stonerboys
Member
- Joined
- November 14, 2010
- Messages
- 25
- Reaction score
- 0
- City, State
- Pennsylvania
- Year, Model & Trim Level
- 99 Sport
hey guys, I revived my old 99 sport a few months ago because I was in a bind and needed a vehicle. After it had been sitting for almost 3 years because of a bad tranny, I scarfed up a used one for $100 , and put it back on the road. This was back in June. It was occasionally started and let ran for minutes at a time for the timeframe that it sat. After putting a new motorcraft fuel filter, coil, plug wires (all from rockauto), and 6 new Autolite platinum plugs in it it was running good. The check engine light has been on for a few years but it always ran fine...until a few days ago. If you let it sit for a few hours, upon startup it idles erratically and smells like raw gas and has a miss. At first it was only doing it upon startup and had an occasional miss while driving, so I went and took it to auto zone, had them pull the codes and they said MAF sensor. So I changed it, seemed to run real good for a day or two. Now coming home from work this morning it was missing the whole way home and had little to no power. I’m assuming the smell of fuel is from an incomplete burn. Maybe try changing the plugs because they had to burn off 3 years worth of junk from it sitting and are possibly fouled from a dirty maf sensor? The plugs I took out before putting in the above mentioned autolites had no electrodes left on them at all. Going to go and try checking the codes again tomorrow but the other day I think it was an evap canister code and O2 sensors ( I changed both upstream ones already and codes are still there)? I know it needs some exhaust work too but it’s just a beater so I really don’t care just want it running full power again. Any thoughts or ideas/input guys?? Kinda leaning towards plugs since it happens under a load-while it’s driving and revs just fine and seems to have almost full power in park. Explorer is a 99 sport with the 4.0 OHV, 159k miles