1998 INFINITI Q45
Introduction
The 1998 INFINITI Q45 is a full-size luxury sedan noted for its spacious interior, smooth ride, and powerful engine. It came equipped with a 4.1L V8 engine paired with a 4-speed automatic transmission, delivering 278 horsepower and 269 lb-ft of torque. While it boasts impressive performance and comfort, the Q45 has been plagued by several common issues affecting various components.
Engine
4.1L V8
Intake Manifold Gasket Failure Description/Symptoms: Leaks coolant and oil, causing performance loss and overheating. Solution: Replace the intake manifold gasket. Estimated Cost to Fix: $500 - $1,000+ Recalls: None Found
Timing Chain Tensioner Failure Description/Symptoms: Loud rattling noises during start-up and acceleration, performance problems. Solution: Replace the timing chain tensioner and related components. Estimated Cost to Fix: $2,000 - $3,000+ Recalls: None Found
Camshaft Sensor Malfunction Description/Symptoms: Difficulty starting, rough idle, engine performance issues. Solution: Replace the camshaft sensor. Estimated Cost to Fix: $300 - $600+ Recalls: None Found
Transmission
4-Speed Automatic
Transmission Fluid Leakage Description/Symptoms: Transmission fluid leaks, causing low fluid levels and performance problems. Solution: Repair or replace the transmission pan, seals, or gaskets to stop the leak. Estimated Cost to Fix: $200 - $500+ Recalls: None Found
Delayed or Rough Shifting Description/Symptoms: Transmission hesitates or shifts roughly, especially during upshifts. Solution: Replace the transmission solenoid or valve body. Estimated Cost to Fix: $500 - $1,500+ Recalls: None Found
Suspension
Strut Mount Bearing Failure Description/Symptoms: Loud clunking or grinding noises from the suspension during turns or over bumps. Solution: Replace the strut mount bearing. Estimated Cost to Fix: $500 - $1,000+ per axle Recalls: None Found
Lower Control Arm Bushing Wear Description/Symptoms: Loose or rattling steering, uneven tire wear. Solution: Replace the lower control arm bushings. Estimated Cost to Fix: $300 - $600+ per axle Recalls: None Found
Electrical
Alternator Failure Description/Symptoms: Battery not charging, electrical system problems, dimming headlights. Solution: Replace the alternator. Estimated Cost to Fix: $500 - $1,200+ Recalls: None Found
Power Window Motor Failure Description/Symptoms: Power windows inoperable or slow-moving. Solution: Replace the power window motor. Estimated Cost to Fix: $300 - $500+ per window Recalls: None Found
Exterior
Headlight Condensation Description/Symptoms: Moisture accumulates inside the headlight assemblies. Solution: Replace the headlight assemblies or seal them to prevent condensation. Estimated Cost to Fix: $500 - $1,000+ per assembly Recalls: None Found
Chrome Trim Peeling Description/Symptoms: Chrome trim on the grille, window surrounds, or wheels becomes dull or peeling. Solution: Re-chrome or replace the affected trim pieces. Estimated Cost to Fix: $500 - $1,500+ depending on the amount of trim affected Recalls: None Found
Interior
Sunroof Switch Malfunction Description/Symptoms: Sunroof does not open or close properly. Solution: Replace the sunroof switch or control module. Estimated Cost to Fix: $500 - $800+ Recalls: None Found
Heated Seat Element Failure Description/Symptoms: Heated seats do not function or only heat unevenly. Solution: Replace the heated seat element or switch. Estimated Cost to Fix: $300 - $600+ per seat Recalls: None Found
Summary
While the 1998 INFINITI Q45 offers a comfortable and powerful driving experience, it is not without its drawbacks. The engine, transmission, and suspension have known issues that can be expensive to repair. Electrical problems, such as alternator failure, can also be inconvenient and costly. However, some interior and exterior issues, such as sunroof switch malfunction and chrome trim peeling, are less severe and may not require immediate attention. Nonetheless, potential buyers should be aware of these potential issues and factor them into their purchasing decision.