how to tell
 

Hi,
how do i tell if any of my spark plugs are fauled or are not useable?

Truck is 88 f150 351w auto 2wd

I just replaced them a week ago or so but still cant get this truck to start..
so fari have replaced
plugs
wires
rotor
cap
today i will be putting on a new coil and fuel filter hope this does it lol...
if it dont i may just shoot this thing hehehehehehehe
Thanks for all the help!
James

You can pull your spark plug and connect it to the wire and have someone crank the engine while holding the end of the spark plug grounded to something metal on the engine. Hold the insulated part and stay insulated or this is a shocking experience.

What happened previous to you not being able to start the truck?

Check the basics, like do you have spark? fuel?

hi well i changed the plugs ,wires, cap and rotor and now have changed the feul filter... just doing genral stuff as had no idea when it was done last due to i have only had this truck a few months ... waiting for the battery to charge back up so i can see if it will start now... i will post more info soon!
thanks for all the help!!
James