1996 Infiniti Q45 problems
The Infiniti Q45 is a full-size luxury sedan manufactured by Nissan for its Infiniti brand, spanning model years 1989-2006 and three design generations.
The first generation Q45 (1989–1999) was based on the Nissan President; the second generation (1997–2000) and third generation (2002–2006) were based on Nissan's JDM Nissan Cima. Marketing of the Q45 ended after MY 2006.
First generation (G50; 1989–1996)
The first generation Q45 came to market in 1989 as a 1990 model with a high-output 4.5 L VH45DE DOHC 32V V8 engine rated at 278 hp (207 kW) and 292 lb⋅ft (396 N⋅m) in North American trim. All Q45s included a viscous limited-slip differential and a multi-link suspension at the front and rear. At launch, the US$38,000 (equivalent to $93,000 in 2023) sedan had a single option, the Touring Package, which added Nissan's Super HICAS four-wheel steering system, a decklid spoiler, and alloy wheels.
In Japan, it was marketed as the Nissan Infiniti Q45, and was exclusive to Nissan Prince Store locations, as its platform twin the President was exclusive to Nissan Store locations. The G50 chassis continued in production in Japan until 2002 as the President in both regular and extended wheelbase versions. The Japanese version had many options that never appeared on the North American G50.
The contemporary upstart luxury marque Lexus (Toyota) had managed to challenge the establish dominance of European full-size luxury cars with the LS 400, so the Q45 seemed poised for similar success with comparable specifications and price to the LS 400 while featuring more emphasis upon handling. However, the Q45 did not achieve similar sales volumes, which was attributed to the car's unconventional styling, particularly the grille and lack of interior woodgrain or chrome trim. There was also an unusual advertising campaign which did not include actual photos or information about the car. By 1995, the price had risen to US$54,000 (equivalent to $108,000 in 2023), slowing sales.
In 1993 the Infiniti brand was launched in Australia with the sole model on offer being the Q45. With a price of A$140,000, the Q45 sold poorly and the brand was subsequently withdrawn from the market in 1996.
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Common 1996 Infiniti Q45 problems
The Infiniti Q45, a luxury sedan produced by Nissan's luxury division, has been praised for its performance and design. However, like any vehicle, it has faced its fair share of issues throughout the years, particularly in the 1996 model. Here are some of the most common problems reported by owners of the 1996 Infiniti Q45:
- Drivability Issues Due to Failing Crankshaft Angle Sensor: One of the most common problems with the 1996 Infiniti Q45 is drivability issues caused by a failing crankshaft angle sensor. This issue can lead to rough idling and stalling, making the vehicle difficult to drive. The crankshaft angle sensor is responsible for providing information about the crankshaft's position and speed to the engine control module (ECM). When this sensor fails, the ECM may not be able to properly control the engine, resulting in drivability issues.
- Quality and Reliability Issues: The 1996 Infiniti Q45 has faced criticism for its quality and reliability issues. Some owners have reported problems with cheaply made controls and parts that are not appropriate for a car of its class. These issues can affect the overall driving experience and lead to additional maintenance costs.
- Excessive Depreciation: The 1996 Infiniti Q45 has been known to suffer from excessive depreciation, which can be attributed to poor reliability, high maintenance costs, and high replacement part costs for the first-generation Q45.
- Limited Rear Leg Room: Some owners have reported that the 1996 Infiniti Q45 has substantially less rear leg room compared to other luxury sedans in its class, which can affect passenger comfort during long drives.
- Complex Powertrain: The 1996 Infiniti Q45 features a complex powertrain, with an aluminum V-8 engine rated at 278 horsepower and 292 pound-feet of torque, four-speed automatic transmission, and computer-controlled electronic fuel injection. While this powertrain offers impressive performance, it can also be prone to issues, particularly if not properly maintained.
It is important to note that not all 1996 Infiniti Q45s will experience these issues, and many owners have reported positive experiences with the vehicle. However, these common problems are worth considering when purchasing or maintaining a 1996 Infiniti Q45.
What happened to the INFINITI Q45?
