2002 Chrysler 300M

The 2002 Chrysler 300M is a full-size, front-wheel-drive sedan known for its spacious interior, comfortable ride, and distinctive styling. The 2002 model year came standard with a 3.5L High Output 24-Valve V6 engine producing 253 horsepower and 255 lb-ft of torque, paired with a 4-speed automatic transmission (42LE). The 300M offers a good blend of performance and comfort and many owners praised its comfortable seating, smooth ride, and responsive handling. Common complaints include the vehicle’s age-related reliability issues, especially regarding electrical components and the automatic transmission.

Engine

3.5L High Output 24-Valve V6

• Oil Leaks
  • Description/Symptoms: Oil leaks are common as the engine ages. The valve cover gaskets, oil pan gasket, and rear main seal are prone to leaking. Visible oil drips, burning oil smell, and low oil level are symptoms.
  • Solution: Replace the leaking gaskets or seals.
  • Estimated Cost to Fix: $100 - $400+ depending on the location of the leak and the shop rates.
• Sludge Buildup
  • Description/Symptoms: The 3.5L engine can be prone to sludge buildup if oil changes are not performed regularly, or are performed with low-quality oil.
  • Solution: Perform regular oil changes with high-quality oil, or perform an engine flush. Major sludge buildup may require more extensive engine cleaning or even engine replacement.
  • Estimated Cost to Fix: $50 - $200+ for an engine flush, up to $3000+ for engine replacement.
  • Recalls: None Found

Transmission

42LE 4-Speed Automatic Transmission

• Transmission Slipping/Hard Shifting
  • Description/Symptoms: The 42LE transmission is known for experiencing slipping between gears, harsh or delayed shifting, and general erratic behavior. These issues often become more prevalent as the vehicle ages and the transmission fluid degrades.
  • Solution: A complete transmission flush and filter change using the correct ATF+4 fluid can sometimes help, but often a rebuild or replacement is necessary.
  • Estimated Cost to Fix: $100 - $300 for a fluid change, $1500 - $3500+ for a rebuild or replacement.
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: Shuddering at low speeds, stalling, and a general lack of power.
  • Solution: Replace the torque converter. In some cases, a transmission rebuild may be necessary.
  • Estimated Cost to Fix: $800 - $2000+

Suspension

• Front Strut/Rear Shock Failure
  • Description/Symptoms: Clunking noises, poor handling, and excessive bouncing.
  • Solution: Replace worn struts and shocks.
  • Estimated Cost to Fix: $300 - $800+ per axle, depending on parts and labor.
• Sway Bar Link Wear
  • Description/Symptoms: Clunking noises, especially when going over bumps or turning.
  • Solution: Replace worn sway bar links and bushings.
  • Estimated Cost to Fix: $100 - $300+

Electrical

• Power Window Motor Failure
  • Description/Symptoms: Windows that move slowly, erratically, or not at all.
  • Solution: Replace the faulty power window motor.
  • Estimated Cost to Fix: $150 - $400+ per window.
• Central Timer Module (CTM) Issues
  • Description/Symptoms: The CTM controls various electrical functions, and its failure can lead to issues such as intermittent lighting problems, security system malfunctions, and door lock issues.
  • Solution: Replacing the CTM is the usual solution. Programming of the new module may be required.
  • Estimated Cost to Fix: $200 - $600+
• Instrument Cluster Issues
  • Description/Symptoms: Intermittent or complete failure of gauges, backlighting issues, and error messages.
  • Solution: Repair or replacement of the instrument cluster.
  • Estimated Cost to Fix: $200 - $600+
• Body Control Module (BCM) Issues
  • Description/Symptoms: Intermittent or complete failure of various electrical components on the vehicle such as turn signals, windshield wipers, and power windows.
  • Solution: Repair or replacement of the body control module.
  • Estimated Cost to Fix: $300 - $800+

Exterior

• Headlight Lens Yellowing/Clouding
  • Description/Symptoms: Headlights become yellowed or clouded, reducing visibility at night.
  • Solution: Headlight restoration kits can temporarily improve visibility, but replacement of the headlight assemblies is the most effective solution.
  • Estimated Cost to Fix: $20 - $50 for a restoration kit, $200 - $500+ for new headlight assemblies.

Interior

• Automatic Climate Control (ATC) Malfunctions
  • Description/Symptoms: The ATC system may blow hot or cold air inconsistently, or the display may malfunction.
  • Solution: The problem may be with the ATC module itself, a faulty blend door actuator, or a temperature sensor. Diagnosis is key to determining the correct repair.
  • Estimated Cost to Fix: $100 - $600+, depending on the component that needs replacement.
• Sunroof Issues
  • Description/Symptoms: Sunroof gets stuck, doesn’t open or close properly, or makes grinding noises.
  • Solution: Repair or replacement of sunroof motor, track, or entire assembly.
  • Estimated Cost to Fix: $200 - $800+

Summary

The 2002 Chrysler 300M, while offering a comfortable and stylish ride, is prone to several age-related issues. The most common problems revolve around the engine (oil leaks, sludge buildup), transmission (slipping/hard shifting), electrical systems (window motors, CTM malfunctions), and suspension components. While some issues are relatively inexpensive to fix, others, like transmission problems or complex electrical issues, can be costly. Potential buyers should be aware of these potential maintenance costs and thoroughly inspect the vehicle before purchasing.