Hard Starting/Rough Idle 4.2l
I have a 1998 F150 4.2l and recently I have been having issues with it starting hard, having to pump the gas peddel about 5 times to get it to start up. After it starts the idle is very rough and stays that way. I have already changed out:
Spark Plug Wires
Both rubber elbows for the PCV
Cleaned the MAF
Not sure what to do next, check fuel pressure, check vacuum lines, check the intake gaskets? Does this sound like a fuel issue, or vacuum issue? I dont think its an ignition issue, just acts like it doesnt want to start until you pump the pedel, and once its running its rough, almost like a miss. I have only gotten the codes for a miss fire on cyclinder 3 and 6, and once a code for lean bank 1 or 2 I can't remember which.
Any help is greatly appreciated,