With a price of A$140,000, the Q45 sold poorly and the brand was subsequently withdrawn from the market in 1996.
What engine is in a INFINITI Q45?
The first generation Q45 had a 4.5-liter DOHC 32-valve aluminium-alloy V8 engine, producing 278 horsepower, which took it from 0-60 in 7.2 seconds – truly outstanding at the time.
Why is my Q45 not starting?
The most common reasons an INFINITI Q45 won't start are a dead battery, an alternator problem, or failed starter.
How fast is a Q45?
Performance
| 0 - 60 mph | 5.9 s |
|---|---|
| 0 - 100 mph | 14.6 s |
| 1/4 mile | 14.6 s @ 100.0 mph |
| Top speed | 238 kph (148 mph) |
1996 Infiniti Q45 car problems categorized by type of issue
After analyzing all complaints sent to the NHTSA and researching popular Infiniti Q45 problems, we found that the most common problems with these 2023 model year vehicles are:
- Suspension problems
- Air bags problems
- Unknown or other problems
- Seats problems
- Visibility problems
The graph below shows statistics for all 1996 Infiniti Q45 vehicle components and the number of complaints received.
1996 Infiniti Q45 complaints
The NHTSA has received 8 complaints about various vehicle components related to the 1996 Infiniti Q45.
SUSPENSION PROBLEM
- Date Of Incident: 1999-09-09
- Components: SUSPENSION
- Summary: WHILE IN MOTION, AFTER CONSTANT FREEWAY DRIVING A HARSH GRINDING NOISE APPEARS IN THE FRONT LEFT SUSPENSION AREA. A RASPING, GRINDING MEAL ON METAL NOISE HAPPENS IN VARIOUS DEGREES OF LOUDNESS. THE DEALER HAS BEEN UNABLE TO REPLICATE THE NOISE. *JG
UNKNOWN OR OTHER PROBLEM
- Date Of Incident: 2024-11-24
- Components: UNKNOWN OR OTHER
- Summary: VEHICLES CHECK ENGINE LIGHT ILLUMINATES FREQUENTLY. THREE (3) TIMES IN SEVEN (7) MONTHS THIS HAS HAPPENED. *JG
SEATS PROBLEM
- Date Of Incident: 2000-12-26
- VIN: JNKNG01D2TM
- Components: SEATS
- Summary: CONSUMER WAS INSIDE OF GARAGE AND VEHICLE WAS PARKED. HE WENT TO TURN ON VEHICLE, AND DRIVER'S SIDE SEAT FLIPPED UP, CAUSING CONSUMER TO BE TRAPPED UNTIL HIS WIFE CAME OUT TO RELEASE HIM. CONSUMER TOOK VEHICLE TO THE DEALERSHIP, MECHANIC TOLD HER THAT SEAT MODULAR MEMORY WAS ERASED FROM MEMORY BANK.*AK THE CONSUMER STATES THAT ERASING OF SEAT MODULAR MEMORY COULD CAUSE A SERIOUS ACCIDENT IF IT HAPPENS WHILE THE VEHICLE WAS BEING DRIVEN. *YH
AIR BAGS PROBLEM
- Date Of Incident: 1997-03-05
- VIN: JNKNG01D1TM
- Components: AIR BAGS
- Summary: AIR BAG ECM FAILED CAUSING INDICATOR TO FLASH.
VISIBILITY PROBLEM
- Date Of Incident: 1996-05-01
- VIN: JNKNG01D1TM
- Components: VISIBILITY
- Summary: POWER WINDOW FAILED CAUSING IT NOT TO GO UP OR DOWN.
SUSPENSION PROBLEM
- Date Of Incident: 1996-10-30
- VIN: JNKNGO1D7TM
- Components: SUSPENSION
- Summary: SHOCK ABSORBER FAILED.
