Honda Civic Si 1999 Hatchback – The Ultimate DIY Owner’S Guide

Ah, the honda civic si 1999 hatchback. For many of us, it’s more than just a car; it’s a piece of automotive history, a symbol of accessible performance, and a canvas for endless customization. If you’re lucky enough to own one of these legendary EKs, you know the thrill of its high-revving B-series engine and the joy of its nimble handling. But owning a classic like this also comes with the responsibility of careful maintenance and smart upgrades.

You’ve come to the right place. At FatBoysOffroad, we understand the passion behind these machines. We know you want to keep your Si running strong, whether it’s for daily commutes, weekend spirited drives, or even a track day. This comprehensive honda civic si 1999 hatchback guide is designed to empower you, the DIY mechanic and enthusiast, with the knowledge and practical steps needed to maintain, troubleshoot, and even enhance your beloved Si.

In this article, we’ll dive deep into everything you need to know to keep your Si running strong for years to come. We’ll cover essential maintenance, tackle common problems, explore performance tips, and even touch on sustainable care. Get ready to give your 1999 Civic Si hatchback the love and attention it deserves.

The Enduring Appeal of the honda civic si 1999 hatchback

What makes the honda civic si 1999 hatchback such a coveted vehicle, even decades later? It’s a blend of factors that created a truly special package. From its iconic design to its legendary powertrain, the benefits of honda civic si 1999 hatchback ownership are clear to anyone who gets behind the wheel.

First off, the B16A2 engine is a masterpiece. This 1.6-liter, DOHC VTEC engine produces 160 horsepower at a screaming 7,600 RPM. It’s a joy to rev, delivering a distinct power surge when VTEC engages. The close-ratio 5-speed manual transmission perfectly complements the engine, keeping you in the power band.

Beyond the engine, the Si offers fantastic handling. Its lightweight chassis, independent double-wishbone suspension, and factory strut tower brace make it incredibly agile. It’s a car that feels connected to the road, providing excellent feedback and a genuinely engaging driving experience.

Finally, the 1999 Si’s practicality as a hatchback adds to its appeal. It offers decent cargo space for its size, making it a surprisingly versatile daily driver. Its reliability, when properly maintained, is also a huge draw, keeping ownership costs reasonable.

Essential Maintenance for Your honda civic si 1999 hatchback: A Care Guide

Keeping your honda civic si 1999 hatchback in top shape requires diligent maintenance. Think of it as a long-term investment in your car’s performance and longevity. This section provides a practical honda civic si 1999 hatchback care guide, outlining key tasks for any DIY enthusiast.

Routine Fluid Checks and Changes

Fluids are the lifeblood of your Si. Regular checks and timely changes prevent premature wear and ensure optimal performance.

Engine Oil: Check the oil level weekly. For the B16A2, a high-quality 5W-30 synthetic oil is recommended. Change the oil and filter every 3,000-5,000 miles, especially if you drive spiritedly.
Transmission Fluid: Use Honda’s MTF (Manual Transmission Fluid). Change it every 30,000 miles or every two years. This is crucial for smooth shifting.
Coolant: Inspect the coolant level in the reservoir and radiator regularly. Flush and replace the coolant every 2-3 years, using a Honda-approved long-life coolant.
Brake Fluid: Brake fluid is hygroscopic, meaning it absorbs moisture over time. Flush and replace it every 2-3 years. This helps prevent corrosion in the brake lines and ensures firm pedal feel.
Power Steering Fluid: Check the reservoir level. If it’s low or dirty, flush and replace it with Honda-specific power steering fluid.

Brake System Inspection and Service

Your Si is quick, so it needs to stop just as quickly. Regular brake maintenance is non-negotiable for safety.

Pad and Rotor Inspection: Visually inspect brake pads for wear and rotors for excessive scoring or warping every 10,000 miles. Replace pads when they’re down to 3mm-4mm thickness.
Caliper Maintenance: Ensure calipers slide freely. Lubricate caliper pins with high-temperature silicone grease during pad changes.
Bleeding Brakes: If you notice a spongy pedal, you might have air in the system. Bleed the brake lines starting from the wheel furthest from the master cylinder. You’ll need a friend for this or a vacuum bleeder.

Tire Care and Suspension Checks

The Si’s handling is a major selling point. Proper tire and suspension care maintains that characteristic.

Tire Pressure: Check tire pressure weekly, including the spare. Correct pressure improves handling, fuel economy, and tire life. Refer to the sticker on your driver’s side door jamb for recommended pressures.
Rotation and Balancing: Rotate your tires every 5,000-7,000 miles to promote even wear. Get them balanced if you notice vibrations.
Suspension Components: Look for torn CV boots, worn ball joints, or leaky shocks/struts during your oil changes. Address these promptly to prevent further damage and maintain handling.

