Displacement: 2.7 Liters (2736cc). Configuration: V6. Valve Train: DOHC (Dual Overhead Cam). Power: Approx. 200 hp @ 6400 rpm. Torque: Approx. 190 lb-ft @ 4000 rpm (often found in base Concorde/Intrepid).
Performance
Bore X Stroke 3 5L:
96.0 mm x 81.0 mm
Compression Ratio 3 5L:
9.6:1 (standard), 10.0:1 (HO)
Fuel System
Fuel Delivery:
Sequential Multi-Port Fuel Injection (MPI)
Fuel Type:
87 Octane (Minimum)
Ignition System:
Distributorless Ignition System (DIS) with Coil-on-Plug (COP) or coil packs.
🔧 Transmission
Standard
Transmission Type:
4-Speed Automatic Transaxle
Common Transmission Model:
42LE (for 3.5L V6) / 41TE (for 2.7L V6)
Optional
Optional Transmission:
Manual transmission was not offered on these models for the 2004 model year.
Features
Transmission Control:
Electronic control with adaptive shift logic.
Torque Converter Lock-Up:
Variable lock-up clutch for improved fuel economy.
📐 Dimensions
Exterior
Length 300M:
Approx. 201.0 inches
Length Concorde Intrepid:
Approx. 203.7 inches
Width:
Approx. 74.4 inches
Height:
Approx. 56.7 inches
Wheelbase:
Approx. 113.0 inches
Interior
Passenger Volume:
Approx. 100-105 cubic feet (depending on model)
Cargo Volume:
Approx. 16-18 cubic feet (depending on model)
Weights
Curb Weight:
Approx. 3600 - 3900 lbs (depending on engine and trim)
Gross Vehicle Weight Rating Gvwr:
Approx. 4700 - 4900 lbs
🛡️ Safety Features
Ratings
NHTSA Front Impact Driver:
4 Stars (2004 models)
NHTSA Front Impact Passenger:
4 Stars (2004 models)
NHTSA Side Impact Front Driver:
5 Stars (2004 models)
NHTSA Side Impact Front Passenger:
5 Stars (2004 models)
NHTSA Side Impact Rear Driver:
4 Stars (2004 models)
NHTSA Side Impact Rear Passenger:
4 Stars (2004 models)
IIHS Frontal Offset:
Good (for 300M, Concorde, Intrepid)
Active Features
ABS:
Standard on all models
Traction Control:
Optional on some trims, standard on higher trims (e.g., 300M)
Passive Features
Airbags Front:
Driver and front passenger airbags
Airbags Side:
Optional front side-impact airbags
Seatbelts:
Three-point seatbelts with pretensioners in front.
💡 Technology Features
Infotainment
Audio System:
Premium Infinity stereo systems were often available, featuring multiple speakers and subwoofer options.
Navigation:
Optional factory navigation systems were available on higher trims.
Climate Control Interface:
Automatic climate control with digital displays was common.
Driver Assistance
Cruise Control:
Standard cruise control.
Rear Obstacle Detection:
Optional ParkSense rear parking assist system.
Connectivity
Keyless Entry:
Standard keyless entry and remote start (on some trims).
Telematics:
Early Uconnect or similar telematics systems may have been available as an option, though less sophisticated than modern systems.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Every 3,000-5,000 miles or 3-6 months (recommended, refer to owner's manual for specific synthetic oil intervals).
Air Filter Replacement:
Every 15,000-30,000 miles or as needed based on driving conditions.
Spark Plug Replacement:
3.5L HO V6: Approx. 100,000 miles (platinum/iridium). 2.7L/3.5L V6: Approx. 30,000-60,000 miles (copper/platinum, depending on specific plug type).
Transmission Fluid Change:
Every 30,000-60,000 miles (recommended, depending on driving conditions and fluid type).
Coolant Flush:
Every 30,000-50,000 miles or 2-3 years.
Fluid Specifications
Engine Oil Type:
SAE 5W-30 (API Certified, meets Chrysler MS-6395T)
Engine Oil Capacity 3 5L:
Approx. 4.5 US quarts (with filter)
Engine Oil Capacity 2 7L:
Approx. 3.5 US quarts (with filter)
Transmission Fluid Type:
ATF+4 (Chrysler MS-9602)
Transmission Fluid Capacity 42Le:
Approx. 4.0 US quarts (dry fill)
Coolant Type:
Mopar OAT (Organic Additive Technology) Antifreeze/Coolant, Blue (meets Chrysler MS-9769).
Power Steering Fluid:
ATF+4 (Chrysler MS-9602) or a compatible power steering fluid.
Brake Fluid Type:
DOT 3 (or DOT 4, if specified for ABS)
Known Issues
Engine Mounts:
Premature failure of engine mounts, especially on the 3.5L engines, leading to vibrations.
Transmission Shifting Issues:
Occasional harsh shifting or transmission slipping in the 42LE and 41TE automatics, often related to solenoids or valve body issues.
Heater Core Leaks:
Leaking heater cores, a common issue in many vehicles of this era, causing coolant loss and fogging of the windshield.
Power Window Motors:
Failure of power window regulators and motors.
Cv Axle Boots:
Tearing of CV axle boots, leading to loss of grease and potential axle failure.
📚 Vehicle History
Brand Heritage
Chrysler Legacy:
Chrysler has a long history of producing comfortable, spacious, and often technologically advanced sedans.
Model Evolution
Lh Platform Debut:
The LH platform debuted in 1993 and underwent significant updates for the second generation in 1998, which included the 300M, Concorde, and Intrepid.
300M Positioning:
The 300M was positioned as the sportiest and most luxurious variant, offering a more upscale experience.
Concorde And Intrepid Positioning:
The Concorde and Intrepid shared a platform and offered varying levels of luxury and performance, with the Concorde generally being the more premium offering.
The Chrysler LH platform models, including the 300M and Concorde, were often recognized for their value and comfortable ride, though not consistently on '10 Best' lists for this specific year.
Jd Power Ratings:
Ratings varied by model and year, with some models performing better in initial quality and dependability surveys than others. The 300M often received higher marks for performance and styling.
Certifications
Emissions Certification:
All models met EPA and California emissions standards for the 2004 model year.
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