Hi new here, HELP! My sons truck (my old one) has has been running very rough lately. (Random rapid missfire)I have spent over $1,000 on it and its seen one mechanic also. I started out with complete ignition system, wires, plugs, cap and rotor with no luck. Took it to a mechanic, he replaced CSFI spider unit and truck ran fine for 2 weeks then started acting same again. Took it back to mechanic and he said fuel pump pressure was low and check valve imediatly bleeding off, I replaced pump, truck ran good for 1 minute then started missing again bad. I replaced fuel filter then truck would barley start and now wont hardly run. Falls on face when giving gas and dies. I only replaced pump not whole unit. Could it be bad ground from pump and does this truck have pump regulator and wheres it located? The cat converters are hollow (cleaned out also)
have the same problem?
Saturday, July 31st, 2010 AT 8:32 AM