Acura CL Distributor Cap Guide for 1997-1999 Models
If your Acura CL is misfiring or running rough, the distributor cap could be the culprit.
- A bad distributor cap on a 1997-1999 Acura CL commonly causes misfires, rough idle, and starting issues.
- This is a simple DIY replacement; the most critical step is transferring spark plug wires in the correct order.
- Always replace the distributor rotor at the same time as the cap for a complete repair.
- High-quality aftermarket caps with brass contacts offer excellent performance and value for this vehicle.
Is a Failing Distributor Cap Common on the 1997-1999 Acura CL?
For older vehicles like the first-generation Acura CL, the distributor cap and rotor are regular maintenance items that wear out over time. They operate in a high-voltage, high-heat environment, which causes the plastic and internal metal contacts to degrade. Forum discussions among Acura owners show that symptoms like misfiring, especially between 2,000-3,000 RPM, often lead them to inspect and replace the cap and rotor as a first step in troubleshooting. While not a defect, it is a common replacement item needed to keep the engine running smoothly.
Symptoms of a Bad Distributor Cap on Your Acura CL
A failing distributor cap can cause several noticeable engine problems. Because the cap is responsible for directing spark, any issues with it can directly impact engine performance. Here are the most common signs:
- Engine Misfires: The engine may sputter or hesitate, especially under acceleration. This can feel like a jerking or stumbling sensation while driving. Some owners report this is most noticeable in a specific RPM range.
- Rough Idle: Your car may shake or vibrate more than usual when stopped or idling.
- Check Engine Light: A misfire caused by a bad distributor cap can trigger the Check Engine Light. Codes related to engine misfires (like P0300, P0301, P0302, etc.) may be stored in the computer.
- Difficulty Starting: The engine might take longer than usual to start, or it may crank but not turn over at all.
- Stalling: In more severe cases, the engine may stall while you are driving.
Aftermarket vs. OEM Distributor Caps
For a vehicle like the 1997-1999 Acura CL, high-quality aftermarket distributor caps offer excellent value and performance that can meet or exceed original specifications. OEM (Original Equipment Manufacturer) parts are a reliable choice but often come at a higher price. Aftermarket brands like Standard Ignition and Walker Products produce parts designed to be direct replacements. The key difference often lies in the materials, such as brass versus aluminum contacts. Brass is generally considered a superior material for conductivity and corrosion resistance. When shopping, look for caps made from high-dielectric materials to resist heat and prevent voltage leaks.
Choosing the Right Aftermarket Brand
When selecting an aftermarket distributor cap, quality matters more than brand name alone. Both Standard Ignition and Walker Products are established names in the aftermarket industry.
- Standard Ignition (SMP): Often considered a premium aftermarket brand, they produce a wide range of ignition components. Their parts are generally well-regarded for their fit and durability.
- Walker Products: Walker also emphasizes meeting or exceeding OE quality with features like high-dielectric materials and precision contacts for consistent voltage.
Pro Tip: It is highly recommended to replace the distributor rotor at the same time as the cap. These two parts wear out together. Many aftermarket kits include both the cap and rotor.
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Distributor Cap | $23.00 - $33.56 |
| New OEM Distributor Cap | $45 - $60 |
| Shop Labor Cost | $49 - $72 |
| Total Professional Replacement (Aftermarket Part) | $72 - $106 |
| Total Professional Replacement (OEM Part) | $94 - $132 |
Frequently Asked Questions (FAQ)
Is replacing the distributor cap a difficult DIY job?
No, this is a relatively easy job for most DIY mechanics. It typically requires basic hand tools like a Phillips screwdriver or an 8mm wrench. The most important step is to transfer the spark plug wires from the old cap to the new one in the exact same order to maintain the correct firing sequence. Labeling the wires before you begin is a great way to avoid mistakes.
Should I replace the spark plug wires at the same time?
It's a good idea to inspect your spark plug wires when you replace the cap. If they are old, cracked, or show signs of wear, replacing them at the same time is smart preventative maintenance. Worn wires can cause symptoms similar to a bad cap.
What is the difference between aluminum and brass terminals?
Distributor caps come with either aluminum or brass terminals (the metal contacts inside). Brass is a better conductor of electricity and is more resistant to corrosion than aluminum. For long-term performance, a cap with brass terminals is generally the better choice.
What if I replace the cap and rotor but still have a misfire?
If a new cap and rotor don't solve your misfire, the problem could be elsewhere in the ignition or fuel system. Other common causes include bad spark plugs, faulty spark plug wires, a weak ignition coil, clogged fuel injectors, or a clogged EGR system, which is a known issue on some Acura/Honda engines.
Technical Specifications
The distributor cap for the 1997-1999 Acura CL is specific to the 2.2L 4-cylinder and 3.0L V6 engines. Ensure you purchase the correct cap for your engine type. The cap is typically made of a high-dielectric thermoplastic polymer with either aluminum or brass internal contacts.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Acura CL: