Problem Description and Possible Solution
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.
Average mileage: 118,946 (11,200–289,800)
Engines affected: 3.0L V6, 3.0L V6 DOHC, 3.0L V6 SHO, 3.2L V6 SHO, 3.8L V6
16 model years affected: 1993
, more1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
145 people reported this problem
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.
the engine will buck or flutter for no reason. Car is crusing at 40 and will begin to skip and flutter a few times, then stop. No codes are being found. It also clucks or slams a bit when accelerating up a slight incline. This is random and no mechanic has been able to fix it. A warmer car seems to have it happen more often. Some days it will buck and jump 10 times, others, none at all. Has anyone fixed this????
engine cuts out, knocks and bucks around 40 to 60 miles per hr. problem not solved yet.
anyone have any advise?
Freeway Driving~ When I drive 65pmh the car bucks like it is trying to stall out. Very Frightening~
From 30-50 mph under slight acceleration or going up incline, car will chug or act like not getting fuel. Happens in 4th gear at about 2000-2200 rpm. Smoothes out if increase speed or accelerate harder.
Car runs sluggish and jerks from time to time when accelerating, check engine light stays on continuosly...
bucks for a second then fine again, somedays not at all. Its getting worse.
engine chugs at high speed when going into passing gear. worse when engine is warm
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.
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!
my 2002 Ford Taurus SE only 30,000 miles on it the problem is when I try to merge into traffic from 40 miles an hour up to 68 bucks and it almost dies what can I do about that
Ford Taurus X, vehicle chugs uphill, bucks.
feels jerky at 40 mph, recently informed the bird chirping noise is the synchronizer making itself known it needs to be replaced,
It usually happens when I try to speed up to get on to the freeway...or just trying to accelerate too fast instead of gradually....
At around 65 mph there is a shudder and what seems to be a misfire
frequently bucks, various speeds seems worse cruise control on at 70 mph, freeway start up slight slope not touching accelerator pedal, will buck several times then OK, occasionally at lower speeds, start slight acceleration and rarely really makes me think is going to totally quit., then smooths out and runs fine. Seems to be getting slowly worse
misfire on acceleration speeds and crusing highway speeds
Random bucking at various speeds