I have a 91' F-150 the idle on it was running high, about 2000, all the time. Turned out to be a plenum gasket. Gets some B12 caberator cleaner. Spray it around the intake manifold, the engine will speed up if it finds a air leak.


1995 Montero SR
SuperWinch Hubs, 31x10.5 BFG A/T'S