Common 1999 Honda Accord EX problems

The most frequently reported 1999 Honda Accord EX issues include automatic transmission failures (especially on V6 models), EGR passage clogging that triggers check‑engine lights, EVAP system leaks (often code P1457), failing engine mounts, door lock actuator and window regulator failures, worn suspension bushings causing clunks and tire wear, and age‑related oil leaks and rust; high‑priority safety recalls cover Takata airbag inflators and a faulty ignition switch that can cause stalling. These patterns apply to both 4‑cylinder and V6 EX trims, though severity can differ by powertrain and maintenance history.

Powertrain and drivability

Powertrain complaints on sixth‑generation Accords (1998–2002) concentrate on the automatic transmission and emissions‑related systems. Age and mileage now amplify wear issues like mounts, seals, and vacuum components.

• Automatic transmission (AT) failure: Harsh/erratic shifts, slipping, shudder, delayed engagement, D4 light flashing, and eventual failure are widely reported, most often on V6 models but also on 4‑cylinders. Failures commonly occur between roughly 90,000–180,000 miles depending on use and maintenance. Fluid must be Honda ATF DW‑1 (or the superseded Z1 originally); using other fluids can worsen problems.
• Manual transmission and clutch hydraulics: The 5‑speed is generally durable; more common are clutch master/slave cylinder leaks leading to a soft pedal or difficulty shifting.
• EGR system clogging (P0401): Carbon buildup in EGR passages leads to reduced flow, rough idle, pinging under load, and a MIL. Cleaning the EGR valve and intake passages is the typical fix; some vehicles received updated parts or cleaning procedures via service bulletins.
• EVAP system leaks (P1457/P0441/P0442): The canister vent/shut valve and hoses near the charcoal canister often leak, especially in rust‑belt climates. A new valve or canister assembly and refreshed lines usually resolve it.
• Engine mounts: Hydraulic mounts collapse or crack with age, causing vibration at idle, clunks on acceleration/braking, and excessive drivetrain movement.
• Oil leaks and seals: Common sources include the valve cover gasket, cam/crank seals, and (on 4‑cyl F23) the balance shaft seal. Honda released a retainer kit for the balance shaft seal on affected 4‑cyl engines to prevent seal “pop‑out” and sudden oil loss.
• Idle/air control issues: A dirty or failing IACV and throttle body can cause unstable idle and stalling, especially when cold or after A/C engagement.
• Ignition/distributor components (4‑cyl): The distributor’s internal coil/igniter can fail intermittently, causing misfires or no‑start; heat and age are contributing factors.
• Timing belt and water pump: Both the 4‑cyl and V6 are interference engines; overdue belts risk catastrophic damage. Replacement interval is typically 105,000 miles or 7 years (whichever comes first), paired with the water pump, tensioner, and seals.

Together, these issues drive many of the warning lights and drivability complaints owners report today. A proper baseline service—ATF exchange, intake/EGR cleaning, and timing belt work—prevents a large share of them.

Safety recalls and high‑priority items

Two safety campaigns are especially important on the 1999 Accord EX, both with free dealer remedies. Owners should verify open recalls by checking their VIN at the NHTSA website or Honda’s recall portal.

• Takata airbag inflator recalls (driver and often passenger): Propellant degradation can cause inflator rupture in a crash, risking serious injury or death. Multiple recall waves began in 2014 and continued into subsequent years; these remain active for many vehicles.
• Ignition switch electrical failure: A faulty switch can cause engine stalling while driving or prevent starting. Honda recalled many 1997–1999 Accords to replace the switch.

Because recall scope can vary by build date and prior repairs, a VIN check is essential before driving, and scheduling airbag inflator replacements should be treated as urgent.

Electrical and interior

As these cars age past 25 years, interior electronics and switches show predictable wear patterns. Many are nuisance failures but can affect safety or convenience.

• Door lock actuators: Failed actuators cause intermittent locking/unlocking, rapid cycling, or no response.
• Window regulators and motors: Slow or stuck windows, especially on the driver’s side; regulators wear and cables fray.
• Instrument panel and HVAC backlighting: Burned‑out bulbs or cracked solder joints lead to dim or dead illumination.
• Sunroof switch/motor and drains: Inoperative roof or leaks from clogged drains can wet headliners and electronics.
• Alternator/ELD (Electric Load Detector) faults: Charging system warnings or fluctuating voltage may trace to a tired alternator or the ELD in the under‑hood fuse box. Code P1298 is associated with ELD failure.
• Ignition lock cylinder wear: The key may be hard to turn or get stuck; replacement lock cylinders and properly cut keys resolve it.

