Nov 2, 2003 at 4:54 PM
just replaced both headgaskets on a 92 Aerostar 3.0 and got it running but it misses terrible. #3 cylinder is dead as can be and #2,#5,#6 cylinders don't seem to be strong at idle(pulling each wire off the plug while running) but at 1000rpm or higher they do make a differance, except #3. Engine fires right up and revs. looked for the obvious vaccum leaks but didn't find any, check engine light is not on. Valves don't appear to be adjustable, right? Any ideas??????? Going to pull a compression check tommorow and scan the computer. 