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Engine Buck/Misfire at Freeway Speeds on Ford Taurus

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.

Problem Data
RepairPal Verified
Average mileage: 119,438 (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, 1994, 1995, 1998, more1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
148 people reported this problem
Comments
Viewing 1 - 20 of 51 comments
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...
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
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....
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