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Its important not to cross the wires in the plug if they are exposed,damage to your E.C.M.is possible.Make sure you unhook the batt. before changing anything electrical to avoid computer damage and have codes avaliable for your radio.A auto parts store willnot carry this plug,you will need to contact a auto recycling yard or salvage yard to get this plug.If you you find one ask if you can have the plug with 6-in of wire so you can either splice the wires together or try pulling each individual wire out of your old plug and put them into the new plug.Mark all wires and where they go.Write on paper.( a diagram of the wires)which wire goes where and what the color code of each wire is.Hope this helps.
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2 things come to mind, 1st is the wire harness on those years becomes brittle and the insulation comes apart on the individual wires and causes shorts within the harness. other thought is try and perform a compression test, especially if it has ever been overheated and could have a warped head/gasket leak.
change your spark plugs one at a time and make sure to gap them you can get a gaping tool at a auto parts store the plugs do already come pregapped but its always a good idea to check the gap before installing. you almost never have to replace the coil packs unless there is a problem with them.
Hello there: if you have replaced the coil pac you may want to remove it again and make sure there is no moisture or corrosion then if and still have nothing check the crank sensor and the ignition module i just replaced mine after several weeks of troubleshooting and now it is fine and finally and hopefully this is not your problem is the ecu or electronic controle unit this is the first line of the ignition system and the most important it tells the coil pac to fire and tells which one to fire and when this can have part of it be bad and still have other coil pacs to fire ok
Drain all the oil and put on new clean, also repl the oil filter.
Your coil pack may also still be wet-- , mark your spark plug wires and the coils and remove them. Make sure the coils are dry the spark pulg wires ends are dry. Also the plug or the main harness to the coil pac may be wet still, pull the plug and dry that, use an old hair drier or just let it sit a day longer.
if the other coils are functioning, then voltage to the coil pack is ok. removing the spark plug wire from the suspected bad coil with no change in engine performance is a reliable procedure to check for a bad coil.
The plugs are probably under the coil packs, You will see a series of wiring harnesses with 3 or 4 wires in each connector that plug into a square or rectangular piece that is usually bolted down to the center of the valve cover(s). You have to remove these and the plugs are under them. Be gentle with the harness conectors and take your time as the underhood temps tend to make them brittle
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