*help*!! No Spark On One Plug???????

[hmonghangturbo]

Hey guys i need help here, i think i'm not burning anything in one spark-plug. It seem to me when i took them out, that 3-out of the 4 has spark burns on them but the other single one is fresh of gas (no burn). Does it mean that my coil (ignition) pack; for the spark wires is dead??? PLEASE HELP ME BECAUSE THE CAR SOUND LIKE IT'S RUNNING ON 3-CYLINDER, ALSO (NON DRIVEABLE, DIES AFTER START).

*Let me know if i should buy new coil pack or not, also the spark plugs and wires are NEW.*

Sincerley, Francois

 

[DSMRevolution]

Buy a spark tester before you change or replace anything. You can buy those for probably under $5. It could also be a plug wire. Use a multimeter and measure resistance of the wires. Not sure their specs, but they should all be very close. The longer wires will have more resistance aka ohms.

 

[98TalonTSi]

Agreed with Revolution, get a voltmeter and make sure that each of the four plugs on the coil pack are the same. Get new spark plugs anyway and make sure they are gapped correctly. If the coil pack checks out ok and with the new plugs you're still getting problems, then it's got to be your wires.

Mike

 

[philipkrotch]

what they said.

 

[crankbender]

Our cars use a wasted spark method for ignition. It is impossible to have a spark on 3 cylinders and not the fourth unless there is a wiring problem.

That cylinder has to be making a connection some place or the matching plug will not have a circuit to spark either.