The Chrysler EER is a 2,499 cc, inline‑four petrol engine produced between 1993 and 1995. It features a cast iron block, aluminum head, and dual overhead camshafts (DOHC) with 16 valves. This engine was designed as a higher — output variant within the 2.5L family, delivering 150 hp (112 kW) and 162 lb‑ft (220 Nm) of torque, providing a balance of performance and reliability for its era.
Fitted primarily to the Dodge Spirit R/T and Chrysler LeBaron GTC, the EER was engineered fo…
Production years 1993–1995 meet US Federal Tier 0 emissions standards (EPA Engine Family Number: CCAE2.5L94A).
The Chrysler EER is a 2,499 cc inline‑four petrol engine engineered for performance sedans (1993-1995). It combines DOHC 16-valve architecture with multi-point fuel injection to deliver responsive power and a sporty driving character. Designed to meet early 1990s US Federal emissions standards, it offered a compelling blend of performance for its vehicle class.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,499 cc | |
Fuel type | Petrol | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 96.0 mm × 86.0 mm | |
Power output | 150 hp (112 kW) @ 5,800 rpm | |
Torque | 162 lb‑ft (220 Nm) @ 4,000 rpm | |
Fuel system | Multi-point fuel injection (MPFI) | |
Emissions standard | US Federal Tier 0 | |
Compression ratio | 9.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Timing belt (drives camshafts and distributor) | |
Oil type | API SH 10W‑30 or 5W‑30 | |
Dry weight | 365 lb (166 kg) |
The Chrysler EER was used exclusively in Chrysler Corporation performance sedans with longitudinal mounting. This engine was a specific high-output variant for the Dodge Spirit R/T and Chrysler LeBaron GTC, featuring unique ECU tuning and intake manifolds compared to the base 2.5L. No licensing partnerships or platform sharing occurred outside these models. All specifications are documented in OEM service literature.
The EER's primary reliability risk is distributor drive gear failure, with elevated incidence in high-performance or high-mileage applications. Chrysler TSB 18-05-94 documents this as a common cause of ignition failure. Neglecting the 60,000-mile timing belt interval poses a severe risk of total engine destruction due to its interference design, making adherence to this schedule critical.
Analysis derived from Chrysler technical service bulletins (1993-1995) and owner-reported data from the Chrysler Historical Society. Repair procedures should follow manufacturer guidelines.
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The EER can be reliable long-term if its two critical weaknesses are addressed: replacing the distributor gear with the steel update and strictly adhering to the 60,000-mile timing belt interval. With these items maintained, the engine's robust cast iron block and proven design offer good longevity.
The most common and critical problems are distributor drive gear wear (TSB 18-05-94) and timing belt failure. Secondary issues include intake manifold gasket leaks and oil leaks from the valve cover or rear main seal. Addressing the first two is paramount for reliability.
The EER engine was used exclusively in two models: the Dodge Spirit R/T (1993-1995) and the Chrysler LeBaron GTC (1993-1995). It was the high-performance, naturally aspirated 2.5L variant for these specific performance trim levels.
Yes, mildly. The EER responds well to intake and exhaust upgrades, which can yield modest gains. Its ECU is not easily remappable by modern standards. Significant power increases are limited by the stock internals and the distributor ignition system. Focus is often on improving reliability first.
Fuel economy is modest for its era. Expect approximately 18-20 mpg (US) in city driving and 26-28 mpg (US) on the highway in a Dodge Spirit R/T. Real-world figures vary significantly based on driving style due to its performance-oriented nature.
Yes. The Chrysler EER is definitively an interference engine. If the timing belt fails or jumps time, the pistons will collide with the open valves, causing severe and expensive internal engine damage. This makes the 60,000-mile belt change non-negotiable.
The factory specification is API SH 10W-30 or 5W-30 motor oil. Modern, high-quality synthetic or conventional oils meeting API SP or SN specifications are fully backward compatible and recommended for better protection, especially in older engines.
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