2003 Mercury Sable Q&A
2003 Mercury Sable Question: engine light is now on. AC does not work!
changed plugs, vacuums, hoses. no leaks. plenum re-fitted. engine light came on after two days of stop light engine surge 200 rpm then down ...two seconds later does it again. AC went out by noon and it one year old! i know the computor figured lean because of possible plenum leak! now engine light still on and AC is not working! - docdeano199
you poss have other leaks also,have codes read and get a smoke test done to see where thy are. could also be injectors, mass air flow, egror fuel pressure. these are diff to diag at times. a/c may be a diff issue unless cool air is coming out of def vents, if so that could be vac related also - globalhelper