2.2L L4 (LN2) Features & Benefits
OVERVIEW
This durable workhorse remains the base engine in Chevrolet Cavalier and Pontiac Sunfire, with several upgrades that further enhance durability and production efficiency.
NEW OR CHANGED FOR 2001 MODEL YEAR
* New Camshaft Journals
* Improved Catalytic Converters
* Sleeveless Coolant Sensor
* Improved Cruise Control Module
CUSTOMER BENEFITS
CAMSHAFT
The LN2's assembled steel camshaft is similar to the 3.1-liter LG8 and 3.4-liter LA1 V6s. The shaft is stamped from rolled steel and the lobes are pressed on. The process requires far less machining than conventional production, and the result is a sturdy, economical cam. For model year 2001, the cam is assembled with durable powder metal journals. The new journals allow common assembly for the LN2, LG8 and LA1, and reduce cost.
BETTER CATS
The catalytic converter has the same volume as that used for model year 2000. Yet improved technology allows the converter to work as efficiently with less precious metals in the substrate, or the core of the converter brick where the catalytic reaction begins. The new converter reduces cost considerably and still allows the LN2 to meet National Low Emission Vehicle (NLEV) standards.
STARTER
The new starter motor, supplied by Delco Remy America, draws less amperage than the starter used for model year 2000, yet delivers the same cold cranking power. That means the same starting power with less drain on the battery. The starter is also lighter and costs less to manufacture.
SLEEVELESS COOLANT SENSOR
The coolant temperature sensor uses a plastic insulator to protect electrical leads inside the brass housing, rather than a rubber sleeve. The new sensor reduces the possibility of assembly rejection or shorting in operation.
IMPROVED CRUISE CONTROL
The cruise-control module has been upgraded with the latest electronic board. Though largely transparent to the driver, quality, reliability and durability are improved, and piece cost is reduced.
CONTINUING FEATURES
The manual-transmission LN2 remains a Transitional Low Emissions Vehicle (TLEV) for model year 2001, based on overall corporate credits allowed in government certification programs.
In preparation for flexible-fuel capability in the L43, the 2200 cylinder head was fitted with more durable, pressed-in powder metal valve seats for model year 2000. Maximum fuel pressure was increased from 300 kPa to 400 kPa, improving hot starting and performance under high operating temperatures. The throttle body was fitted with gold-plated terminals for its electrical connections to further improve reliability and durability.
The 2200 OHV line four was launched in the 1982 Chevrolet Cavalier. With nearly two decades of continuous improvement, it remains Powertrain's highest-volume four-cylinder engine in North America. The LN2 underwent significant revisions in 1998. The cylinder heads were revised to improve combustion efficiency and fuel economy. Intake and exhaust manifolds were redesigned to improve airflow, while cam profiles where revised to improve mid-range torque.
LEADERSHIP
Millions of customers have depended upon the 2200 OHV line four for reliable, durable performance in both passenger cars and compact trucks. "This is our no-frills workhorse engine, with a good balance of power and fuel economy. It gets the job done because it meets the requirements of an entry-level customer at an attractive price." --Margaret Madden, Model Year Manager, LN2/L43.
