bad misfire and stall

[mrjordan]

2005 expedition throws codes p0355 p0356 p0357 changed coils and new battery need help plez. thank yaw in advance

 

[mhg1]

Need more info. Mileage, when were the plugs last changed.
Give a general overview of the truck. Any mods.
Just because the codes say coil pack failed does not mean bad coils.

 

[mrjordan]

ok sorry. has 168,000 miles dont know when plugs were last changed and gotts mod is the only mod done other than that she's factory

 

[Expd830]

After the plugs were changed, if you did do the plugs what codes is it throwing?