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Performance Upgrades - Maintenance - Modifications - Problem Solving - Off-Road - Street Trucks. Covering the Explorer, ST, Sport, Lincoln Aviator, Sport Trac, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Aerostar. Featuring H.I. - Human Intelligence.
I own a 99 sport 4.0 L SOHC. In temperatures below 60 degrees the engine will tend to surge when first started. The colder the weather the worse the problem. In temps below 40 degrees the engine will surge, stumble and stall. Only after repeated starts and after it warms up will this problem go...