Question about 2003 Ford Expedition
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Posted on Jan 02, 2017
SOURCE: 2003 ford expedition
P0300 Random/Multiple Cylinder Misfire Detected
See all 300-series codes here: http://www.ford-trucks.com/article/idx/7/241/article/Ford_OBDII_Diagnostic_Trouble_Codes__P0300P0399__Ignition_System_or_Misfire.html
Posted on Dec 23, 2008
SOURCE: truck hesitates & stalls
Check for leaking valve cover gaskets,next to the spark plugs, putting oil near the ign coils. You absolutely have to scan the veh for codes and look at all the sensor values etc. Including putting an oscilloscope on all sensors. The Throttle Position Sensor is a possible and I could go on. Now,do not throw parts at it. Never replace anything just because of a code that is set. Codes do not mean a bad part, just an out of range sensor etc over a number of drive cycles. You have to spend lots of time and if you do not have the up to date knowledge on todays veh systems your done before you start. Don't mean to be hurtful but very few people can solve these issues including half the auto repair industry because there is no training for the most part and no one understands basic electricity or electronics. Todays vehicle are not just mechanical alone as back in the 1960's
Posted on Feb 06, 2010
the passanger side
4 ------------------ 8
3 -------------------- 7
2 ------------------- 6
1 -------------------- 5
front of engine
Posted on May 08, 2010
on my 2003 eddie bauer edition, the valve is on the passenger side valve cover about mid way. Mine had what looked to be three hoses attatched to it, but with further inspection two of the hoses turned out to be connected and just looped around the valve with a keeper clamp.
Posted on Jan 24, 2011
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