1994 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 With a price of A$140,000, the Q45 sold poorly and the brand was subsequently withdrawn from the market in 1996.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 1994 Infiniti Q45 problems
The 1994 Infiniti Q45 has been subject to various issues and complaints reported by owners. Here are some common problems based on the information gathered from different sources:
- Electronic Issues: Owners have reported electronic issues with the 1994 Q45, including problems with the transmission, such as strain in forward gears and unusual sounds from the pump, indicating potential mechanical strain.
- Maintenance Costs: Some owners have highlighted high maintenance costs associated with the Q45, including expenses related to chain guides, valve covers, hoses, and other components, impacting the overall ownership experience and cost.
These issues reflect challenges faced by owners of the 1994 Infiniti Q45, ranging from reliability concerns to electronic and maintenance issues that have affected the overall ownership experience of this particular model year.
How much is a 1994 Q45 Infiniti?
How much is a 1994 INFINITI Q45 worth? The value of a used 1994 INFINITI Q45 ranges from $18 to $1,016, based on vehicle condition, mileage, and options.
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 the Q45?
INFINITI Q45 at a Glance
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.
1994 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:
- Air bags problems
- Electrical system problems
- Fuel system problems
- Gasoline problems
- Suspension problems
The graph below shows statistics for all 1994 Infiniti Q45 vehicle components and the number of complaints received.
Latest 25 complaints 1994 Infiniti Q45
The NHTSA has received 36 complaints about various vehicle components related to the 1994 Infiniti Q45. Below are the 25 most recent complaints reported for 1994 Infiniti Q45 vehicles.
AIR BAGS,SEAT BELTS PROBLEM
- Date Of Incident: 2003-07-19
- VIN: JNKNG01D8RM
- Components: AIR BAGS,SEAT BELTS
- Summary: THE CONSUMERS WIFE SUDDENLY SAW THE AIR BAG LIGHT BLINKING, FOLLOWED BY THE BLINKING OF THE SEAT BELT LIGHT, THEN NOTICED SMOKE COMING FROM THE HOUSING OF THE SEAT BELT. THE DEALER WAS CONTACTED AND THEY STATED THE VEHICLE WAS OUT OF WARRANTY. *AK THE SEAT BELT TIGHTENED AFTER THE BLAST AND KNOCKED THE WIND OUT OF THE CONSUMERS DAUGHTER IN THE PASSENGER SEAT. THE DEALER REFUSED TO CORRECT THE SAFETY HAZARD. *SCC THE DEALER INFORMED THE CONSUMER THE VEHICLE NEEDED A BRAKE JOB. WHEN THE VEHICLE WAS TAKEN TO HIS LOCAL MECHANIC, THE MECHANIC STATED IT WAS UNWARRANTED. *PH *JB
AIR BAGS PROBLEM
- Date Of Incident: 2003-07-16
- VIN: JNKNG01DXRM
- Components: AIR BAGS
- Summary: CONSUMER WAS TRAVELING IN REVERSE WHEN THE DRIVER'S "SIDE" AIR BAG DEPLOYED WITHOUT WARNING. DEALER DIAGNOSED THAT MOISTURE IN THE CONTROL MODULE CAUSED THE MODULE TO SHORT CIRCUIT RESULTING IN THE BAG DEPLOYING.
