[Bronco2]

Run the truck a few minites-remove the plastic cover from the middle of the intake-remove the valve under the cover {2 torx screws} use a flashlite and check for liquid fuel in the plenum. If you see puddles,it probably indicates a leaking pressure regulator or fuel line in the plenum. As far as I know these are dealer items-app. 600 bucks. They are fairly easy to replace.-Remember to change the engine oil-oil and filter are cheaper than bearings.Hope this helps.