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Long crank but star...
 
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Long crank but starter and battery been replaced

  

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Good afternoon everyone hope all is well. 2014 Jeep Grand Cherokee Laredo cheers to over 186,300 miles still going strong. It was last month I replaced the starter and battery due to a no crank or long crank but the long crank still persist on cold start after already been driven. Carbon buildup has been reduced due to use of high mileage fuel treatments and intake cleaner so what else could it be causing a long crank? It's been long cranking since 2016.


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What else? I would first look at the fuel delivery system - a clogged fuel filter, damaged fuel line, or worn fuel pump would make it take extra seconds to get a good flow of gas to the injectors, but wouldn't trigger a check engine code. 

 


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