TSB
08-18-2 MIL ON - P0506 AND/OR P0505 - HESITATION/LOSS OF RPM/DIFFICULTY STARTING/LOW IDLE RPM

Publication Date: August 21, 2008

FORD: 2005-2007 Crown Victoria, Grand Marquis
2006 Mustang, Mustang
2004-2006 F-150, F-150
2005-2006 E-350, E-450, F-Super Duty
2006 F-53 Motorhome Chassis
2006-2007 Explorer Sport Trac, Explorer, Mountaineer, Mountaineer
LINCOLN: 2005-2007 Town Car
2006 Mark LT


This article supersedes TSB(s) 08-5-13, 07-23-12 and 06-25-8 to update the Service Procedure.

ISSUE:
Some 2004-2006 4.6L and 5.4L F-150 (excluding F-150 Heritage), 2006 5.4L Mark LT, 2005-2006 6.8L E-350 / E-450, 2005-2006 6.8L F-Super Duty (F-250 to F-550), 2006 6.8L F-53 Motorhome Chassis, 2006-2007 4.0L Explorer 4 dr, 2007 4.0L Explorer Sport Trac, 2006-2007 4.0L Mountaineer, 2006 4.0L Mustang, 2006 - 2007 4.6L 3V Explorer / Explorer Sport Trac / Mountaineer, 2006 4.6L 3V Mustang, and 2005-2007 Crown Vic / Grand Marquis / Towncar vehicles may exhibit one or more of the following symptoms: drive-away hesitation, loss of RPM on deceleration, difficulty starting, and/or idle RPM less than desired. Malfunction indicator lamp (MIL) may be illuminated with diagnostic trouble codes (DTCs) P0506 and/or P0505. These conditions may appear after battery disconnect, dead battery condition, or keep alive memory (KAM) reset. The symptoms may be due to engine deposits in the throttle leading to airflow less than desired.

ACTION:
Follow the Service Procedure steps to correct the condition.

SERVICE PROCEDURE

Reprogram the powertrain control module (PCM) to the latest calibration using IDS release 53.9 and higher or 54.1 and higher. This new calibration is not included in the VCM 2008.1 DVD. Calibration files may also be obtained at www.motorcraft.com. The calibration contains a sludge compensation strategy for the throttle body.
Turn the key off to re-initialize the PCM. This will allow the sludge compensation strategy to learn.
With the vehicle in park or neutral and A/C off, start vehicle and allow engine to reach normal operating temperature(greater than 170 °F (77 °C) coolant temperature). Run an additional 5 minutes to allow sufficient learning time.
While the engine is running, using IDS datalogger or equivalent, check the PID value of ETC_TRIM.
If ETC_TRIM value is 3.5 degrees, and/or DTC P115E is present, then replace the electronic throttle body (ETB), following Workshop Manual (WSM), Section 303-04B.
If ETC_TRIM value is less than 3.5 degrees and DTC P115E is not present, but driveability concerns persist, the ETB is not the likely cause of the concern and replacement is not necessary. Continue with normal PC/ED diagnostics.
NOTE: VEHICLES EQUIPPED WITH A PCM AND TCM REQUIRE COORDINATED REPROGRAMMING. THIS COORDINATED REPROGRAMMING PROCEDURE MUST BE FOLLOWED EXACTLY AS OUTLINED BY THE IDS. FAILURE TO FOLLOW THE KEY CYCLE PROCEDURE WITHOUT WAITING FOR THE IDS PROMPTS, WILL CAUSE THE COORDINATED REPROGRAMMING TO FAIL. THE PCM WILL BE UPDATED BUT THE TCM WILL NOT BE UPDATED AND NEW FILES WILL NOT BE INSTALLED. IT IS CRITICAL TO FOLLOW THE IDS PROMPTS. SOME VEHICLES MAY REQUIRE SEVERAL DAYS OF DRIVING FOR THE TRANSMISSION TO FULLY ADAPT. REPROGRAMMING CONCERNS/ERRORS MAY BE CAUSED BY THE DATA LINK CONNECTOR (DLC) OR VEHICLE COMMUNICATION MODULE (VCM) BECOMING DISCONNECTED, LOW BATTERIES ON THE INTEGRATED DIAGNOSTIC SYSTEM (IDS) OR THE IDS GOING INTO ANY TYPE OF SLEEP MODE, OR LOW VEHICLE BATTERY VOLTAGE. IF THERE WAS AN INTERRUPTION DURING REPROGRAMMING, MAKE SURE THE ORIGINAL IDS SESSION THAT WAS CREATED FOR THE VEHICLE IS NOT DELETED. IF THE ORIGINAL VEHICLE SESSION IS NOT USED OR DELETED BEFORE THE MODULES ARE COMPLETELY REPROGRAMMED, FURTHER REPROGRAMMING ERRORS CAN OCCUR. THE MODULE RECOVERY PROCEDURE IS NO LONGER AVAILABLE AND IT IS CRITICAL THAT MODULE SWAPPING IS NOT PERFORMED FROM VEHICLE TO VEHICLE. TO REGAIN COMMUNICATION WITH A MODULE THAT HAS BEEN ERASED DURING REPROGRAMMING, RESUME THE ORIGINAL SESSION ONCE THE IDS IS RE-BOOTED.




