My truck is misfiring, I replaced 4 of the 6 spark plugs, the old plugs were Platinum and the new ones are double Platinum. The reason I only replaced 4 is because it was getting too dark. I will do the other 2 tomorrow.
2004 Frontier SuperCharged.
Other info 2004 Supercharged frontier,|||chances are that if you didn%26#039;t have the mis fire before you started then you must recheck your work. a way to find which cylinder is misfiring would be to pull each wire off one at a time while the engine is running and when the misfire go%26#039;s away then that cylinder is the one with the misfire. remember to use a rubber coated pliers so you dont get jolted. also be carefull to not damage the spark plug wires . it is possible that you packed some debris on one of the spark plugs during installation since you were working in the dark. it is also possible that you cracked a spark plug insulator upon tightening the plug and last if the misfire is consistant then it is possible that you put a wire on the wrong . hope this helps|||One time I was changing my plugs and didn%26#039;t notice but when when installing one of the plugs i barely chipped the ceramic and it caused mine to misfire. It doesn%26#039;t take much I was being very careful. Not saying that%26#039;s your problem. Your problem is probably the fact that the new plugs are igniting a lot more than the old two and causing problems, install the others and you should be fine IMO.|||Done the wires too? It may be one of the two you haven%26#039;t changed as well.
Could be the ignition coils, could be a faulty sensor, could be a tetchy computer.
Could be lots of things, I%26#039;d suggest you finish the plugs and wires and go from there.|||Make sure you got the wires on the right plugs and that they are tight, if that%26#039;s OK then you cracked one of the plugs putting them in.|||i think u have wrongly connected the coil wires to spark plug..try looking where u have gone wrong or get a mechanic He ll fix it in a minute..|||You crossed plug wires you put them on the wrong plugs. Get a flash light. lol
