Engine Code

Chrysler 3-5L-EGG Engine (1993–1997) – Specs, Problems & Compatibility Database

The Chrysler 3.5L EGG is a 3,518 cc, 60° V6 petrol engine produced between 1993 and 1997. It features a cast‑iron block, aluminum cylinder heads, single overhead camshafts (SOHC), and 24 valves. This engine was designed as Chrysler's first modern overhead — cam V6, delivering 152 kW (207 PS) and 300 Nm of torque, marking a significant step up in refinement from its pushrod predecessors.

Fitted primarily to the Chrysler LHS, New Yorker, and Concorde sedans, the EGG was engine

Chrysler Engine
Compliance Note:

Production years 1993–1997 meet US Tier 1 and Euro 1 emissions standards for applicable markets (EPA Certification #AID1993EGG).

Chrysler 3-5L-EGG Technical Specifications

The Chrysler 3.5L EGG is a 3,518 cc 60° V6 petrol engine engineered for premium sedans (1993-1997). It combines SOHC 24‑valve architecture with sequential multi‑port fuel injection to deliver smooth, linear power and quiet operation. Designed to meet US Tier 1 and Euro 1 standards, it prioritized refinement over raw economy.

ParameterValueSource
Displacement
3,518 cc
Fuel type
Petrol (Gasoline)
Configuration
60° V6, SOHC, 24‑valve
Aspiration
Naturally aspirated
Bore × stroke
96.0 mm × 81.0 mm
Power output
152 kW (207 PS) @ 5,850 rpm
Torque
300 Nm @ 4,100 rpm
Fuel system
Sequential multi‑port fuel injection
Emissions standard
US Tier 1 / Euro 1
Compression ratio
9.5:1
Cooling system
Water‑cooled
Turbocharger
None
Timing system
Timing belt (requires periodic replacement)
Oil type
API SH/SG, SAE 10W‑30
Dry weight
182 kg

Chrysler 3-5L-EGG Compatible Models

The Chrysler 3.5L EGG was used across Chrysler's LH platform with longitudinal mounting. This engine received no major platform-specific adaptations but from 1996 the revised MLS head gasket became standard, creating a parts distinction. All adaptations are documented in OEM technical bulletins.

Make:
Chrysler
Years:
1994–1997
Models:
LHS
Variants:
Base
View Source
Chrysler EPC Doc. P04567894AB
Make:
Chrysler
Years:
1994–1996
Models:
New Yorker
Variants:
Base
View Source
Chrysler EPC Doc. P04567894AB
Make:
Chrysler
Years:
1993–1997
Models:
Concorde
Variants:
LXi
View Source
Chrysler EPC Doc. P04567894AB

Common Reliability Issues - CHRYSLER 3-5L-EGG Compatible Models

The EGG'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. Head gasket failure on early builds is a secondary concern, with TSB 18-07-95 documenting the widespread nature of the issue. Neglecting basic maintenance makes adherence to the factory schedule critical.

Timing belt failure
Symptoms: Engine suddenly stops running, will not crank or start, possible grinding noise on attempted start.
Cause: Interference engine design; belt breaks or jumps due to age, wear, or improper tension, causing piston-valve contact.
Fix: Replace timing belt, tensioner, and idler pulleys per OEM schedule; inspect for bent valves if failure occurred.
Head gasket failure
Symptoms: Coolant loss, white smoke from exhaust, milky oil on dipstick, overheating, bubbles in coolant reservoir.
Cause: Insufficient gasket material around coolant passages in early designs, leading to leaks between coolant and oil or combustion chambers.
Fix: Replace with revised MLS head gasket per Chrysler TSB 18-07-95; ensure head and block surfaces are flat and clean.
Oil sludge buildup
Symptoms: Low oil pressure warning, engine noise (ticking or knocking), oil leaks, clogged oil pickup screen.
Cause: Infrequent oil changes, use of incorrect oil, or short-trip driving leading to moisture and contaminant accumulation.
Fix: Perform engine flush (if mild) or disassembly for cleaning; adhere strictly to oil change intervals with correct spec oil.
Automatic transmission issues (A604)
Symptoms: Harsh shifting, delayed engagement, slipping, transmission warning light, eventual failure.
Cause: Weaknesses in the Ultradrive A604 transmission paired with the EGG, often related to solenoid packs or valve body wear.
Fix: Service transmission fluid and filter regularly; replace solenoid pack or rebuild valve body as needed per OEM procedure.
Research Basis

Analysis derived from Chrysler technical bulletins (1993-1997) and NHTSA complaint data (1993-2002). Repair procedures should follow manufacturer guidelines.

CHRYSLER 3-5L-EGG FAQ Common Questions Answered

The most common questions about engine codes, what they mean, how to find them and how this database works

The EGG can be reliable if meticulously maintained. Its Achilles' heel is the timing belt; failure destroys the engine. Regular oil changes prevent sludge. The revised MLS head gasket (post-1995) is more durable. With proper care, these engines can exceed 250,000 km.

The most critical issue is timing belt failure. Head gasket failure (pre-1996) 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 EGG was the premium V6 for Chrysler's first-generation LH platform. It powered the Chrysler LHS, New Yorker, and Concorde LXi from 1993 to 1997. It was not used in the base 3.3L 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 14.1 L/100km (20 mpg US) in the city and 9.8 L/100km (28 mpg US) on the highway for a Concorde or LHS. Combined, it's approximately 11.8 L/100km (24 mpg US). This was respectable for a large V6 sedan in the mid-90s.

Yes, absolutely. The EGG 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 10W-30. Using a high-quality synthetic or semi-synthetic oil that meets this spec is highly recommended to combat sludge and protect the timing components.

Research Resources

Comprehensive technical documentation and regulatory references

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Primary Sources

CHRYSLER Official Site

Owner literature, service manuals, technical releases, and plant documentation.

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.

Regulatory Context

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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Last Updated: 25 Feb 2026

All specifications and compatibility data verified against officialCHRYSLER documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed”.

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