How many ignition coils does a Jeep Wrangler have?
There are two sets of windings inside each ignition coil. The primary windings have hundreds of turns of heavy wire, while the secondary side contains thousands of turns of fine wire. Power supplied by the battery flows through the primary windings.
How many ignition coils does a jeep have?
A bad coil pack can cause the engine to misfire. The coil pack has three separate ignition coils bundled into one unit and you must replace the entire unit if one of the coils is faulty. You can test the coil pack in your Jeep Grand Cherokee by measuring the electrical resistance of the coil pack with an ohmmeter.
Where is the coil pack on a jeep?
The coil pack is located on the left side of the engine, bolted onto the cylinder head. It connects directly to the engine spark plugs. Work the coil pack back and forth until you free it from the spark plug slots.
Can a bad coil pack cause a jeep to misfire?
Often called a distributorless ignition system, the Jeep L6 engine employs coil packs. Bad coil packs can cause engine misfires, lack of power and faulty starting — much the same as bad distributors. If you suspect that you have a faulty coil pack, you can remove it and test it with an ohmmeter.
How does a coil pack ignition system work?
Some vehicle ignition systems use coil packs to convert the power from the 12-volt battery in your car to the necessary 35,000 volts required to fire spark plugs instead of a distributor and rotor assembly. Often called a distributorless ignition system, the Jeep L6 engine employs coil packs.
What should the ohmmeter be on a jeep coil pack?
The ohmmeter rating should fall between 6,000 and 30,000 ohms. If the ohmmeter rating is above or below this range, replace the coil pack. Change the ohmmeter setting to 10 ohms. Hold one lead in your left hand and one lead in your right hand.