Comprehensive guide to 2001 Subaru Impreza common problems, maintenance schedules, and ownership costs. Expert insights from owner's manual analysis.
$528
Based on real owner data
3/10
Owner-reported reliability
5
Known problems tracked
The 2001 Subaru Impreza represents a solid entry-level compact car offering Subaru's renowned all-wheel drive system as standard equipment. Available in sedan, wagon, and coupe configurations, this generation Impreza features a 2.2-liter or 2.5-liter boxer engine paired with either a 5-speed manual or 4-speed automatic transmission. The vehicle appeals to young professionals, outdoor enthusiasts, and families seeking reliable all-weather capability without premium pricing. Standard safety features include dual front airbags, ABS (on equipped models), and comprehensive seatbelt systems. The Impreza's symmetrical all-wheel drive provides excellent traction in various weather conditions, making it particularly popular in snow-prone regions. Interior space is adequate for its class, with practical storage solutions and user-friendly controls. While not luxurious, the 2001 Impreza offers dependable transportation with Subaru's characteristic durability. The vehicle's simple design and robust engineering contribute to its reputation for longevity, though some components may require attention as the vehicle ages.
The 2.5-liter engines in 2001 Imprezas are prone to head gasket failure, typically occurring between 100,000-150,000 miles. Symptoms include white exhaust smoke, coolant loss, and overheating. This is caused by inadequate gasket design and thermal cycling.
The timing belt requires replacement every 105,000 miles and is an interference engine, meaning valve damage occurs if the belt breaks. Water pump failure often coincides with timing belt service intervals due to age and coolant contamination.
Constant velocity joints, particularly on the front axles, commonly wear out due to the all-wheel drive system's complexity. Symptoms include clicking noises during turns and vibration during acceleration.
The 4-speed automatic transmission may experience delayed shifting, slipping, or complete failure, especially in vehicles with higher mileage. Poor maintenance and heavy use of AWD system accelerate wear.
The exhaust system, particularly the catalytic converter and muffler, is susceptible to corrosion due to the boxer engine's low-mounted configuration and exposure to road salt and moisture.
| Interval | Service | Priority |
|---|---|---|
| Every 3,000-5,000 miles | Engine Oil and Filter Change | critical |
| Every 30,000 miles | Transmission Fluid Service | critical |
| Every 105,000 miles | Timing Belt and Water Pump Replacement | critical |
| Every 30,000 miles | Air Filter Replacement | recommended |
| Every 6 months | Tire Rotation and Inspection | recommended |
| Every 60,000 miles | Spark Plug Replacement | recommended |
| Every 2 years | Coolant System Flush | critical |
| Every 30,000 miles | Brake Fluid Replacement | recommended |
Use API classification SJ or SH engine oil with 'ENERGY CONSERVING II' designation. The recommended viscosity is 5W-30 for most climates. The engine oil capacity is 4.2 US quarts (4.0 liters). Synthetic oil can provide better protection, especially in extreme temperatures.
Common signs include white exhaust smoke, coolant loss without visible leaks, overheating, milky oil, bubbling in the radiator, and sweet exhaust smell. The 2.5-liter engines are particularly susceptible to this issue. If you notice these symptoms, have the cooling system pressure tested immediately.
Use unleaded gasoline with an octane rating of 87 AKI (Anti Knock Index) or higher. Higher octane fuel is not necessary unless specified for turbocharged models. The fuel tank capacity is 15.9 US gallons (60 liters).
The 2001 Impreza features symmetrical all-wheel drive that continuously sends power to all four wheels. The system uses a center differential to distribute power between front and rear axles, providing superior traction in various conditions. No driver input is required - the system operates automatically.
Replace the timing belt every 105,000 miles or 8 years, whichever comes first. This is an interference engine, meaning if the timing belt breaks, it can cause expensive valve damage. Always replace the water pump, tensioners, and pulleys at the same time.
Common causes include loose gas cap, oxygen sensor failure, catalytic converter issues, or emissions system problems. First, ensure the fuel cap is properly tightened. If the light persists, have the diagnostic codes read with an OBD-II scanner to identify the specific issue.
Change automatic transmission fluid every 30,000 miles under normal conditions, or more frequently under severe conditions like towing or stop-and-go traffic. Manual transmission oil should be changed every 30,000 miles or as needed if contaminated.
Immediately pull over safely, turn off the engine, and allow it to cool completely. Check coolant levels when cool, and inspect for visible leaks. Do not remove the radiator cap when hot. If coolant is low, add coolant and have the system inspected for leaks or head gasket issues.
Keep all four tires at the same pressure and replace all four tires at once when possible. Use identical tire sizes and tread patterns to prevent drivetrain binding. Change front and rear differential oils according to the maintenance schedule, typically every 30,000 miles.
Listen for clicking or popping noises when turning, especially from parking lots or driveways. Vibration during acceleration or torn CV joint boots also indicate wear. These are common wear items on AWD vehicles due to the constant power delivery to all wheels.
Join thousands of Subaru owners using Carvetka to track maintenance, expenses, and stay on top of vehicle care.
Last updated: November 16, 2025
Data based on real Subaru Impreza owner reports and OEM specifications