Tackling Common Problems with the honda civic si 1999 hatchback

Even a legend like the honda civic si 1999 hatchback has its quirks and common issues as it ages. Knowing what to look for and how to address it can save you headaches and money. Here’s a rundown of common problems with honda civic si 1999 hatchback models.

VTEC Solenoid Leaks

One of the most common issues on B-series engines is a leaking VTEC solenoid. You might notice oil seeping down the back of the engine, particularly around the VTEC solenoid assembly.

The Fix: The fix is usually straightforward. Replace the VTEC solenoid gasket, the VTEC pressure switch o-ring, and the small screen filter gasket. These are inexpensive parts and a relatively easy DIY job with basic hand tools.

Distributor O-Ring Leaks

Another common oil leak point is the distributor o-ring. Oil can seep out from where the distributor mounts to the cylinder head.

The Fix: Replace the distributor o-ring. It’s a simple, inexpensive part and a quick repair. Just be careful not to overtighten the distributor bolts, as the housing can crack.

Rust Issues

Being an older car, rust can be a significant concern, especially in regions with harsh winters or coastal climates. Common rust spots include:

Rear wheel wells and quarter panels.
Rocker panels.
The frame rails underneath the car.

Prevention & Repair: Regular washing, especially after driving on salted roads, is key. For existing rust, assess the damage. Surface rust can often be treated and sealed. For structural rust, professional welding and repair might be necessary. Always address rust promptly to prevent it from spreading.

Catalytic Converter Theft

Unfortunately, older Hondas are prime targets for catalytic converter theft due to their accessible design and the precious metals inside. This is a sad reality but one to be aware of.

Prevention: Consider installing a catalytic converter shield or a rebar cage. Parking in well-lit, secure areas can also deter thieves.

Worn Suspension Components

Over two decades of driving can take a toll on suspension components. You might experience:

Clunking noises over bumps (worn bushings, ball joints).
Excessive body roll (worn sway bar end links).
A bouncy ride (worn shocks/struts).

The Fix: Inspect all bushings, ball joints, and tie rod ends. Replace any worn components. This is a great opportunity for an upgrade to aftermarket bushings or coilovers if you’re looking to enhance performance.

Unlocking Performance: Tips for Your honda civic si 1999 hatchback

The honda civic si 1999 hatchback is a fantastic platform for performance modifications. Whether you’re aiming for a bit more power, sharper handling, or just a more responsive feel, there are plenty of effective honda civic si 1999 hatchback tips and upgrades to consider. Remember, always prioritize safety and reliability.

Intake and Exhaust Upgrades

These are often the first modifications people make, and for good reason.

Cold Air Intake (CAI): A good CAI can help the B16 breathe better, potentially adding a few horsepower and improving throttle response. Look for reputable brands like AEM, Injen, or K&N.
Header and Exhaust System: Upgrading to a quality aftermarket header (4-2-1 design often works best for street cars) and a cat-back exhaust system can free up some power and give your Si a more aggressive exhaust note. Ensure your exhaust system is within local noise regulations.

Suspension and Handling Improvements

This is where the Si truly shines, and there’s a lot you can do to enhance its already great handling.

Coilovers or Springs/Shocks: A matched set of aftermarket springs and shocks, or a full coilover system, can significantly improve handling, reduce body roll, and allow for ride height adjustment. Brands like Tein, Eibach, and Koni are popular choices.
Sway Bars: Upgrading front and/or rear sway bars can further reduce body roll and fine-tune handling characteristics. A larger rear sway bar can help reduce understeer.
Bushings: Replacing old, worn rubber bushings with stiffer polyurethane alternatives (e.g., Energy Suspension) can tighten up the feel of the car, especially in the suspension and shifter.

Braking System Enhancements

More power and better handling demand better stopping power. Don’t overlook brake upgrades.

Performance Pads and Rotors: Upgrading to performance brake pads (e.g., Hawk HPS, EBC Yellowstuff) and slotted or drilled rotors can offer better bite and fade resistance.
Stainless Steel Brake Lines: These lines resist expansion under pressure better than rubber lines, leading to a firmer, more consistent brake pedal feel.

Engine Tuning and Management

For more significant power gains, especially after bolt-on modifications, engine tuning is essential.

ECU Tuning: An aftermarket ECU (e.g., Hondata S300) or a chipped factory ECU allows for custom tuning to optimize fuel delivery and ignition timing for your specific modifications. This is crucial for getting the most out of your engine safely. Always have your car tuned by a reputable professional.

