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Discussion Starter · #1 ·
Truck has 100k miles on it, and was running fine when parked last evening. This morning on start up, had a very rough idle which smoothed out a bit. However, when the accelerator is pressed it runs rough again, and eventually will only muster about 1500 RPMs and produces some whitish-blue smoke.

Is this just a fuel filter issue, or do I have a bigger problem?
 

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First thing is check coolant, if its low at all don't run it, it could be an egr cooler leak which will destroy your engine. Could be alot of things (hpcv, injector, fuel supply, egr etc..) but make sure thats not the problem first.
 

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Discussion Starter · #4 ·
Just heard back from the Ford dealer..... EGR Valve shows bad... $544 out the door... Could have been much worse, so I'll take that for now.
 
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