1996 Ford Windstar Trouble Code P0304, P0305

1996 FORD WINDSTAR
151,000 MILES • 6 CYL • 2WD • AUTOMATIC
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ALEXJERGES
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Hi,
My 1996 Ford Windstar 3.8 V6 start pinging going up the hill and have rough gear changing when turing. I run OBDII and got code P0304, and week later both P0304 and P0305. car feels like has not much power at all (especially going up the hill). What should I do? Thank you
May 2, 2008 at 4:27 PM
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RASMATAZ
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Misfires at cylinder 4 and 5

If a misfire in a specific cylinder should lead you to check the spark plug, fuel injector and compression.

Misfires can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel.
May 2, 2008 at 4:37 PM