Question about Ford Explorer Sport

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I have a 02 ford explorer 4x4 it starts fine and runs good but idles rough at times

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  • cnbinc2 May 11, 2009

    I changed the air filter and added fuel injector cleaner but still idles rough.I have been told that it is burning lean and I also checked the egr valve

  • cnbinc2 May 11, 2009

    dave944 my 02 ford explorer is a V6 4.0

  • cnbinc2 May 11, 2009

    my 02 ford explorer misses when idling it will take gas in gear but when reving it up in park or neutral it will choke itself out

  • cnbinc2 May 11, 2009

    where is the fuel filter located at on a 2002 ford explorer sport

  • Dave  C
    Dave C May 11, 2010

    You may have a PCV hose that has deteriorated and is leaking vacuum, a very common problem on these vehicles. Which engine is it?

  • Dave  C
    Dave C May 11, 2010

    There is a very common problem with the PCV hose underneath the intake plenum behind the throttle body, I will bet money that this is your problem. Which engine do you have?



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There could be many things that can cause that. You many need just a simple tune up, such as new spark plugs, and wire set. The injector's may be getting dirty and the fuel filter may be at the end of it's life and needs to be changed.
If your going to tune it up your self, get the computer scanned at Auto Zone and see if there are any DTC codes that my be causing the problem. They scan for free and can give you the step by step instructions to any parts your going to replace such as the fuel filter and spark plugs.
For now if you like, try add fuel injector cleaner to your gas every time you fill up the gas tank to try to clean up the injectors. if things improve then just add it to the gas tank once a month. You can buy them at most gas stations but i find then to be cheaper at a parts store like Auto Zone or you can get them at Wal-Mart in multi packs to save you more money.
Good luck and hope this helps, a little preventive maintenance save a lot more then the repair at a later date. 

Posted on May 11, 2009


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Hi i have a 95 explorer and it will idle fine for awhile then it starts idling rough but if i hit the gas a few times alittle hard it will idle good again but after a minute it will idle rough again p

Check over your work--- you put the problem in it

Did you not make a diagram of the wires before you
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Have to also know the firing order before you start
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