Engine Buck/Misfire at Freeway Speeds on Ford Taurus

The engine may misfire and/or buck while driving at freeway speeds with no fault code stored in the powertrain control module (PCM). This can be caused by an intermittent fault with the camshaft synchronizer assembly. This condition can be diagnosed by monitoring knock sensor data as per Ford service bulletin #05-22-12. Replacement of the synchronizer assembly will be required to correct this concern.

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Average mileage: 114,161 (11,200–289,800)
Engines affected: 3.0L V6, 3.0L V6 DOHC
9 model years affected: 2000, 2001, 2002, 2003, more2004, 2005, 2006, 2008, 2010
58 people reported this problem
26 people shared problem details
2008 Ford Taurus86,000
the car will run smoothly then without notice it will chug a few times. This genrally happens at 55 to 70 MPH and when on an incline. It will sometimes happen at lower speeds but doea not seem to do it below 40 MPH.
37 people like thisFlag inappropiate
2002 Ford Taurus- 3.0L V6100,000
engine chugs at high speed when going into passing gear. worse when engine is warm
13 people like thisFlag inappropiate
2000 Ford Taurus- 3.0L V6 DOHC70,000
engine cuts out, knocks and bucks around 40 to 60 miles per hr. problem not solved yet. anyone have any advise?
8 people like thisFlag inappropiate
2008 Ford Taurus115,000
Chugging at 55 mph
6 people like thisFlag inappropiate
Engine misfires, bucks and jerks at highway speeds, particularly toward the end of long trips (2- 4 hour trips). Had camshaft replaced and it went away for about 3 months then returned!
6 people like thisFlag inappropiate
2002 Ford Taurus- 3.0L V668,475
feels jerky at 40 mph, recently informed the bird chirping noise is the synchronizer making itself known it needs to be replaced,
4 people like thisFlag inappropiate
2000 Ford Taurus- 3.0L V6 DOHC289,800
bucks for a second then fine again, somedays not at all. Its getting worse.
3 people like thisFlag inappropiate
2003 Ford Taurus- 3.0L V693,000
Freeway Driving~ When I drive 65pmh the car bucks like it is trying to stall out. Very Frightening~
2 people like thisFlag inappropiate
2008 Ford Taurus83,000
Ford Taurus X, vehicle chugs uphill, bucks.
2 people like thisFlag inappropiate
2003 Ford Taurus- 3.0L V633,000
not fixed yet
1 person likes thisFlag inappropiate
2008 Ford Taurus- 3.0L V6 DOHC130,000
Engine misses at freeway speeds. Some relief if car O/D shut off. Replaced all 6 coils, and problem went away for a bit. Started up again after about 300 miles. Most noticable on freeway, and when beginning up hills. If car shifts into lower gear, problem usually goes away.
2004 Ford Taurus- 3.0L V6 DOHC
My wife misjudged a turn and ran over a rock and split the oil pan what is involved in changing it
2008 Ford Taurus- 3.0L V690,000
Feels like my car lurches intermittently while driving. Only notice when driving over 30mph...usually in the 45-55mph range...especially up hill. Feels like when a vehicle is being towed and the slack in the tow rope is jerked. Started happening a few months ago and seems to be getting worse (more often...almost every drive now)...took to Ford today to replace fuel filter but was told it was in fuel tank so not a good option. Have an appt to bring back next week and mechanic take a look at it. Will definitely show them this thread. THANK YOU!!
2004 Ford Taurus- 3.0L V6189,000
Miss firing on freeway
2008 Ford Taurus85,602
2008 Taurus SEL bucks at most any speed. Will stall below 45 mph. Codes have been: P069B, P0179, P0171, P0174. I Have not repaired it at this time.
2006 Ford Taurus- 3.0L V6127,000
misfire on acceleration speeds and crusing highway speeds
2000 Ford Taurus- 3.0L V6120,000
R/R camshaft synchronizer and camshaft position sensor
2010 Ford Taurus80,000
Noticed this same issue somewhere around 80,000 or so on my SHO. Thanks for sharing the TSB. Ill get the dealer to check it out.
2004 Ford Taurus- 3.0L V6 DOHC107,000
My Taurus is a 2004 (built in Oct 2003), exhibiting same problem. No engine warning light comes on. 40 mph-70 mph, cruising, not under heavy load. Dealer diagnosed misfire on cylinder 1, suspected failing coil - replaced coil, seal and spark plug. Issue recurred the next day after I got the car back.
2006 Ford Taurus- 3.0L V611,600
my ford taurus bucks at freeway speeds. it started doing this about 3 days ago and has gotten progressively worse
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