HOW CAN U TELL IF YOU BLEW A SPARK PLUG?

I just changed my spark plugs and wires and like 3 months later it feels like I have a misfire... and I wanna know which plug it is so I won't have to buy a whole new stHOW CAN U TELL IF YOU BLEW A SPARK PLUG?
Check the firing order first as you may have put the wires back wrong . This is a common mistake. Then pull the plugs out to see if any are black or corroded. After that maybe it is the fuel mixture or bad wires.

Good Luck!HOW CAN U TELL IF YOU BLEW A SPARK PLUG?
Get your self a pair of rubber handled pliers or spark plug lead pliers, then with the engine runing, remove one lead at a time until you find that removing a lead will not change the idle. The one that doesn't change the idle will be the plug with an issue. Check the gap and check the ceramics to see if it's cracked.HOW CAN U TELL IF YOU BLEW A SPARK PLUG?
You get out the obd2 scanner and see if there are any misfire codes. Still if you didn't use di-electric grease on the wires this is probably causing your problem.HOW CAN U TELL IF YOU BLEW A SPARK PLUG?
the car wont start...durHOW CAN U TELL IF YOU BLEW A SPARK PLUG?
Go buy one and change it from cylinder to cylinder till the problem stops. DONE!



(hope it's not more than 1 that's causing the problem! I'd just change them all again, spark plugs are not that expensive)HOW CAN U TELL IF YOU BLEW A SPARK PLUG?
Disconnect the fuel line. Either pull the fuse or disable the system you don't want it to fire up when you do this. Pull one plug at a time and turn the car over like your starting it.Look for a spark at each plug. Good luck