Diesel engine "miss"???
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New User
Joined: Sep 2007
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Diesel engine "miss"???
05 PSD, Auto. 78k miles. 4" exhaust, otherwise stock. All dealer maintained, all services done on or before time, injectors cleaned every 15k. Use for business, always pulling 7k+ trailer.
Only exhibits under heavy load (9k or more on trailer).
The engine seems to "miss" under light throttle. I would say that a spark plug wire was loose, if it was a gasser. At first, it felt like the trailer was bucking, it's not a light miss. The tech went for a ride, and witnessed the problem firsthand.The tech cannot find any codes, gave me a black box recorder, I got 4 good instances for review. The dealership cannot find anything from the data collector, sent to Ford engineering for review. Ford advised that there isn't anything showing up either.
Craziest thing.
Has anyone heard of a similar instance?
Only exhibits under heavy load (9k or more on trailer).
The engine seems to "miss" under light throttle. I would say that a spark plug wire was loose, if it was a gasser. At first, it felt like the trailer was bucking, it's not a light miss. The tech went for a ride, and witnessed the problem firsthand.The tech cannot find any codes, gave me a black box recorder, I got 4 good instances for review. The dealership cannot find anything from the data collector, sent to Ford engineering for review. Ford advised that there isn't anything showing up either.
Craziest thing.
Has anyone heard of a similar instance?
Elder User
Joined: Jan 2004
Posts: 853
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From: northern,california
2005-2006 F-Super Duty
This article supersedes TSB 06-3-11 to update the vehicle model years.
ISSUE:
Some 2005-2006 F-Super Duty vehicles equipped with a 6.0L engine may exhibit a buck/jerk condition in Low (L), first (1st), or second (2nd) in manual transmission vehicles, or in manual 1st, manual 2nd, or in tow-haul mode in first (1st) or second (2nd) on automatic transmission vehicles. This concern occurs anywhere from 1800-2500 RPM at steady throttle or slight tip in. Concern will be more evident under a load, or while pulling a trailer. This concern is more noticeable in manual transmission equipped vehicles.
ACTION:
Reprogram the powertrain control module (PCM) to the latest calibration using WDS release B41.11 and higher or B42.1 and higher. This new calibration is not included in the B42 CD. Calibration files may also be obtained at MOTORCRAFT PARTS FOR FORD, LINCOLN OR MERCURY VEHICLES.
WARRANTY STATUS:
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage
OPERATION DESCRIPTION TIME
060511A 2005-2006 F-Super Duty 6.0L: Check For Diagnostic Trouble Codes And Reprogram The Powertrain Control Module (Do Not Use With 12650D, 12650D84) 0.7 Hr.
DEALER CODING
BASIC PART NO. CONDITION CODE
RECALEM 04
Does this sound like the problem?
This article supersedes TSB 06-3-11 to update the vehicle model years.
ISSUE:
Some 2005-2006 F-Super Duty vehicles equipped with a 6.0L engine may exhibit a buck/jerk condition in Low (L), first (1st), or second (2nd) in manual transmission vehicles, or in manual 1st, manual 2nd, or in tow-haul mode in first (1st) or second (2nd) on automatic transmission vehicles. This concern occurs anywhere from 1800-2500 RPM at steady throttle or slight tip in. Concern will be more evident under a load, or while pulling a trailer. This concern is more noticeable in manual transmission equipped vehicles.
ACTION:
Reprogram the powertrain control module (PCM) to the latest calibration using WDS release B41.11 and higher or B42.1 and higher. This new calibration is not included in the B42 CD. Calibration files may also be obtained at MOTORCRAFT PARTS FOR FORD, LINCOLN OR MERCURY VEHICLES.
WARRANTY STATUS:
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage
OPERATION DESCRIPTION TIME
060511A 2005-2006 F-Super Duty 6.0L: Check For Diagnostic Trouble Codes And Reprogram The Powertrain Control Module (Do Not Use With 12650D, 12650D84) 0.7 Hr.
DEALER CODING
BASIC PART NO. CONDITION CODE
RECALEM 04
Does this sound like the problem?
Thread Starter
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New User
Joined: Sep 2007
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Sorry, I omitted the part about this only happening in top gear, if the trans downshifts into 4th, the issue is gone. The tow/haul is always on.
I thought it may be a torque converter lockup issue. The dealer disagrees, hey what do I know? If I knew what was wrong, I'd have fixed it myself a while ago...
I thought it may be a torque converter lockup issue. The dealer disagrees, hey what do I know? If I knew what was wrong, I'd have fixed it myself a while ago...
