Question about 2003 Ford Explorer Sport Trac
Just had it smogged, passed. No check engine light. Runs fine at speed. It doesn't die. Replaced the IAC, PCV valve and PCV hose.
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Posted on Jan 02, 2017
the pcv is located on the rear(firewall) of the drivers side valve cover.turn counterclockwise and pull to remove be careful there are 2 small tabs inside the pcv hole in the valve cover(can feel with small finger) this is to hold valve in place so it wont leak.if you have a oil leak at the pcv a quick fix is to put a small amount of silicone around the pcv o-ring and install.wait hours for silicone to set up.
Posted on Oct 21, 2008
Check and see if the EGR valve is leaking, to check this spray water on it at idle, if the water steams off the valve is leaking and is the source of your problem, also are you sure you hooked the new DPFE sensor up right? re-check it..
Posted on Nov 23, 2008
Both appear to be a lean mixture problem according to my research. Have you run some injector cleaner through it by any chance? What about coolant level, is it staying up, pressure tested, just in case coolant is mixing with fuel via, head or intake gasket leak, and leaning out the mixture. Low fuel pressure will cause lean mixture in some cases, test it or at least change filter if not done recently, or both. Hope that helps.
Posted on Dec 12, 2008
Look For A 3/8 th's Vacuum Hose Coming from The Base of Throtle Body Fallow it to the 2 Line PCV At Valve cover
Posted on Feb 10, 2009
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