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2005 Ford Expedition Question: Check engine light came on with noticeable what I believe is fuel injector tick

 

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cglcchristensen92, Potwin, KS, March 15, 2014, 21:37
 Rookie

Also note slight hesitation/miss on acceleration on mild incline.

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  • Answer #1

    March 16, 2014, 00:24
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     Journeyman

    If you believe the fuel injector is bad you can unplug one connector at a time from each injector. If there is a change in the idle or it runs worse/rough the injector you unplugged is a good injector. Plug each injector back in after checking it. If you have a bad injector the engine will not change idle when unplugged. Of coarse the engine must be on when checking these.

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  • Medium-star Best Answer
    March 16, 2014, 00:58
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     Master

    Scan test is needed to find out why the light is on first thing! Save all the guess work.

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