Engine Buck/Misfire at Freeway Speeds on Ford Ranger

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.

RepairPal Verified
Average mileage: 133,766 (11,300–315,450)
Engines affected: 2.3L 4 Cylinder, 2.5L 4 Cylinder, 3.0L V6, 4.0L V6
11 model years affected: 1993, 1998, 1999, 2000, more2001, 2002, 2003, 2004, 2005, 2006, 2009
77 people reported this problem
40 people shared problem details
2000 Ford Ranger- 4.0L V6125,000
engine would buck & stutter as you would try to accelerate. so far there has not been anyone able to find the problem for me.
2000 Ford Ranger- 3.0L V698,000
cold start engine idles smooth. drive till warm ,shut off engine for about 5 min. restart,engine misses at idle. misses badly at 45 to 55 mph.smooths out at higher rpm.comes back in lower range of over drive. so far i have replaced plugs snd plug wires,ran injector cleaner. no codes or check engine light.fuel press. at 40 psi. still misses.
2001 Ford Ranger- 3.0L V6126,624
once you hit around 45 to 50 mph, the truck will shift into overdrive and the rpms will drop from 2500 to 1800...then you feel the truck start to buck or jump or miss..
2001 Ford Ranger- 2.3L 4 Cylinder110,000
Engine misfire or bucking on acceleration. Net fixed yet.
2000 Ford Ranger- 3.0L V6120,000
engine misses at 45 to50 mph engine feels like it is holding back when in passing gear
2003 Ford Ranger- 2.3L 4 Cylinder78,000
misses at driving speed (2000 R.P.M.) only . Idle good.
2000 Ford Ranger- 4.0L V6195,000
has a hard mis fire when getting up to the speed up to 70
2000 Ford Ranger- 3.0L V6106,000
truck bucks and cuts out when giving gas usually in 4th to overdrive. Also happened on a 2000 automatic at 200000 miles....
2003 Ford Ranger- 4.0L V6240,000
Bucking, misfiring, check engine light flashing, mechanic checked and no codes appear.
2003 Ford Ranger- 3.0L V682,000
have not had problem repaired yet. just looking at the cause. will check for repairs soon.
Truck sputtering when accelerating
2002 Ford Ranger- 2.3L 4 Cylinder200,000
Manual trans. Go 65-70 then all of a sudden bogs down to 45-50 and I need to go into 4th gear to accelerate.
2002 Ford Ranger- 4.0L V6144,600
Engine Buck/Misfire at Freeway Speeds
2002 Ford Ranger- 3.0L V646,000
merging onto freeway the truck has severe bucking when accelerating up to highway speeds. Then stops while cruising at steady speed. only happens under strong acceleration .(i.e. going up steep hill, merging onto highway )
1999 Ford Ranger- 4.0L V6122,000
My ranger does this bucking as we'll and sometimes at idle it runs very rough, no cel lights at all. I changed the wires plugs and fuel filter still runs terrible!
2000 Ford Ranger- 4.0L V6315,450
We have a misfire on #2 plug only. We have changed all the plugs and plug wires and still have the miss.
I was told that it was a problem with the Rev. Limiter switch during a passing speed more than 75 mph?
1998 Ford Ranger- 4.0L V6269,998
when I start my truck it starts right up. and then it dies because it idles really ruff. its been stuttering and kicking every time I press the gas. sometimes when I try to start my truck I have to keep on turning it over intell it turns on and then I have to rev it up to like 4 to 4500 rpm. intell it sounds like its good and it idle fine intell I put it in drive and then it just dies again. I need this problem fixed quick. I already replace sparkplugs, idle control vavle.
2000 Ford Ranger- 3.0L V6123,000
I have a 2000 ford ranger 3.0 flex fuel. The motor was just rebuilt. The engine runs rough. There are no CEL on. The motor misses while accelirateing but smooths out until it kicks into over drive and then it misses until I let off the gas. I did not replace the synchrozier but I did replace the cam position sensor. It has new plugs and wires on it.
1999 Ford Ranger- 3.0L V6148,000
Buck and jerks at 80 mph.
Related Items:
i have a 2005 4.0L v6 ford ranger. i have coolant leaking into my oil and have the milkshake ty...
after about 10 sec it runs fine. as long as i apply the gas slow it will not buck. if i am goin...
it started a few days ago. my truck keeps bucking so i tried putting lucas fuel injector cleaner in my gas tank and it still does it. i also changed the oil now my check engine light is on?
bucking surges at a stop. i have replaced mas and computer and truck still bucking and surges....
does not do it all the time if i step on gas hard truck takes off and runes ok. Check engine l...

Related Content