![]() If the issues about the engine are caught early on through regular maintenance, its lifespan could be stretched as far as 200,000 miles. One of the things that long-time users praise about it is its reliability. Save for its common problems, many of which happen to be more prevalent due to age, the 2.4L engine is a durable product. Longevity of the 2004-2010 Chevrolet Cobalt 2.4L Engine These are sluggish by today's standards but pretty decent enough for their time. The numbers propel the sedan version of the Cobalt from 0 to 60 mph in 7.8 seconds while the coupe can achieve the same feat in 7.4 seconds. In the 2004-2010 Chevy Cobalt, the 2.4L engine is configured to deliver 173 hp at 5,600 rpm and 163 lb-ft of torque at 4,000 rpm. A high ratio lets an engine extract more energy from the combustion process and it generates higher combustion temperatures while using less fuel. The high compression ratio translates to improved thermal efficiency. The layout of the power unit allowed a compression ratio of 10.4.1. ![]() This is intended to make every drop of gas in the 2.4L engine matter by ensuring that it supplies the right amount of fuel in accordance with any given scenario and that the correct air-fuel ratio is observed. Moreover, a conventional sequential multi-point fuel injection (MPFI) system is integrated into the engine for providing a further boost in fuel efficiency. It also possessed a dual overhead camshaft that utilizes a chain-driven system. The adoption of the system in the unit paved way for better timing, duration, and lift of valve events that highly contributed to enhanced low-end torque. The intake and exhaust of the 2.4L engine are managed via variable valve timing (VVT) technology. Like its predecessor, the 2.4L engine was offered in all-aluminum block and head and it operated under atmospheric pressure.įor its application in the 2004-2010 Chevy Cobalt, the powerplant came with a bore of 88 mm and a stroke of 98 mm. The engine came in with 2,384 cc displacement, giving it a lot of edge over the 2.2L in terms of power and efficiency. The production of the 2.4L engine far outlived the first generation of the Cobalt as it had undergone a series of upgrades to match its various applications and to remain competitive in the market. It definitely had bigger shoes to fill for being the larger version of the Ecotec. The 2.4L engine used by the 2004-2010 Chevy Cobalt comes from General Motors (GM) successful Ecotec line. Key Specs of the 2004-2010 Chevrolet Cobalt 2.4L Engine In this article, let's take a look at the ups and downs of the 2.4L inline-four engine powering the Cobalt to confirm whether or not it's for keeps. In its production years, there were several recalls of the car over safety issues, and a few of them were directly related to the engine. The first-generation model of the Chevy Cobalt made from 2004 to 2010 housed a 2.4L inline-four engine designated as the LE5 by the American automaker. It came as a replacement for the Chevy Cavalier and the Geo/Chevy Prizm compact cars, and it was available in sedan and coupe forms. The Chevrolet Cobalt first rolled into the market with a bang in 2004 as a 2005 model year car.
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