Clogged fuel filter, engine timing, spark plug fouled, fuel octane, even a loose nut behind the steering wheel can cause these issues.
CHECK THE FUEL PRESSURE, MAY NEED ELECTRIC FUEL PUMP REPLACED.
Check your vacuum lines this usually the cause for a surge in engine speed when idling or running.
level 50
a surge could be caused by anything from low fuel pressure to bad sensors. Check the computer codes to see if there is an issue that shows.
A 'surge' of Testosterone.
FUEL pressure, or possible egr valve malfunction.
A large vacuum leak can do that.
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It is on the passenger side of the radiater. The surge tank and cap are on the driver side
Ford
Ford's overseas division.
Surge is a noun (a surge) and a verb (to surge). It is not an adjective.