PART NUMBER PART NAME
9W7Z-9E926-B Throttle Body - 4.0L, 4.6L 2V,
8L3Z-9E926-B Throttle Body - 5.4L
9R3Z-9E926-B Throttle Body - 4.6L 3V Mustang Built After 12/7/2005
6L2Z-9E926-C Throttle Body - 4.6 3V Explorer, Sport Trac, Mountaineer
9C3Z-9E926-B Throttle Body - 6.8L


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
081802A 2004-2006 F-150 4.6L/5.4L, 2006 Mark LT, Econoline 350/450 6.8L, 2005-2006 F-Super Duty 6.8L, 2006-2007 Explorer/Mountaineer 4.0L, 2007 Explorer Sport Trac 4.0L, 2006 Mustang 4.0L, 2005-2007 Crown Victoria, Town Car, Grand Marquis: Check For DTCs And Reprogram The PCM, Includes Time To Monitor ETC_Trim Value, Authorization Decal NOT Necessary. (Do Not Use With 9926A, 12650D) 0.4 Hr.
081802A 2006-2007 Explorer/Mountaineer 4.6L, 2007 Explorer Sport Trac 4.6L: Check For DTCs And Reprogram The PCM And TCM, Includes Time To Monitor ETC_Trim Value, Authorization Decal NOT Necessary. (Do Not Use With 9926A, 12650D) 1.0 Hr.
081802B 2004-2006 F-150 5.4L, 2006 Mark LT: Check For DTCs And Reprogram The PCM, Includes Time To Monitor ETC_Trim Value, Replace Throttle Body, Authorization Decal Not Necessary. (Do Not Use With 9926A, 12650D) 0.9 Hr.
081802B 2004-2006 F-150 4.6L: Check For DTCs And Reprogram The PCM, Includes Time To Monitor ETC_Trim Value, Replace Throttle Body, Authorization Decal Not Necessary. (Do Not Use With 9926A, 12650D) 0.8 Hr.
081802B 2005-2006 Econoline 6.8L: Check For DTCs And Reprogram The PCM, Includes Time To Monitor ETC_Trim Value, Replace Throttle Body, Authorization Decal Not Necessary. (Do Not Use With 9926A, 12650D) 1.1 Hrs.
081802B 2005-2006 F-Super Duty 6.8L: Check For DTCs And Reprogram The PCM, Includes Time To Monitor ETC_Trim Value, Replace Throttle Body, Authorization Decal Not Necessary. (Do Not Use With 9926A, 12650D) 0.9 Hr.
081802B 2006-2007 Explorer, Mountaineer 2007 Explorer Sport Trac 4.6L: Check For DTCs And Reprogram The PCM And TCM, Includes Time To Monitor ETC_Trim Value, Replace Throttle Body, Authorization Decal Not Necessary. (Do Not Use With 9926A, 12650D) 1.4 Hrs.
081802B 2006-2007 Explorer, Mountaineer 2007 Explorer Sport Trac 4.0L: Check For DTCs And Reprogram The PCM, Includes Time To Monitor ETC_Trim Value, Replace Throttle Body, Authorization Decal Not Necessary. (Do Not Use With 9926A, 12650D) 0.8 Hr.
081802B 2005-2007 Crown Victoria, Town Car, Grand Marquis: Check For DTCs And Reprogram The PCM, Includes Time To Monitor ETC_Trim Value, Replace Throttle Body, Authorization Decal Not Necessary. (Do Not Use With 9926A, 12650D) 0.8 Hr.
081802B 2006 Mustang 4.0L/4.6L: Check For DTCs And Reprogram The PCM, Includes Time To Monitor ETC_Trim Value, Replace Throttle Body, Authorization Decal Not Necessary. (Do Not Use With 9926A, 12650D) 0.8 Hr.

 

No what do you do when you can re flash to new PCM update due to you running a supercharger? lol

 

I have a 2006 with this same problem i bought this truck used with 30k miles on it and it just started after the 2nd month i have had it. anyone figure out what it is i have now put a diablo tuner and k&n cold air induction kit in it and it still does it from time to time.

 

FINALLY Im so glad I found this thread My 06 5.4 has been doing this for about 6 months now and the dealer cant find anything wrong since they are only trained to read a scan tool to fix anything. Same as everybody else, I park for a few min to get gas or something come back out and it wont fire the first 2 times. This has happened about 5 times in that 6 month time frame and I just hit 41K. HAS anybody found a fix yet????????

 

I'll throw in my .02 on this issue. My truck had this problem for about 3-4 months until finally it wouldn't start at all. Even with my remote start it would crank and crank but no start. The issue with mine was..... brace yourself now, the friggin battery. I was parked at lowe's and thats when the battery finally died on me, after replacing with a new battery it's been starting strong ever since. Don't know if anyone has checked it yet, it would be worth a shot.

