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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 was going thro the same thing its ur intake gaskets i got a ohv labor pretty though got it done in about 4 hrs but if u got a sohc itl be much easier ohv gasket kit cost bout 35bucks for sohc gasket kit cost bout 20 good luck
howling noise coming from under the hood realy annoying seems to get a lil better if i turn off and on the a.c but some time it jus turns off on me wtf anybody know what going on!
im going thro the same thing right now its not o2 sensors. po171 po 174 are your intake gaskets! replace them and do you spark plugs while your down there....good luck!