AIR BAGS PROBLEM
- Date Of Incident: 2024-11-24
- Components: AIR BAGS
- Summary: DUE TO MEDICAL REASONS, CONSUMER WANTS TO DISCONNECT THE AIR BAGS IN HIS VEHICLE. HAS EYE PROBLEMS AND IS AFRAID THAT AIR BAG DEPLOYMENT COULD LEAD TO BLINDNESS. *AK
EXTERIOR LIGHTING PROBLEM
- Date Of Incident: 2024-11-24
- Components: EXTERIOR LIGHTING
- Summary: REAR WINDOW TAIL LIGHTCOMES ON AS A HIGH INTENSITY LIGHT/ HAS NO LENS, BRIGHT LIGHT CAUSED LOSS OF PARTIAL VISIBILITY. *AK
Negative 1996 Infiniti Q45 car reviews
Positive 1996 Infiniti Q45 car reviews
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This is such an amazing car! I was able to get mine for a steal at $10,500 with only 43,000 miles on it last year, even though the original list price was $50K. While it can be a bit pricey to maintain, both at the gas station and in the garage, due to its terrible mileage and need for premium fuel, it's definitely worth it. The weight of the car can cause the tires and brakes to wear out more quickly, but that's a small price to pay for the luxury and reliability that this car provides. Even though my Q45a (active suspension) is no longer working and would cost $5,000 to fix, I still highly recommend this car. You'll look and feel great driving it!
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Sounds like you've taken good care of your car with regular repairs and maintenance, even with 140,000 miles on it. It's a shame that it hasn't been performing as well as it used to, especially considering its original price. However, it's great to hear that the car still has a lot of upper end power and can reach high speeds smoothly. Thanks for sharing your experience!
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I'm not sure why someone would choose a Toyota over the Q45. However, the guys at 'Click and Clack' highly recommend it, and it's a great buy. The Q45 has plenty of power and comfort, and all models come loaded with standard features.
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I purchased this car used with 110,000 miles, and she remains as tight and as solid as a new car. The power plant still amazes me and has a wonderfully 'throaty' sound when put to the test. The pneumatically assisted 'active' suspension eliminates body roll and nose diving for an incredibly stable drive that's a pleasure on curvy roads. Braking performance is superior.
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You got yourself a great deal on the car for only $2500! The engine runs smoothly and has a nice throaty sound at full throttle. Although the car is on the heavier side at 4200 lbs, a new ECU can help improve its performance. It's impressive that you consistently get 26 mpg with a V8 engine. While the front end styling and factory wheels may not be the most inspiring, they still get the job done.
Additional sources
More sources of information about 1996 Infiniti Q45 problems:
INFINITI Q45 Problems and Complaints - 6 Issues
Drivability Issues Due to Failing Crankshaft Angle Sensor · Check Engine Light Due to Failed EVAP Purge Control Valve · Fuel Injector Problems are Common · Lack of ...
1996 Infiniti Q45 - Engine issues - Maintenance/Repairs - Car Talk ...
Nov 30, 2021 ... Looses revs when stopped at lights and also jerks after I do about60 kms.Both problems are intermittent.Also blowing black sooty smoke ...
Q&A: Common Problems with 1999 Infiniti Q45 - P1320 Code
Nov 24, 2020 ... ... 1996 and together we're going to solve this issue. as you probably know the most common cause that will trigger the P1320 code is the ...
Q45 Reliability problems and excessive depreciation - Nissan Forum
Mar 11, 2005 ... I expect it will be several years - if ever - before Infiniti is able to repair its reputation as a result of the early Q45's. Most people ...
Infiniti Q45 2003: Common Problems & DTC P0128 Explained
May 27, 2016 ... Ok, here's a problem I've been having with my 2003 Q45, either driving at a very low velocity, or having just started - Answered by a ...
Other years of Infiniti Q45
Are you having problems with your 1996 Infiniti Q45?
Brayan Will 2024-05-24
I bought this car as a surprise for my wife and the first two months were great. However, we did encounter some issues with the car such as having to replace the valve cover gaskets which took two weeks and cost $900. We also had to replace the gas cap twice within 10,000 miles of ownership due to stalling issues. Additionally, we experienced some electrical problems, but the final issue was with the fuel injection. Unfortunately, we decided to get rid of the car at that point.