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Old 05-07-2013, 01:07 PM
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Fuel injector issue

Ok well I'm pretty sure I have a fuel injector problem that is causing my engine to run rough. I have checked everything and all checks out ok great my Ficm voltage fuel pressure everything. It happens when it's cold but also comes and goes when it's warmed up but not as often as cold. My question is there an easy way to know what injector is acting up? Doesn't throw codes or anything when it does act up just runs rough and smokes like a chimney? Any help would be appreciated

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Old 05-07-2013, 01:25 PM
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It should throw a code, if its bad enough.
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Old 05-07-2013, 01:37 PM
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Ya it must not be bad enough cause it doesn't throw a code at all... But it's enough to shake it pretty good when it happens... Lol its really wierd

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Old 05-07-2013, 01:46 PM
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The only way is to use a diagnostic tool or disconnect each injector to find the culprit. The latter method is a PITA due to all the wires and accesories in the way. Don't loose the harness clips or it will cost you dearly.
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Old 05-07-2013, 02:14 PM
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So the only way is taking it to ford? Lol wish I knew which one it was so I didn't have to take it to them
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Old 05-07-2013, 03:37 PM
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There is nothing wrong with a good shop giving you the diagnosis. But if you don't want to take it in, find, borrow or buy an autoenginuity with ford bundle. 3 tests an it is paid for.
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Old 05-07-2013, 03:46 PM
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I just dropped my truck off this afternoon at the dealership for a similar problem. I didn't find any codes when I check it with my autoenginuity with the ford bundle. The service manager said it might be a bad injector cup but he wasn't sure.
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Old 05-07-2013, 03:51 PM
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What are your trucks symptoms?

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Old 05-07-2013, 03:51 PM
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Damn this is a pain I'll probably have to take it in and have them try to find the problem.. I hope it's not something I can't do

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Old 05-07-2013, 03:55 PM
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Quote:
Originally Posted by Turk.919 View Post
What are your trucks symptoms?

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It runs ****ty and blows smoke almost like it's miss firing on a cylinder for for a while then it goes away and runs fine... It happens more on cold start ups more than anything... But it's very sporadic when it happens. Sometimes last for a while others it does it for a minute and stops. Tried injector cleaner changed oil changed the icp sensor still does it

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