You may not see your distributor cap as one of your ride's important components, but it plays a very crucial role in your engine's performance. If this part becomes defective, the ignition sequence inside the engine will be disrupted. You'll notice excessive shaking, difficulty in starting, and high-pitched squealing noise. You'll also experience stalling and backfiring as well as turning over when the engine is cold. If you observe one or some of these signs, you'd better look for a new distributor cap and have your damaged component replaced.
Here are some dos and don'ts to bear in mind when purchasing a new catalytic converter:
- Do find out the kind of distributor cap that's compatible with your vehicle's ignition system. Much like other auto components, a good fit ensures superior performance.
- Do choose a distributor cap with high-quality construction to be sure that moisture and grime are held at bay. This will significantly extend the service life of the distributor and other ignition and engine parts.
- Do prefer a distributor cap that fits your driving requirements. If your ignition system is set up for racing or high-performance street use, purchase a cap that can deliver more than or even twice the dielectric strength of your stock cap.
- Do check the distributor cap's warranty. It must come with at least 90-day or 3,000-mile warranty. Go for a unit that offers better coverage without additional cost.
- Don't buy a remanufactured distributor cap without checking the materials it is made of. A cap that's made out of substandard materials may not be able to deliver high performance and long service life.
- Don't compromise quality for price. Bear in mind that in purchasing auto parts, you get what you pay for. So if you want superior quality, you must be willing to shell out a few more bucks for it.
- Don't invest much on the distributor cap's appearance. The market now carries distributor caps designed to add a distinct look to your engine compartment. If they cost more than a high-quality yet plain-looking cap, that additional price won't be worth it except if you always show off your engine to your friends.
The distributor cap doesn't call for frequent replacement, though there are drivers who change it every time they have their spark plugs changed. It is wise to have your distributor cap replaced once in every two years or every 15,000 miles.