Sustainable Ownership: Eco-Friendly Practices for Your Si

Owning a classic car like the honda civic si 1999 hatchback doesn’t mean you can’t be mindful of your environmental impact. Embracing sustainable honda civic si 1999 hatchback practices is good for the planet and can even save you money in the long run. Let’s look at some eco-friendly honda civic si 1999 hatchback tips.

Mindful Maintenance and Waste Disposal

Your DIY efforts can be green efforts too.

Proper Fluid Disposal: Never pour used engine oil, coolant, or other automotive fluids down the drain or into the ground. Most auto parts stores and local recycling centers accept used fluids for proper disposal.
Recycle Parts: When replacing parts like batteries, tires, or metal components, ensure they are sent to appropriate recycling facilities. Many shops will do this for you.
Choose Sustainable Products: When possible, opt for eco-friendly car cleaning products, low-VOC paints, or remanufactured parts which reduce the demand for new manufacturing.

Driving Habits for Better Efficiency

How you drive has a direct impact on fuel consumption and emissions.

Smooth Acceleration and Braking: Aggressive driving wastes fuel. Accelerate gently and anticipate stops to avoid harsh braking.
Maintain Proper Tire Pressure: Underinflated tires increase rolling resistance, leading to higher fuel consumption. Check your tire pressure regularly.
Avoid Excessive Idling: If you’re going to be stopped for more than a minute, it’s often more fuel-efficient to turn off your engine.

Long-Term Eco-Conscious Choices

Thinking about the bigger picture for your Si.

Keep it Well-Tuned: A properly tuned engine runs more efficiently and produces fewer emissions. Regular maintenance, including spark plug replacement and air filter checks, is key.
Consider Fuel Efficiency Mods: While performance mods can increase fuel consumption, some, like a well-designed cold air intake, can actually improve efficiency under normal driving conditions.
Extend its Life: The most sustainable thing you can do for any car is to keep it running for as long as possible. By meticulously maintaining your Si, you reduce the demand for new car manufacturing and the resources it consumes.

Frequently Asked Questions About honda civic si 1999 hatchback

What makes the 1999 Civic Si special compared to other Civic models?

The 1999 Civic Si hatchback (EM1 coupe in North America, but the EK9 Type R hatchback is often associated with this era) is special primarily due to its high-revving B16A2 DOHC VTEC engine, which offered significantly more power than standard Civic models. It also came with a sport-tuned suspension, 4-wheel disc brakes, and unique exterior styling cues, making it a true factory performance variant.

Is the 1999 Civic Si a reliable car?

Yes, the 1999 Civic Si is generally considered very reliable, typical of Hondas of that era. Its B-series engine is robust and, with proper maintenance, can last for hundreds of thousands of miles. Common issues are usually age-related, like oil leaks from gaskets and worn suspension components, rather than major mechanical failures.

What octane fuel should I use in my 1999 Civic Si?

The 1999 Honda Civic Si’s B16A2 engine is designed for premium unleaded gasoline, typically 91 octane or higher. Using lower octane fuel can lead to pre-ignition (knocking or pinging) and potentially damage the engine, especially under hard acceleration, as the ECU will retard timing to compensate.

Are parts still available for the 1999 Civic Si?

Yes, many parts are still readily available for the 1999 Civic Si. Common wear items and aftermarket performance parts are plentiful. While some specific Honda OEM parts might be discontinued, the robust aftermarket and shared components with other Civic models make sourcing parts relatively easy for most maintenance and repair needs.

How can I improve the fuel economy of my 1999 Civic Si?

You can improve your Si’s fuel economy by maintaining proper tire pressure, ensuring the engine is well-tuned (clean air filter, new spark plugs, proper oil), driving smoothly with gradual acceleration and braking, and avoiding excessive idling. Removing unnecessary weight from the car and ensuring your alignment is correct can also help.

Your Legendary Ride Awaits

The honda civic si 1999 hatchback is more than just a car; it’s a driving experience, a piece of history, and a testament to Honda’s engineering prowess. By following the tips and best practices outlined in this guide, you’re not just maintaining a vehicle; you’re preserving a legend.

Whether you’re tackling a VTEC solenoid gasket replacement, upgrading your suspension, or simply performing a routine oil change, remember to take your time, use the right tools, and prioritize safety. The satisfaction of doing it yourself and knowing your Si is running at its best is truly rewarding.

Your 1999 Si has many more miles of smiles to offer. Keep learning, keep wrenching, and keep enjoying that incredible VTEC kick. Stay safe and stay comfortable on the road, and we’ll see you out there!

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Thomas Corle

Founder & Automobile expert at FatBoysOffroad

Automobile expert and off-road enthusiast, sharing in-depth knowledge of vehicles, gear, and adventures. Helping readers make smart decisions and enjoy the thrill of off-roading safely and confidently.