I have an 03 ford e150 van with a v6 at first i was getting codes for air and fuel mixture as well as misfire codes so i changed the mass airflow it helped only for a bit still misfires so a month later i get the smae code back ifigure maybe the plastic intaker plenums might have a leak well i dissambled found nothing used new gaskets now im just getting the misfire codes its calling for cyl no 1 and 5 so i pulled out number 5 it was wet and blackened oh and the plugs were changed a month ago as well so i noticed a sizeable amount of water or spent fuel??coming from the tailpipe doesnt smell like gas but its not losing any water or overheating so im lost please help
Hi, you will need to do a compression check on all cylinders, compare results, IF this is ok, check spark plug cap, lead, rotor arm, distributor cap.
You say plug was "wet & blackened", was that fuel (plug not firing) or oil ( oil getting up past rings into bore )
The latter is expensive. (strip/re bore etc. etc.)
SOURCE: 1998 ford explorer 4 5 6 cyl. misfire
Hi:
A code P0304 - 305 or 306 may mean that one or more of the following has happened:
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
Possible Solutions:
If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.
If there are symptoms such as the engine is stumbling or hesitating,
check all wiring and connectors that lead to the cylinders (i.e. spark
plugs). Depending on how long the ignition components have been in the
car, it may be a good idea to replace them as part of your regular
maintenance schedule. I would suggest spark plugs, spark plug wires,
distributor cap, and rotor (if applicable). Otherwise, check the coils
(a.k.a. coil packs). In some cases, the catalytic converter has gone
bad. If you smell rotten eggs in the exhaust, your cat converter needs
to be replaced. I've also heard in other cases the problems were faulty
fuel injectors.
Hope this helps; also keep in mind that your feedback is important
and I`ll appreciate your time and consideration if you leave some
testimonial comment about this answer.
Thank you for using FixYa, have a nice day.
112 views
Usually answered in minutes!
1,2,3 right bank
4,5,6 left bank
how many miles?
×