 

I've experienced the no-start issue since my truck was new. Fortunately, I found Paralyzer's post a couple of months ago and had my truck's PCM reflashed--I figured I had nothing to lose since I'd already exhausted just about every other possibilty. The problem hasn't returned since I had the reflash. Best $89 I've spent on the truck yet.

FWIW, the no-start problem in my truck didn't seem to be related to any of the following:
- Battery: truck exhibited problem since new. I replaced the battery at the 48-month point, and the truck still had the occasional no-start,
- Fuel filter: I've changed the fuel filter three times in 48,000 miles. No-start would happen with a brand new filter and with an older one.
- Not holding the key in START long enough: I always place the key to ON for approx 3-5 seconds, then place the key to START. Problem still happened.

So far, the only problem I've noticed with the reflash is that my fuel mileage has decreased approx 1-1.5 MPG compared to the previous calibration. However, on the positive side, I no longer hear light engine knock under light to moderate acceleration (something Ford's vehicle manual says is "normal").

Anyway, the reflash worked for me. Good luck!

 

well since this was my thread and I havent posted in a while, ill give you guys an update. winter is here and cold in maine...believe it or not, It hasnt given me any trouble since say....early december. I have done nothing at all to fix the problem...I def. think the cold air to fuel ration mixture has somehting to do with it but im not 100% sure. My truck is out of warentee now but i think im going to bring it to the stealership and have the computer re-flashed...after putting it back to stock from my edge tune of coarse...hopefully after the re-flash, my edge will still hook up and work no problem....ug 90 bucks for someone to plug a connector in my truck and wait around for it to get warm....

 

I have not had the problem now in a month or so since I replaced the fuel filter and reflashed my Diablo tuner in it but it has been some what cold here in florida so waiting for it to get warmer and see what happens.

 

happening to me now too. Temps outside between 30-65 degrees.

 

Ugh. Mine did this once of twice last summer, and has done it a few times in the last week now that it has warmed up. Typically when warm, shutoff for a few minutes to get gas. How annoying.

I am wondering what will change if I remove my custom tune, return it to stock and then have it re-flashed. Is the strategy code going to be different for my tunes? Will re-installing custom tunes over-ride whatever change is present in the re-flash?

 

Add me to the list... Glad I came across this.. I'll likely spring for the PCM flash right before getting my intake/exhaust/programmer

 

I'm reviving this thread as it is the newest one that discusses a hard start situation that could be caused by leaking injectors or some other reason. Newer vehicles, and correct me if I'm wrong, have a starter disabler that keeps the starter from continuing to run after the engine starts if you are still turning the key. This is to keep people from letting the starter gear grind away at the ring gear or trying to start an engine that is already running.

If this feature thinks that the engine has started and disengages the starter before the engine has started, the injectors will begin to spray fuel into the cylinders and the next time you try and start the engine, you will experience the hydrolock situation that I have had. You can duplicate the problem by turning the key to start and before the engine starts, release the key. Then try and start the engine again for real and you'll get the hard start situation.

I just had a service done on my 06 and had them test the injectors and they found no problem with any of them leaking. They did an update to the computer and now I think the problem is worse. They said that if the computer update didn't work, the problem was probably with the throttle body. I'm not so sure but would welcome any other theories.
Karl

 

I gather from the lack of response that either everyone's truck has been fixed or that the problem is no longer important. As I stated, I might be full of it concerning my theory on the starter cut off feature but I know that I am not releasing the key before the engine starts. I might also add that when this happens, there is a strong smell of gasoline both from the engine compartment and the exhaust when the engine starts. Naturally the dealership cannot duplicate the problem - yet.

So, if everyone's problem was fixed, what was that fix? The reflashing of the computer didn't do it for me.
Karl

 

In case anyone is following this thread, I took my '06 into the dealer yesterday as the re-flash didn't do any good. Naturally the truck didn't act up for the service writer when I was there but today I got a call from the SW. He said that the tech managed to get the engine to misbehave on startup a couple of times and that I would get a call in a few hours to let me know what the outcome was.

A few hours later the SW called and said that the problem was determined to be carbon deposits on the pistons and that they "decarbed" them as much as possible and put some chemical treatment in the gas tank. I'm not sure how they knocked the carbon deposits off the pistons. Back in the 70's when I was a tech at Ford, we'd dribble a little water down the carburetor while revving the engine.

I'm actually thinking that this could very well have been the problem as when it would start "hard" there was a knock that could have been caused by higher than normal compression. I never noticed any pinging, even driving up a hill with my windows open but I guess anything is possible, especially since the '06 models weren't supposed to have the leaky injectors. When I picked the truck up the SW said to drive it around this weekend and see what happens. Maybe even "jump" on it a few times.

I started the engine twice today and it started the way it should so maybe they are on to something. And the best thing? It didn't cost me anything!
Karl

 

They probably used a BG or Motorvac machine to clean it out.

Apparently the gas you are using may be leaving something to be desired with its additive package - I'd recommend you toss a bottle of Techron in the tank at every oil change. The other option is switch over to Chevron or Texaco gas.

San Gabriel Valley - that's in SoCal, right? Bet you are using Costco or Arco gas........