P2314 Dodge -

Question

ENGINE LIGHT WAS ON SO I TOOK IT TO AUTO ZONE AND THEY USED THEIR READER ON IT AND I GAVE ME 4 CODES. i HAVE A 6 CYL 3.7 ENGINE. hOW COULD I GET 4 BAD COILS AND STILL DRIVE MY TRUCK? IT FELT LIKE MAYBE I HAD ONLY ONE. THE LIGHT GOES OFF SOMETIMES AND THEN BACK ON. JUST NOW WHEN IT WAS IDELING IT STARTED TO FLASH OFF AND ON. THE 4 CODES ARE P2314,P2317,P2311,P2305

Answer 1

P2314 Ignition coil # 5 secondary circuit insufficient ionization

P2317 Ignition coil # 6 seconday circuit insufficient ionization

P2311Ignition coil # 4 seconday circuit insufficient ionization

P2305 Ignition coil # 2 secondary circuit insufficient ionization

You could be right it probably is just one coil, what happens on this is typical on V-6 engines is one coil fails it becomes progressive, unburnt combustion is expelled from exhaust some get recirculated back into the engine due to the EGR system which is supposed to be inert gas which is consumed cumbustion  Because this gas is not inert but is now capable of supporting combustion it affect the cylinder that take in the EGR gases. Clear the code, let it idle it should just code one misfire code, and replace that one coil. if the sparkplug are worn replace it also. Anytime there is a flashing CK ENG LT this is ignition related misfire, if the misfire was caused by a injector , the CK ENG LT will not flash , only a ignition related misfire will flash the CK ENG LT