I just replaced my OEM battery (6 years old) with a 850cca battery. Now when I drive the truck dies after coming to a stop sign. It doesn't completely shut off every time it just drops back down to idle at times and then its fine, until the next stop sign. If I let it idle for a few minutes it will shut off by itself. Any idea what I can do to fix it. We tested the battery and it's fully charged so I know the battery isn't the problem. A friend of mine is having the exact same problem. We both have 2004 FX4's.

 

One of two things happened. One you knocked off a vacuum hose some where when replacing it. Recheck everything, hoses, wires, connectors, and make sure there is nothing hanging loose.

Or keep driving and see if it gets better. The computer could be trying to relearn but this should not take very long and if it has died more than two or three times then that is probably NOT it.

The Vacuum line is my best guess though.

 

I took it to a Ford dealer and they said to just keep driving it and it will "work itself out" I don't know that I'm buying that though. It's hard for me to believe that Ford would design something that would shut off while driving. Any other suggestions?

 

Fuel filter or alternator

 

The battery and the shutting off sound unrelated. I would try all the standard maintenance stuff like replacing fuel filter, clean air filter and especially cleaning the throttle body. I had my truck shut off on me while driving two years ago. Symptoms leading up to this were a stumble while idling. I took a rag that was wet (but not soaked) with WD-40 and cleaned inside the TB including the butterfly valve. I was shocked at how much gunk had built up. When clean, I put the air cleaner assembly back together and it not only fixed my idle, the truck hasn't experienced the issue since. In fact, it's probably time for another cleaning. This next go around, I want to remove the TB and clean it on the bench...

Good luck and post back what you find.

 

If you replace the battery the kams are cleared as well as idle stradegy. What you need to do is either unhook the battery and wait at least 2 minutes or unhook the pcm(all 3 connectors)this is instant. Then make sure when you hook back up everything is turned off a/c radio anything that would create a draw. What happens is pcm controls the alternator if these things are on when you start the pcm cant adjust idle afterwards leading to a low idle and dying concern. Try this should fix the problme

 

It isn't the alternator or fuel filter. Just replaced the fuel filter less than 1000 miles ago and we checked the alternator. The engine doesn't sputter it just shuts off (it's not a fuel problem). It's definitely electrical, something with the PCM. Would getting it reflashed work? I'll try the unhooking the battery for 2 min and see if that works for now.

 

How many times have you driven it since you replaced the battery?

 

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.

DEALER CODING
BASIC PART NO. CONDITION CODE
recalem 04

--------------------------------------------------------------------------------

Copyright © 2008 Ford Motor Company

 

Thanks everyone. I unhooked the battery for two minutes and hooked it back up. Everything seems to be working great now. My idle does seem lower than it should, along with some hesitation as mentioned in the above post. I'll have to see what I can do about that.

 

I had the exact thing happen to me. F150 2006 4.6- I cleaned the throttle body and now truck is not dying when coming to a stop. I removed the 4 bolts, two wiring hookups 1 on the left and one on the right. I removed the air hose that was covering the throttle body. Really simple. I have limited mechanical skills, as you can tell by the post. Used a throttle body cleaner and a tooth brush and a rag. I also replaced the gasket. All in all cost me 15 dollars.