What kind of engine does a 2007 Chevy Cobalt have?
The 2007 Chevrolet Cobalt primarily uses a 2.2-liter Ecotec inline-4 engine; some trims offered a 2.4-liter Ecotec, and the high-performance Cobalt SS used a turbocharged 2.0-liter Ecotec.
Overview of engine options
The engine lineup for the 2007 Cobalt varied by trim and market. Below are the engines most commonly associated with US-spec 2007 models, across standard and sportier variants.
- 2.2-liter Ecotec inline-4 (gasoline) — standard on the majority of base and mid-range trims
- 2.4-liter Ecotec inline-4 — available on some trims as an upgrade option
- 2.0-liter turbocharged Ecotec inline-4 — used in the Cobalt SS for higher performance
Engine availability depended on model year, trim level, and regional specifications. Always verify the exact engine in a given vehicle using the VIN or the original window sticker for accuracy.
2.2-liter Ecotec inline-4
The 2.2-liter Ecotec is part of GM’s Ecotec family and was the standard powerplant for most non-Sport Cobalt models in 2007. It is a four-cylinder gasoline engine designed for smooth operation and adequate everyday performance.
2.4-liter Ecotec inline-4
The 2.4-liter option provides a larger displacement for increased power and torque, available on select trims. It offers a modest bump in performance over the base 2.2-liter engine while maintaining similar fuel economy characteristics for a compact car.
2.0-liter turbocharged Ecotec
The high-performance Cobalt SS employed a turbocharged 2.0-liter Ecotec engine. This powerplant is tuned for higher output and sportier driving characteristics, distinguishing the SS from the standard Cobalt lineup.
Summary
What are the most common problems with a 2007 Chevy Cobalt?
Common problems with the 2007 Chevy Cobalt include issues with the ignition switch recall, which can cause the car to stall or turn off while driving. Other frequent issues are ignition coil and module failure (leading to misfires and a check engine light), stuck ignition keys due to a faulty shifter, a failed timing chain tensioner (causing rattling), a bad gas cap that triggers the check engine light, and a sudden loss of electric power steering assist.
Engine and performance issues
- Ignition switch recall: A major recall affected many models, with a faulty ignition switch that can cause the engine to shut off while driving.
- Ignition coil failure: This can lead to engine misfires and a flashing check engine light.
- Timing chain tensioner failure: A rattling noise from the engine, especially when cold, can indicate a failing timing chain tensioner.
- Stalling: Some models experience stalling at idle or when coming to a stop, with fluctuating RPMs.
- Electric power steering loss: A recall was issued for a sudden loss of power steering assist while driving.
Other common problems
- Stuck ignition key: The ignition key can get stuck in the ignition because of a failure in the automatic transmission shifter assembly.
- Faulty gas cap: A loose or failing gas cap can cause the check engine light to turn on, often accompanied by a fuel smell.
- Combination/Turn Signal Switch Failure: This can lead to malfunctioning headlights or turn signals that don't cancel properly after making a turn.
How many miles will a 2007 Cobalt last?
A 2007 Chevy Cobalt's life expectancy is heavily dependent on maintenance, with many drivers reporting well over 200,000 miles and some reaching 300,000 miles or more. Key factors are regular oil changes, and while the engine is generally reliable, a major component to watch for wear is the timing chain, especially the plastic guides which can break. Other common issues include front-end wear, like ball joints, and potential rust, especially in areas with road salt.
Engine and drivetrain
- Engine: The 2.2L EcoTec engine is generally reliable, especially when properly maintained with regular oil changes.
- Mileage: Many owners report their Cobalts exceeding 200,000 or 250,000 miles. Some have reported reaching over 300,000 miles.
- Timing chain: With proper maintenance, the timing chain itself can last a long time, but the plastic guides can break and should be considered for replacement around 150,000 miles for preventative maintenance.
Common issues and wear
- Front end: Ball joints are a common wear item that may need frequent replacement.
- Rust: Rust, particularly around the pinch welds near the rear wheels, is a common problem that can make the car undrivable, regardless of mechanical condition.
- Other potential repairs: Common repairs for aging vehicles include replacing the fuel tank, fuel lines, or wheel hub assemblies.
How to maximize lifespan
- Perform regular oil changes: This is crucial for engine longevity.
- Monitor and replace components as needed: Be proactive with replacing wear-and-tear items like timing chain components.
- Prevent rust: If you live in a salty winter climate, consider using an undercoating to prevent rust from taking hold.
What engine does the 2007 Chevy Cobalt have?
2007: The 2.2L engine was retuned and now developed 148 hp (110 kW) at 5600 RPM and 152 ft⋅lb (206 N⋅m) at 4200 RPM while retaining the same fuel economy. Other changes include a new console, new steering wheel and new radio head unit that features an audio input jack.
Is a 2007 Chevy Cobalt a good car?
A 2007 Chevy Cobalt can be a decent car if you are looking for an affordable vehicle with good gas mileage and a smooth ride, but it has a reputation for reliability issues. Common problems include issues with the ignition, wiring, and suspension, so it's crucial to inspect it thoroughly for these potential problems before buying.
Pros
- Good gas mileage: The Cobalt is known for being fuel-efficient.
- Smooth ride: Many drivers find the ride quality surprisingly smooth and comfortable.
- Affordable: It was an affordable car when new and can be found for low prices on the used market, offering good value for the money.
- Performance (SS model): The SS models, especially the turbocharged ones, are considered fun to drive and have a significant tuning potential.
- Mechanically simple: It is generally considered easy to work on.
- Good safety rating: The IIHS gave the 2007 Cobalt a good rating in the side crash test.
Cons
- Reliability concerns: The Cobalt has several common complaints, including issues with the ignition switch, ignition module/coil, and transmission.
- Maintenance costs: Some owners report needing frequent repairs, such as ball joint replacements.
- Cheap interior: The interior is made with cheap plastics and can have a cramped backseat, according to Edmunds and U.S. News & World Report.
- Poor safety features: Without side curtain airbags, the 2007 Cobalt had poor side crash test scores.
- Trunk and other issues: The trunk is hard to open, and the car has had six recalls, so make sure the ignition switch recall has been completed.
