Wednesday, December 27th, 2006 AT 6:51 PM
1994 Ford Ranger 2.3lt 4cyl engine. 137000 miles. The plugs, coil and wires have been replace but two of the plugs still will not fire. This ford truck has two coils and 8 spark plugs total. The number 1 and 4 on the right side of the engine will not fire.