Question about 2004 Ford Ranger
My 04 Ranger has a 3.0 V6 and has a rough idle,I took it to ford and they did a EEc test and found a code P0306 .Relative compression test and found cylinders 4,5,&6 ower than bank one. Now they want me to replace both cylnder heads, This yruck has only 76000 miles. I can't beleive this is not a faulty part. Anyone else having this problem?
I would check your crankshaft positing sensor this may be bad. I would also change your spark plugs and wires becuase they may have got water in them causing a short between them and the head. I would very carefully use air to clean the dirt from your engine compartment first. Autozone runs a free code check for you and this will tell you your problem. To clear your codes and to make the check engine light go off take off your battery cables and wait 30 minutes. You may also have a bad coil which will cause a misfire as well and a 306 error means a misfire to your 6th cylinder so it's probaly this. I hope this information helps.
Posted on May 20, 2009
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Posted on Jan 02, 2017
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