2003 Ford Expedition intermittent engine/ignition failures
I drive approx 5-7 miles city driving each day, and from one to three times each day, usually when accelerating from a stop, the engine cuts out(stops) for around a half second or so, then it's running again completely normal. Three of those times in the last few weeks it died, but started back up without hesitation. When the half-second events occur there's no indication of a problem in the dashboard display, and there are no error codes showing in the computer. When it happens it's not a miss or a sputter like when an engine's running badly, it's an abrupt shutdown like an ignition problem. I've already eliminated an ignition key problem, it still happens using my spare key.
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electrical is the weakest link-you may have a computer with issues and before replacin a reprogram should be considered--what did vehicle scan tell you? Data recorders are often placed in cars that show no codes--Older cars can have solenoids and components that heat up and stop engine--if theres a distributer cap-inspec for corrosion
There is no cap and rotor, as the vehicles igntion system is DIS (digital ignition system). The recommended tune-up on these motors require sparkplug and coil replacement. The coil type in this vehicle is COPs (coil over plugs). Usually moist and oxidation develope on the sparkplug chamber walls from faulty or worn coil boots. This causes the coil to short, they must be replaced at 75,000 miles at the same time the sparkplugs are replaced. Typical symtoms are: Vehicle stalls (restarts and runs normal), intermitted jerks/sputter while driving, misfires, rough idle, severe power loss. Hopefully this helps
when you travel over 65 mhr for long lenghts of time you don,t work the engine enough to move the fluid to lubricate the engine also when you go on long trips make sure the oil life is still gonna be good for the hole trip
Sounds like an electrical issue maybe the plug from firewall to cab is loose or on computer is loose, sometimes those coonections or pins get loose,i had a new car with 200 miles on it and it went dead in heavy traffic,had to get towed to dealer they found loose connection!!!!With audible noise when happens tells me its wiring,check all connections and wires to connections make sure there not loose!!!Best of Luck to you!!!!!
when you have a dead battery and jump start you half to drive the vehicle for 10 to20 miles to allow the altinator to recharge the battery. if this dont work then i would have the altinator checked to see if it is charging ,your local auto parts store will do this for free