check engine

[Chinh P]

if yall remember my last post, my car started acting up. idle and dieing randomly in traffice (once a month)



so i changed out the sparkplug and wires. then the car really started to missfire, so i changed out the sparkplug wires again (different brand). . .now theres a louder ticking/pinging noise. Bad idle, dies if rpms drop.



the machanic said the valve prolly dropped.



anyways I got my xplorer checked out at autozone, and the machine said

p0304, p0305 ?

which meant that both cylinder 4 & 5 is missfiring, and code p0157 which said something like running rich caused in BANK 2 ?



i checked the firing setup and the wires are correct.

so now I'm thinking of changing the 2 sparkplugs in 4 & 5. . . but i highly doubt thats the cause -- and other solutions?



ya think Ford will charge an arm&leg for diagnois ? do yall know if FORD extended warrenty on 2000 Explorer XLT drive tran/engine?? i'm at 99172 miles haha.:huh:

 

[Kevin Palmer]

Running rich is a common code. In almost every case the problem has been this vacuum hose...



[Broken External Image]:



[Broken External Image]:

 

[Kevin Palmer]

This could cause a miss-fire depending on how bad the leak is. So for sure check it out before you go nuts on plugs and wires and what not..

 

[Chinh P]

THANK you for the picture too! haha I will check tomorrow ASAP, I hope the machanic didn't nick this to get extra mola.