Lincoln Mark LT Ignition Coil
When the Spark is Gone: Troubleshooting Your Lincoln Mark LT Ignition Coil
The ignition coil creates the spark that gets your Lincoln Mark LT going. So if you're having a difficult time getting your engine running, then you probably have a bad ignition coil under your hood. This so-called spark generator generally lasts long, but it will also break down over time. After several years of use, its internal windings may wear out and fail to deliver the necessary spark to the plugs. If your LT's refusing to start or stalling frequently, then it's time to pop your hood open and do some troubleshooting to determine the cause of the problem. Here's a quick troubleshooting guide to help you out:
An engine that misfires frequently or cuts out temporarily as you drive over uneven terrain and hit bumps on the road is one of the most common symptoms of a faulty ignition coil. This intermittent surge of power from the engine could also mean loose coil wire connections, causing the ignition coil to function poorly. To determine the cause of intermittent power, check the wires if they're still connected properly to the ground and battery. The negative wire should be connected to the ground, while the positive wire should be hooked up to the battery. Ensure these wires are connected tightly to their respective connection points to prevent engine misfires. If tightening the loose connections doesn't do the trick, then take out the faulty ignition coil and replace it with a new unit.
Significant decrease in gas mileage
A bad ignition coil won't have the capacity to deliver sufficient power to your spark plugs, resulting in a significant drop in fuel mileage. If the spark plugs are not receiving enough power, your LT will need more fuel to continue functioning properly. To prevent poor fuel economy, test the resistance of your old ignition coil using an ohmmeter or a digital multimeter. Consult your LT's repair manual for the resistance specifications of your ignition coil and compare the readings from the multimeter with the specs in your manual. If the specs and readings match, then there's no problem with your ignition coil. If you don't get optimum resistance from the terminals, then it's time for you to get a new Lincoln Mark LT ignition coil.