2003 Lincoln Aviator Q&A
2003 Lincoln Aviator Question: PO316 MISFIRE CODE???
i HAVE BEEN GETTING THE PO316 CODE FOR THE LAST 3 MONTHS. I HAVE FOUND 7 OTHER LINCOLN AVIATOR OWNERS EXPERIENCING THE SAME PROBLEM. BETWEEN THE RANGE OF 40-60 THE TRUCK STUTTERS, STAULS AND RUNS EXTREMELY ROUGH. WE ALL HAVE LAREADY CHANGED THE COILS, COIL PACKS, SPARK PLUGS, FUEL FILTER, THROTTLE SENSOR, CAM SENSOR, CRANK SENSOR AND ARE LEFT WITH THE SAME PROBLEM. I HAVE ALSO HAD 3 LOCAL MECHANIC SHOPS RUN 1 HOUR DIAGNOSTICS ON THE TRUCK AS WELL AS A PERSONAL MECHANIC AND THE PO316 MISFIRE CODE IS VERY VAGUE. IF ANYONE HAS A RESOLUTION TO THIS PROBLEM PLEASE LET ME KNOW. THANK YOU LISA FRUSTRATED OWNER - Legend1030
it is a missfire detected at 1000 rpm or under on start up. could be carbon on the valves, faulty injector or a possible compression issue. i know you have been to 3 shops but it sounds like nobody has tracked it down for you. you need someone who is very familiar with ford issues to help you out, possibly a dealer. Roy - mastertech6371
It takes three things to light it off: Spark, fuel and compression. There are two TSBs for misfires relating to compression/leakdown tests and then the coils. Was a compression and leakdown test performed? Your injectors may be dirty as well. Typical misfires are from Faulty spark plug or wire Faulty coil (pack) Faulty oxygen sensor(s) Faulty fuel injector Burned exhaust valve Faulty catalytic converter(s) Running out of fuel Poor compression Defective computer You could call Adrian at Milt's. I just talked to him and he didn't know I told you we would look at your vehicle for free. He'll give you the frist hour and discount additional time if he needs to do a compression/leakdown. Good luck. - Hal...
Was there any other code in the ECM together with the P0316? Usually there is another cylinder specific misfire code, like P030X?? I'd check fuel pressure and compression among the MAF sensor. The Ford dealer should replaced the ignition coils for free if you have less than 120,000 miles, since they extended the warranty due to failing coils. Are the new coils OE from Ford or aftermarket? There are many bad quality coils out there which are failing the coil stress test right out of the box. Could you tell us also what kind of spark plugs are installed? Did you get the spark plug boots replaced also (they are between the coils and the spark plugs)?? Failing or dirty fuel injector can also cause misfire. Zee - ZeeTech
Gonna throw a wrench into the works here -- have an alternator ripple test done. Sometimes the alternator has been known to throw out some RF interference to the processor, causing the misfire, the P0316 code, etc. You can chase coils and plugs and such all day long, and in the end have an alternator issue... Been there. - DaveJHM
SO. I'll answer my own question. I got back from my road trip and hooked up my code reader and here they are the codes! P0208...injector wiring fault P0308...cylinder 8 misfire P0300...multiple cylinder misfire P0316...misfire shortly after start up Seeing that there was an injector fault, I tweaked the injectors 5-8 (known problem area on this engine)kind of twisting them and unplugging and replugging the connectors. Also moved cylinder 8 coil to 1 to see if the misfire would come back and guess what? It did not! The rough driving and stuttering at 40-60 MPH is GONE! SOMEONE HAS TO ANSWER THIS SINCE THE ORIGINAL IDIOT POSTER DID NOT COME BACK TO POST A SOLUTION!!! So now I'm back to square one trying to find a solution to the infamous rough idle with no error codes problem that I have been trying to hunt down since the beginning. This was the reason I put all new coils and plugs to begin with. I also have a noise under the truck that I always thought to be a bad catalytic converter. I took it to a muffler shop and they told me it was not the cats. They brought me over and I heard it myself. The noise is not coming from the catalytic converters but rather sounds like it might possibly be a bearing on the flywheel. The noise goes away with a little acceleration. Ah well. Hope this helps someone out. - losangeles350
it means it needs a new camshaft and that the enginechain broke - angeldedios
Do you know what these codes mean ?
Originally I had a code "misfire #7". I had blown a spark plug on cyl #3 3 months earlier. I replaced all of the plugs and when replacing the coils and injectors I moved the injectors right and the...