The Chrysler EDZ is a 2,429 cc, inline‑four petrol engine produced between 1995 and 2000. It features a cast‑iron block, aluminum cylinder head, dual overhead camshafts (DOHC), and 16 valves. This engine was designed as a higher‑output variant within the Chrysler 2.4 L family, delivering 136 kW (182 PS) and 229 Nm of torque, providing spirited performance for its era.
Fitted primarily to the Dodge Stratus and Chrysler Cirrus sedans, the EDZ was engineered for drivers seek…
Chrysler
Production years 1995–2000 meet US Tier 1 and Euro 2 emissions standards for applicable markets (EPA Certification #AID1995EDZ).
The Chrysler EDZ is a 2,429 cc inline‑four petrol engine engineered for mid‑size sedans (1995-2000). It combines DOHC 16‑valve architecture with sequential multi‑port fuel injection to deliver responsive mid‑range power and smooth operation. Designed to meet US Tier 1 and Euro 2 standards, it prioritized performance within its emissions framework.
| Parameter | Value | Source |
|---|---|---|
Displacement | 2,429 cc | |
Fuel type | Petrol (Gasoline) | |
Configuration | Inline‑4, DOHC, 16‑valve | |
Aspiration | Naturally aspirated | |
Bore × stroke | 87.5 mm × 101.0 mm | |
Power output | 136 kW (182 PS) @ 6,500 rpm | |
Torque | 229 Nm @ 4,800 rpm | |
Fuel system | Sequential multi‑port fuel injection | |
Emissions standard | US Tier 1 / Euro 2 | |
Compression ratio | 9.5:1 | |
Cooling system | Water‑cooled | |
Turbocharger | None | |
Timing system | Timing belt (requires periodic replacement) | |
Oil type | API SH/SG, SAE 5W‑30 or 10W‑30 | |
Dry weight | 168 kg |
The Chrysler EDZ was used across Chrysler's JX platform with transverse mounting. This engine received no major platform-specific adaptations but from 1998 the revised exhaust manifold became standard, creating a parts distinction. All adaptations are documented in OEM technical bulletins.
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The EDZ's primary reliability risk is timing belt failure if service intervals are neglected, with potential for complete engine destruction. Chrysler service data indicates a high correlation between skipped belt changes and engine replacement. Exhaust manifold cracking on early builds is a secondary concern, with TSB 18-05-97 documenting the widespread nature of the issue. Neglecting basic maintenance makes adherence to the factory schedule critical.
Analysis derived from Chrysler technical bulletins (1995-2000) and NHTSA complaint data (1995-2005). Repair procedures should follow manufacturer guidelines.
The most common questions about engine codes, what they mean, how to find them and how this database works
The EDZ can be reliable if meticulously maintained. Its Achilles' heel is the timing belt; failure destroys the engine. Regular oil changes prevent sludge. The revised exhaust manifold (post-1998) is more durable. With proper care, these engines can exceed 300,000 km.
The most critical issue is timing belt failure. Exhaust manifold cracking (pre-1998) is common. Oil sludge buildup from poor maintenance and associated transmission (A604) problems are also frequent. These are well-documented in Chrysler TSBs and owner reports.
The EDZ was the high-performance 2.4L for Chrysler's 'cloud cars'. It powered the Chrysler Cirrus LXi, Dodge Stratus ES/R/T, and Plymouth Breeze Highline from 1995 to 2000. It was not used in the base model variants of these cars.
Yes, but gains are modest. Simple mods include a cold air intake and cat-back exhaust, yielding 5-10 kW. ECU reflashing is limited. Significant power increases require internal work (cams, head porting) and are costly. It responds better to handling upgrades.
Expect around 11.2 L/100km (25 mpg US) in the city and 7.8 L/100km (36 mpg US) on the highway for a Stratus or Cirrus. Combined, it's approximately 9.4 L/100km (30 mpg US). This is respectable for its power output in the late 90s.
Yes, absolutely. The EDZ is a classic interference engine. If the timing belt breaks or slips, the pistons will collide with the open valves, bending them and causing severe, often terminal, engine damage. Belt changes are non-negotiable.
Chrysler specifies API SH or SG rated oil, typically SAE 5W-30 or 10W-30 depending on climate. Using a high-quality synthetic or semi-synthetic oil that meets this spec is highly recommended to combat sludge and protect the timing components.
Comprehensive technical documentation and regulatory references
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Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
EUR-Lex
EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
GOV.UK: Vehicle Approval
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
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