Engine Buck/Misfire at Freeway Speeds on Ford Ranger
Problem overview
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.
283 people reported this problem
95 commentsFord Ranger vehicles with this problem
19 model years affected
Average mileage: 17,433,007 miles
(10,000 - 1,999,829,940)
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