Question about 2002 Ford Ranger Regular Cab

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2002 ford ranger 4.0v6. fuel economy loss, rough idling, surges, loss of power. will replacing the EGR valve help this?

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  • john631068
    john631068 May 11, 2010

    Sounds like the mass air sensor is bad are there any codes or check engine light on /.....

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Burnt valve problems. Get header work performed.

Posted on Apr 08, 2010

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Two codes came up on my scanner the egr valve and the O2 sensor i replace those two sensors and it stil does the same. rough idle, poor fuel economy and loss of power. They told me that it could be leaking...


pull you egr valve off and get some brake parts cleaner or carb or throttle body cleaner and clean your valvue also start the car with the valvue off and give it a little gas so you can blow all the stuff out of it then put it back on and erase the codes then drive and see if the check engine light comes back on

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Get a full tune up, how is your gas millage? if your gas millage is bad then you should suggest changing your o2 sensors.

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Engine seems to have power surges at all rpms and idles a little rough


Sounds like the EGR valve, but may be fuel filter has water in it, I would change fuel fiter if that dont help go to the egr or vacume hoses around the egr.

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does car have engine codes? sounds like your idle air controle valve is sticking. or possible egr problem

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Sounds more like an EGR valve and sensor. EGR Valve and sensor control idle.

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About a month or so ago my engine light came on showing an egr code. I didnt worry too much about it and then one day last week it started idling rough and badly sputtering going down the road. I am...


The most common problem is a clogged EGR valve. In any case, you should take it to a mechanic who has the tools to diagnose it further, because 1/2 a dozen things can cause rough idle in a 10 year-old Windstar.

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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..

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