I recently purchased a 1998 Ford Contour with a 4-cylinder, VCT (Variable Cam Timing) 16-valve engine. The vehicle has approximately 88,000 miles and is currently displaying fault code P1383. The car runs roughly, especially at idle, with noticeable surging. I understand that P138
On Ford vehicles, P1383 typically indicates a slipping timing belt due to age and wear—especially when the vehicle has exceeded its recommended service interval. However, it can also point to a faulty VCT (Variable Cam Timing) system. Possible causes include: a stuck open solenoid in the VCT unit, low oil pressure, or binding in the camshaft advance mechanism. These issues should be diagnosed and repaired promptly before further engine damage occurs.
I'd recommend checking the timing belt first—especially since it's past its recommended replacement interval. If the belt is worn or loose, it could be slipping, which would trigger P1383. Additionally, Ford dealerships may have technical service bulletins (TSBs) related to VCT systems in this model year that you should review.