITHOUT
DTCS - P0505, P0506 AND/OR P061B
FORD:
2005-2007 Five Hundred, Freestyle
MERCURY:
2005-2007 Montego
This article supersedes TSB 11-8-5 to update the Service Procedure.
ISSUE
Some 2005-2007 Ford Freestyle, Five Hundred and Mercury Montego vehicles equipped with a 3.0L engine may exhibit diagnostic trouble codes (DTCs) P0505, P0506, PO61B and/or engine idle RPM fluctuation. The idle RPM fluctuation may be intermittent and DTCs P0505, P0506 and/or P061B may or may not be present.
ACTION
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
1. Reprogram the powertrain control module (PCM) to the latest calibration using IDS release 75.03A and higher. This new calibration is not included in the VCM 2011.9 DVD. Calibration files may also be obtained at the website.
2. Turn the key off to re-initialize the PCM. This will allow the throttle body compensation strategy to learn.
3. With the vehicle in park or neutral and A/C off, start the vehicle and allow the engine to reach normal operating temperature which is greater than 77 °C (170 °F) coolant temperature. Run an additional 5 minutes to allow sufficient learning time.
4. While the engine is running, using IDS datalogger or equivalent, check the PID value of ETC_TRIM.
5. If ETC_TRIM value is 3.0 degrees or greater and/or DTC P115E is present, proceed to Step 7.
6. If ETC_TRIM value is less than 3.0 degrees and DTC P115E is not present but drivability concerns persist, the electronic throttle body (ETB) is not the likely the cause of the concern and replacement is not necessary. Refer to Powertrain Control/Emissions Diagnosis (PC/ED) manual for normal diagnostics.
7. Remove the throttle body. Refer to Workshop Manual (WSM), Section 303-04.
8. Using Motorcraft(R) Choke and Linkage Cleaner or equivalent, spray the throttle body plate and bore. Using a small, soft, solvent resistant brush, clean the edges of the throttle plate and the mating sur[ace of the throttle bore to remove all engine deposit build up. Reapply choke and linkage cleaner. (Figures 1-2)
NOTE
DO NOT SPRAY CLEANER DIRECTLY INTO THROTTLE PLATE PIVOT SHAFT.
9. Install the throttle body. Refer to WSM, Section 303-04.
Parts Block
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
111021A 2005-2007 Five Hundred, 1.1 Hrs.
Freestyle, Montego: Check
DTCs, Reprogram The
PCM, Warm The Engine,
Monitor PIDS, And Clean
The Throttle Body Includes
Time To Remove And
Install The Throttle Body
(Do Not Use With Any
Other Labor Operations)
111021B 2005-2007 Five Hundred, 0.6 Hr.
Freestyle, Montego: Check
DTCs, Reprogram The
PCM, Warm The Engine,
And Monitor PIDS
DEALER CODING
CONDITION
BASIC PART NO. CODE
9F991 49
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