Parts for your 1990 Mitsubishi Pajero-Ignition leads

Maintaining and Replacing Ignition Leads on Your 1990 Mitsubishi Pajero

Your trusty 1990 Mitsubishi Pajero is a workhorse that has been around for a while. As a part of keeping it running smoothly, it's important to inspect and maintain different components of the vehicle. Among those essential parts are the ignition leads, which are crucial for starting your engine efficiently.

Ignition leads, also known as spark plug wires, are responsible for transferring the voltage from the ignition coil to the spark plugs, which ignites the fuel in the combustion chamber. Given their importance, ensuring their optimal functionality is integral for the performance and reliability of your Pajero.

Here's a simple guide to understanding when and how to replace your ignition leads:

1. Recognising the Signs of Worn Ignition Leads
   • Engine Misfires: If you notice your engine is misfiring or idling roughly, it might be due to worn ignition leads.
   • Visible Damage: Inspect the leads for any visible cracks, wear, or tears in the insulation, which can cause arcing and a loss of electrical flow.
   • Reduced Fuel Economy: Damaged ignition leads can lead to inefficient combustion, which in turn affects your vehicle's fuel consumption.
   • Difficulty Starting: Faulty ignition leads can make it harder for your engine to start, especially in cold weather or damp conditions.
2. The Replacement Process
   • Gather Your Tools: You'll need a set of new ignition leads, a wrench, and some dielectric grease.
   • Work Methodically: Always replace ignition leads one at a time. This reduces the risk of mixing up the connections, which could confuse your firing order.
   • Remove Old Leads: Carefully disconnect a lead from the spark plug and the distributor or ignition coil.
   • Install New Leads: Connect the new lead to the correct terminals, ensuring a tight, secure fit. Apply a small amount of dielectric grease to each connection to protect against moisture.
3. Regular Maintenance Tips
   • Inspect Regularly: Check your ignition leads at every major service. Look for any signs of wear or damage.
   • Keep Them Clean: Ensure your leads stay clean and free from oil or debris, which can shorten their lifespan.
   • Follow Manufacturer's Guidelines: Replace your ignition leads as recommended by Mitsubishi, typically every 30,000 to 50,000 kilometres or if any issues become apparent.

Regular maintenance of your Pajero's ignition system will ensure your ride remains smooth and reliable. While replacing ignition leads might initially seem daunting, with some patience and attention to detail, it's a manageable task that offers gratifying results in terms of vehicle performance.