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 for spirited driving and responsive acceleration. It utilized multi-point fuel injection and was paired with performance-tuned suspensions in its applications. Emissions compliance for its production period was met through standard catalytic converter systems, aligning with US federal standards of the early 1990s.
One documented service concern involves premature failure of the distributor drive gear, particularly in high-mileage or high-RPM applications. This issue, addressed in Chrysler Technical Service Bulletin 18-05-94, is attributed to material wear under sustained load. The EER was succeeded by updated engine families featuring distributorless ignition systems.
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 DOHC design provides a broad torque curve suitable for spirited driving but requires strict adherence to 60,000-mile timing belt replacement intervals to prevent catastrophic engine damage. The distributor drive gear is a known wear item; any signs of ignition misfire or rough running at high RPM should prompt immediate inspection per TSB 18-05-94. Using the specified API SH oil is critical for valve train longevity. The engine's cast iron block offers durability but adds significant weight.
Oil Specs: Requires API SH specification oil (Chrysler Owner's Manual 1994). Modern API SP oils are backward compatible.
Emissions: US Federal Tier 0 certification applies to all 1993-1995 EER engines (EPA Engine Family CCAE2.5L94A).
Power Ratings: Measured under SAE net standards. Output is consistent across all model applications (Chrysler Powertrain Handbook 1994).
Chrysler Technical Service Bulletin (TSB) 18-05-94
Chrysler Powertrain Handbook (1994 Edition)
EPA Engine Family Database (CCAE2.5L94A)
Chrysler Owner's Manual (Dodge Spirit R/T, 1994)
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.
Locate the engine code stamped on a flat pad on the front of the cylinder block, just below the cylinder head and to the right of the timing cover (Chrysler Service Manual 1994). The 8th digit of the VIN will be 'E' for vehicles equipped with the EER engine. Visually, it can be identified by its black plastic valve cover labeled "2.5 DOHC" and the presence of a distributor on the rear of the cylinder head. Critical differentiation from the turbocharged 2.2L/2.5L: The EER is naturally aspirated and has a unique intake manifold casting. Always verify the engine code stamping, as visual similarities exist with other 2.5L variants.
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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