What engines were available in the 2000 Chevrolet Impala?

The 2000 Impala offered two V6 engines: a 3.4L V6 producing 180 horsepower (standard) and a 3.8L Series II V6 producing 200 horsepower (optional). Both engines were paired with a 4-speed automatic transmission.

How reliable is the 2000 Chevrolet Impala?

The 2000 Impala has average reliability for its era, with most issues being predictable and manageable. The main concerns are intake manifold gasket failures on 3.4L engines and transmission problems in higher mileage vehicles. With proper maintenance, many examples reach 200,000+ miles.

What safety features does the 2000 Impala include?

Standard safety features include dual front airbags, 3-point safety belts for all positions, anti-lock brakes (ABS), and daytime running lamps. Optional equipment included side-impact airbags for the driver and traction control system.

What is the fuel economy of the 2000 Impala?

The 2000 Impala achieves approximately 20-22 mpg city and 29-32 mpg highway, depending on the engine choice and driving conditions. The 3.4L V6 typically offers slightly better fuel economy than the 3.8L V6.

How do I reset the oil life monitor on a 2000 Impala?

To reset the oil life monitor, turn the radio off, press and hold the DISP button for 5 seconds until SETTINGS appears, scroll to OIL LIFE, press PREV or NEXT to enter submenu, select RESET, then press DISP to confirm.

What should I know about the 2000 Impala's air bag system?

The 2000 Impala has frontal airbags for driver and passenger, with optional side-impact airbags. Never place a rear-facing child seat in the front passenger seat due to airbag deployment risks. The airbag readiness light should be monitored for any electrical problems.

How do I program the remote keyless entry transmitter?

Enter vehicle customization mode by holding the DISP button for 5 seconds with radio off, scroll to FOB PROG, press PREV/NEXT, press DISP to start, then hold LOCK and UNLOCK buttons simultaneously on the transmitter for 15 seconds when prompted.

What type of coolant should I use in a 2000 Impala?

Use only GM-approved DEX-COOL coolant (orange-colored, long-life antifreeze) in the 2000 Impala. Never mix different types of coolant, as this can cause system damage and corrosion. The cooling system capacity is approximately 11-12 quarts.

How often should I change the transmission fluid in a 2000 Impala?

Transmission fluid should be changed every 30,000 miles under normal driving conditions, or more frequently under severe conditions (towing, city driving, extreme temperatures). Use only DEXRON III automatic transmission fluid as specified by GM.

What are common signs of intake manifold gasket failure in the 2000 Impala?

Signs include external coolant leaks (especially around the throttle body area), white exhaust smoke, coolant loss without visible external leaks, engine overheating, rough idle, and the presence of coolant in the oil (milky appearance on dipstick).

2000 Chevrolet Impala - Common Problems & Maintenance Guide

The 2000 Chevrolet Impala marked the return of an iconic nameplate, offering a full-size sedan with contemporary styling and modern amenities. Built on GM's W-body platform, it featured either a 3.4L V6 or 3.8L V6 engine paired with a 4-speed automatic transmission. The Impala targeted families and older buyers seeking spacious, comfortable transportation with traditional American sedan characteristics. Standard features included dual front airbags, optional side-impact airbags, power accessories, and a comprehensive safety belt system. With its roomy interior, smooth ride quality, and competitive pricing, the 2000 Impala appealed to those prioritizing comfort and value over sportiness. While generally reliable for its era, owners should be aware of some common issues typical of early 2000s GM vehicles, including intake manifold gasket problems and transmission concerns that can arise with higher mileage.

Common Problems

Intake Manifold Gasket Failuresevere

The plastic intake manifold gaskets on 3.4L V6 engines commonly fail, causing coolant leaks, overheating, and potential engine damage. Symptoms include coolant loss, white exhaust smoke, and engine misfiring. This is a known design flaw affecting many GM vehicles of this era.

Transmission Shifting Problemsmoderate

The 4T65-E automatic transmission may develop harsh shifting, slipping, or failure to engage gears, particularly in higher mileage vehicles. Issues often stem from worn valve body components, solenoid failures, or internal clutch wear.

Power Window Motor Failureminor

Window motors, particularly on the driver's side, commonly fail causing windows to operate slowly or stop working entirely. This is typically due to worn motor brushes or regulator mechanism problems.

Fuel Pump Problemsmoderate

The electric fuel pump may fail without warning, causing the engine to stall or fail to start. Symptoms include engine sputtering, loss of power under acceleration, and difficulty starting when the fuel tank is low.

Air Bag Warning Light Issuesmoderate

The air bag warning light may illuminate due to faulty sensors, wiring problems, or seat belt pretensioner issues. While the air bags may still function, this requires immediate diagnosis for safety reasons.

Recommended Maintenance Schedule

Interval	Service	Priority
Every 3,000-5,000 miles	Engine Oil and Filter Change	critical
Every 6,000 miles	Tire Rotation and Inspection	recommended
Every 30,000 miles	Transmission Fluid Service	critical
Every 30,000 miles	Air Filter Replacement	recommended
Every 50,000 miles	Coolant System Flush	critical
Every 60,000 miles	Spark Plug Replacement	critical
Every 30,000 miles	Brake Fluid Replacement	recommended
Every 100,000 miles	Timing Chain Inspection	recommended

2000 Chevrolet Impala - Common Problems & Maintenance Guide

Common Problems

Recommended Maintenance Schedule

Frequently Asked Questions

Track Your Chevrolet Impala Maintenance