Hello Experts,
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Change the fuel filter again,and maybe twice more,the contaminated fuel,most likely had particles in the fuel also.Do this,and try lucas fuel treatment,with the red bottles of heet,two bottles of heet,remember the red bottles of heet.The red,is for diesels.This combination,I sell at the parts store for these kind of problems.People seem to think it works great,and we run out of the products from time to time.If this does not seem to do the trick,after you have changed the fuel filters,and got to where you need fuel,and refuel,then the injectors,and or the fuel pump,may need replacing to correct the problem.Let me know what you do,and let us know if my information was helpful,in any way,thank you,I am still here if you need me.