Most of these issues are repairable with readily available parts; preventing water intrusion and using OE‑quality electrical components improves longevity.

Chassis, steering, and brakes

Suspension rubber and hydraulic components degrade with time, contributing to noise, vibration, and erratic tire wear.

• Front lower control arm compliance bushings: Cracking/tearing causes clunks over bumps and instability under braking.
• Rear tire inner‑edge wear: Factory camber/alignment plus bushing wear often leads to rapid inner tire wear; rear camber/toe correction kits are common fixes.
• Wheel bearings: Growling/humming that changes with speed and steering input indicates bearing wear, common on high‑mileage cars.
• Power steering leaks: Hoses, pump, and rack seals seep with age, causing low fluid, noise, or assist loss.
• ABS warning light: Often traced to wheel speed sensors or, less commonly, the ABS modulator. Corrosion and damaged harnesses are typical causes.
• Brake caliper slide pin corrosion: Sticking pins cause uneven pad wear and pulsation; periodic service prevents repeat issues.

Addressing worn bushings and ensuring proper alignment notably improves ride quality and tire life on this generation.

Body, water leaks, and corrosion

Cosmetic aging and corrosion are now central concerns, especially in salt‑belt regions and on vehicles stored outdoors.

• Rear quarter‑panel and wheel‑arch rust: Common on 1998–2002 Accords; look for bubbling paint and perforation.
• Underbody and subframe corrosion: Surface rust can progress to structural concerns if neglected; inspect jacking points and rear subframe.
• Trunk water intrusion: Hardened taillight gaskets and clogged trunk vents let water pool in the spare‑tire well.
• Weatherstrips and window seals: Aging rubber causes wind noise and water ingress.
• Clear‑coat failure: Hood, roof, and trunk lid peeling is widespread on original paint, especially darker colors.

Early intervention—cleaning drains, replacing gaskets, and treating rust—slows deterioration and protects resale value.

What to check on a used 1999 Accord EX today

A thorough pre‑purchase evaluation can separate a solid driver from a money pit. Focus on safety items, powertrain health, and rust.

• Run the VIN for recalls and crash history; confirm Takata and ignition‑switch remedies were done.
• Drive long enough to warm up the transmission; watch for slipping, harsh shifts, or a flashing D4 light.
• Scan for codes (P0401, P1457, P0420, P1298), review monitors, and check readiness.
• Inspect for oil leaks around the timing cover and pan; ask for timing belt/water pump receipts.
• Check engine mounts, suspension bushings, and tire wear patterns; request an alignment printout if available.
• Test all windows, locks, sunroof, lights, and HVAC; look for damp carpets and trunk water.
• Evaluate underbody and wheel‑arch rust with the car on a lift; probe suspect areas carefully.

Budget for immediate maintenance if records are thin; a well‑maintained example often costs less over time than a cheaper, neglected car.

Repair costs and typical fixes

Parts availability remains good, and many jobs are straightforward for an experienced independent shop. Estimated ranges vary by region and parts quality.

• Automatic transmission rebuild/replacement: $2,500–$4,000+ (higher if sourcing quality reman units).
• EGR passage cleaning and valve replacement: $150–$450 depending on scope.
• EVAP canister/vent shut valve and hoses: $250–$600.
• Engine mounts (set): $400–$900 parts and labor.
• Door lock actuator or window regulator: $120–$350 each.
• Front control arm bushings or arms: $300–$700 with alignment.
• Timing belt/water pump/tensioner service (4‑cyl or V6): $600–$1,000.
• ABS sensor: $120–$250 per corner; ABS modulator substantially more.
• Takata airbag inflators and ignition switch recall: No charge at dealers (recall work).

Using OEM or high‑quality aftermarket parts and following Honda service procedures generally yields the best long‑term results.

Preventive maintenance that pays off

Proactive care can prevent many “common problems” from appearing—or reappearing.

• Use Honda ATF DW‑1 and change on schedule; avoid universal fluids and excessive flush pressure.
• Clean throttle body and EGR passages periodically; use top‑tier fuel to reduce deposits.
• Replace timing belt, water pump, and seals at time/mi intervals; consider the balance shaft seal retainer on 4‑cyl engines.
• Inspect and replace engine/trans mounts before severe vibration stresses the exhaust and axles.
• Service brake slide pins and bleed fluid; check ABS sensor wiring for corrosion.
• Keep sunroof and cowl drains clear; replace taillight and door seals to prevent water damage.
• Check the VIN for open recalls annually; schedule airbag and ignition fixes immediately if outstanding.

