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Jaguar XJ6 Ignition Coil

Diagnosing Jaguar XJ6 Ignition Coil Faults

The ignition coil of your Jaguar XJ6 is the part that breathes, or rather, sparks life into your vehicle. At some point, problems do arise in the form of starting problems and fuel usage being too much. To prevent the worst from happening, here are a couple of troubleshooting tips to help you figure out what is wrong with your ignition coil before it is too late.

Problems regarding fuel economy

One of the first signs of ignition coil trouble actually comes from the gas tank. Notice if you have been using way too much gas than usual. If you do, then immediately check if your ignition coil is still working. If the heating and cooling process of your ignition coil is too rapid, what could happen is that the part would slowly warp itself into a different shape. This would then lead to internal damage, causing the whole thing to stop working. Another area to check is the spark plug. See if the gapping is still small. Excessive gaps from the spark plug would lead to a lot more energy and charge given to the ignition coil, wasting fuel. If not that, then the charge might not be enough to fully start the car and it will run weak.

Stalling or misfiring engine

Speaking of weak ignitions, another common sign of an ignition coil going bad is when your vehicle is either struggling just to sputter into life, or when it doesn't even want to work at all. If you know that the engine is working fine, then it is very likely the ignition coil to blame. If you want to be certain, the first thing you got to do is check whether the ignition coils are held correctly or not. Sometimes, starting problems come from the part being loosely installed, thus potentially arcing over itself, which could result in damage. If you see this, then just a simple readjustment should do the trick. An additional way to be really sure is by using a voltometer to measure the resistance being made. It should read around .70 to 1.7 ohms. Anything higher or lower than that translates to a faulty ignition coil, and it must be replaced.

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  • A Simple Jaguar XJ6 Ignition Coil Maintenance Guide

    The Jaguar XJ6 ignition coil is small part amongst all the car parts, yet it is one of the most important roles. It ensures that your vehicle is going to have just the right amount of power for it to start. However, environmental debris, physical damage, as well the good ol' wear and tear, will slowly break the part down. In you want to make sure that your ignition coil survives as long as possible, then maintenance must be made. Here are a few tips to help you along the way:


    Clean ignition coil regularly.

    Always check for any signs of corrosion, dirt, or even rust. If you see any of these, it is best to clean those immediately, lest the part might get too clogged up. If this happens, the power will not be able to flow properly and ignition will either stutter or misfire. The best way to clean the ignition coil is by buying electrical contact cleaner and electrical contact grease, then using them to remove any harmful materials. Remember to wipe the part very carefully and thoroughly after cleaning.


    Align ignition coil back to normal.

    Many ignition coil problems could simply be attributed to the part being loose. You could try to check how much grip it still has by wiggling it around a bit. If the free play is too much, then it is time to adjust it. The best way to do this is by taking the part out first, then reinstalling it. Make sure that this time, the ignition coil is fitted perfectly.


    Inspect ignition coil of signs of damage.

    A dent, crack, or any other form of physical damage done to the ignition coil is a sure sign of warning to your vehicle. Any harm like this done to the part could greatly hamper the flow of current going between the ignition coil and the starter. Usually, small degrees of damage could still be fixed. However, a higher-than-average level of mechanics is required; else you might end up just breaking the whole thing. If you feel confident enough, then go ahead. Otherwise, it is recommended that you get a replacement part instead.