The check engine light flashes on and off when the engine is experiencing the misfire. One or more misfire codes (P0300-P0306) will be stored in your Ford's PCM memory. P0300 Random Cylinder Misfire. P0301 Cylinder #1 Misfire. P0302 Cylinder #2 Misfire. P0303 Cylinder #3 Misfire. P0304 Cylinder #4 Misfire. Year, Model & Trim Level. 2005 Lincoln Aviator. February 1, 2014. #2. Ford PCM won't throw a code for misfire until it gets really bad. Start with checking vacuum leaks. I had a lot of trouble with rough idle and finally got it pretty well fixed but it took a while. See this thread. I honestly don't think Seafoam or any similar product can do 2007 Ford Explorer Review: A Bad Year Buyers Should Avoid With Expensive Mechanical Problems. The 2007 Ford Explorer lasts around 150,000 to 200,000 miles transmission and engine issues. At $5,315 to $6,731 it’s cheap, but not worth it with the high ownership costs. The first vehicles to receive this engine were the Ford Explorer and Mercury Mountaineer; years later, they began production for vehicles like the Ford Ranger, Courier, Mustang, Mazda B4000, and Land Rover LR3. A rebuilt 4.0-long block that uses the bare minimum of quality parts can end up causing problems down the road. Hose to/from the Heater Core. There are two hoses coming to and from the heater core. They both should feel warm or hot to the touch with the engine on. If one of the hoses is hot, and the other one is cold, that is a pretty good indication that the heater core is clogged. If the neither hose has any heat, you may have air in the cooling system i am working on a 2010 ford explorer 4.0 and codes po403 and po443 keeps coming up. we put on a new egr valve assembly and still after driving a few blocks the light comes back on. we ran tests on fuses # 42 and 43 and found no problem with voltage. ron summers, summers auto repair The problem is that the engine is not getting enough fuel. The fuel pump is the part of your Ford Explorer which controls the supply of fuel to the engine. If the fuel supplied to the engine is less, the combustion process will not occur efficiently. Consequently, the engine will not generate enough power for your Ford Explorer to start or move. 4’th Cylinder. P0304 is a cylinder-specific misfire code, meaning only your Explorer’s fourth cylinder has a misfire. Before you can even diagnose P0304 in your vehicle, you need to find the fourth cylinder’s location. On “V” configuration engines, it’ll usually be the second cylinder on the head further away from the front of the Vay Tiền Cấp Tốc Online Cmnd.

ford explorer 4.0 engine problems