A small, regular maintenance budget often beats large, irregular repair bills—especially on vehicles of this age.

Summary

The 1999 Honda Accord EX is known for automatic transmission vulnerability (notably on V6 cars), emissions‑system faults like EGR and EVAP issues, worn mounts and bushings, and aging electrical components. High‑priority recalls cover the Takata airbags and ignition switch. With recalls addressed, a documented timing‑belt service, proper ATF, and routine cleaning of intake/EGR systems, these cars can remain reliable daily drivers. Thorough inspection for rust, water leaks, and suspension wear is crucial given their age.

What engine is in a 99 Accord EX?

1999 Honda Accord Specs, Features & Options

Save 1 of 2 Accord LX Coupe 2D	Save 2 of 2 Accord EX Coupe 2D
See Pricing See Cars in Stock	See Pricing See Cars in Stock
Engine
4-Cyl, VTEC, 2.3 Liter	V6, VTEC, 3.0 Liter
Cargo Volume

What is the most common problem in a Honda Accord?

Mason Auto Repair

• The Age-Old Transmission Tribulation. One of the Honda Accord’s most talked-about issues revolves around its transmission.
• Electrical Malfunctions Unplugged.
• Braking Bad.
• Steering Clear of Trouble.
• Air Conditioning.
• Suspension.
• Engine Issues.

How many miles will a 1999 Honda Accord last?

A well-maintained 1999 Honda Accord can be expected to last between 200,000 and 300,000 miles. With diligent maintenance and proper care, some owners have even reported their Accords exceeding 300,000 miles. The lifespan of any vehicle, including a 1999 Honda Accord, is heavily influenced by how well it’s maintained. 
Factors that contribute to the longevity of a 1999 Honda Accord:

• Regular Maintenance: Following the manufacturer’s recommended maintenance schedule, including oil changes, fluid top-offs, and filter replacements, is crucial. 
• Driving Habits: Gentle driving with less aggressive acceleration and braking can significantly extend the life of the engine and other components. 
• Environmental Conditions: Extreme temperatures and harsh weather conditions can accelerate wear and tear. 
• Rust Prevention: In areas with road salt, rust can be a major factor in a car’s longevity. Regular washing and rust prevention measures are helpful. 
• Timely Repairs: Addressing minor issues promptly can prevent them from escalating into major and expensive repairs. 

What year to avoid Honda Accord?

You should consider avoiding Honda Accord years with known transmission, airbag, or premature brake issues, particularly the 1998-2002 (especially V6 transmissions and airbag recalls), 2003 (transmission issues), 2008 (premature brake wear and oil consumption), and the first model year of the two latest generations, 2013 and 2018, due to issues with electric power steering, forward collision systems, and infotainment. 
Model Years to Avoid

• 1998-2002 (Sixth Generation): . Opens in new tabThis generation saw many problematic V6 transmissions and was heavily affected by the Takata airbag recalls. 
• 2003 (Seventh Generation): . Opens in new tabThis model year is particularly problematic for transmission issues, especially with V6 models. 
• 2008 (Eighth Generation): . Opens in new tabKnown for premature brake wear and excessive oil consumption in the 4-cylinder models. 
• 2013 (Ninth Generation): . Opens in new tabFeatures issues with the electric power steering (EPS) system and infotainment screens. 
• 2018 (Tenth Generation): . Opens in new tabAs the first year with a new turbo 4-cylinder engine, it experienced recalls and a high number of complaints related to the engine, power steering, and forward collision systems. 

Common Issues by Model Year 

• 1998-2002: V6 transmission failures and airbag problems.
• 2003-2004: Widespread V6 transmission failures.
• 2008-2010: Excessive oil consumption in 4-cylinder engines.
• 2013-2015: Electric power steering (EPS) system issues.
• 2018+: Power steering, forward collision system, and infotainment issues.

Recommendation
For a reliable used Honda Accord, look at models after these problem years, such as the 2006-2007 models to avoid 7th generation transmission issues or the 2009-2012 models after the 2008 brake and oil issues, and consider the later 2019-2020 or even the newest models after any initial kinks in the 2018 generation have been resolved.