Question:
My 1999 Ford Escort 4 Cyl 2.0 has suddenly started running very rough it seemed like spark plugs and wires but i changed those and it didnt help. check engine light came on and code read vehicle speed sensor. would that cause these symptoms? Already Tried: Spark plugs and wires. air filter. my gas mileage has slowly dropped with this problem
Answer:
If the engine id running rough at idle, I would recommend replacing the coil assembly as this is a common issue with the Escorts.
If it idles fine and only seem to run rough(shift at abnormal points) then Yes, it is being caused by the vss sensor.
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