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2002-08-18
- VIN: JNKNG01D3RM
- Components: ELECTRICAL SYSTEM
- Summary: MY WIFE STARTED THE ENGINE IN A CHURCH PARKING LOT AND THE BATTERY LITERALLY EXPLODED, SPREADING BATTERY ACID UNDER THE HOOD. BESIDES THE BATTERY, THE ONLY VISIBLE DAMAGE WAS A BADLY PITTED FAN. THE BATTERY WAS A REPLACEMENT WHICH HAD BEEN INSTALLED BY COMPETITION INFINITI, SMITHTOWN, NY, 2 YEARS AND APPROXIMATELY 20,000 MILES EARLIER. AFTER SOME DISCUSSION, THE DEALERSHIP FINALLY AGREED TO PAY FOR A REPLACEMENT BATTERY AND FAN. I WAS TOLD THAT THERE WAS NO FURTHER DAMAGE UNDER THE HOOD. AN EMPLOYEE VOLUNTEERED THAT THIS WAS THE SECOND EXPLODING BATTERY THEY HAD SEEN IN THE RECENT PAST. NO FURTHER INFORMATION WAS GIVEN TO ME ON THIS POTENTIALLY DANGEROUS SITUATION.*AK
VISIBILITY PROBLEM
- Date Of Incident: 2001-10-05
- Fire: 1
- VIN: JNKNG01D9RM
- Components: VISIBILITY
- Summary: THERE WAS AN APPARENT ELECTRICAL SHORT WITHIN THE INTERIOR FRAME NEXT TO THE PASSENGER WINDOW. I'M NOT SURE EXACTLY WHEN THE SHORT OCCURRED BUT THE INTERIOR LINING ON THE PANEL HAS THREE BURN MARKS ABOUT TWO INCHES IN DIAMETER. THE INTERIOR LIGHTS HAVE NOT WORKED SINCE THIS INCIDENT. I TOOK MY CAR TO THE DEALER WHOM I PURCHASED THE CAR AND THEIR SERVICE ADVISOR, DALE GUNTER STATED THEY WOULD NOT REPAIR THE ELECTRICAL DEFECT OR BURNED PANEL UNDER WARRANTY. I FEEL THE FUSE CONTROLLING THE WIRE THAT SHORTED SHOULD HAVE BURNED OUT BEFORE THE ELECTRICAL FIRE COULD BURN THE INTERIOR PANEL. ANY ASSISTANCE YOU CAN PROVIDE ME WILL BE GREATLY APPRECIATED. THANK YOU FOR YOUR HELP.
ELECTRICAL SYSTEM,AIR BAGS PROBLEM
- Date Of Incident: 2001-10-29
- VIN: JNKNGD1DORM
- Components: ELECTRICAL SYSTEM,AIR BAGS
- Summary: AIR BAG LIGHT COMES ON AND STAYS ON, CONTACTED DEALER, AND THE DEALER WAS NOT WILLING TO DO ANYTHING.*AK BATTERY EXPLODED AND VEHICLE HAD ELECTRICAL CONTROL PROBLEMS. *YH
AIR BAGS PROBLEM
- Date Of Incident: 2000-12-26
- Crash: 1
- VIN: FILL IN
- Components: AIR BAGS
- Summary: WHILE TRAVELING 55 MPH VEHICLE WAS BROADSIDED, AND NEITHER AIRBAG DEPLOYED. *AK
FUEL SYSTEM, GASOLINE PROBLEM
- Date Of Incident: 2000-12-08
- VIN: JNKNG01D9RM
- Components: FUEL SYSTEM, GASOLINE
- Summary: THE FUEL INJECTORS JUST KEEP GOING BAD, EVEN DOING ALL SCHEDULED MAINTENCE WORK ON TIME AND USING ONLY THE INSTRUCTED PREMIUM FUEL FROM EITHER AMOCO OR MOBILE. I JUST DON'T UNDERSTAND IT. *AK
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2000-11-29
- Fire: 1
- VIN: JNKNG01D9RM
- Components: ELECTRICAL SYSTEM
- Summary: WHILE DRIVING VEHICLE, HEARD POPPING SOUNDS FROM REAR, SMELLED SMOKE AND ENGINE SHUT DOWN. VEHICLE FILLED WITH SMOKE BY TIME STOPPED VEHICLE. ELECTRICAL FIRE BURNED AREA BETWEEN TRUNK AND BACK SEAT, AROUND GAS TANK ON PASSENGER SIDE.*AK
SUSPENSION PROBLEM
- Date Of Incident: 2000-08-01
- VIN: JNKNG01D8RM
- Components: SUSPENSION
- Summary: BOTH TENSION ARMS ARE LEAKING THICK FLUID AT FRAME MOUNT LOCATION. APPEARS THAT LOSS OF FLUID COULD CAUSE LOSS OF STABILITY AND POSSIBLE LOSS OF VEHICLE CONTROL. UNIT IS NOT SERVICABLE.
SUSPENSION,ENGINE AND ENGINE COOLING,FUEL SYSTEM, GASOLINE,POWER TRAIN PROBLEM
- Date Of Incident: 1999-11-01
- VIN: JNKNG0AD2RM
- Components: SUSPENSION,ENGINE AND ENGINE COOLING,FUEL SYSTEM, GASOLINE,POWER TRAIN
- Summary: THIS IS A LEMON WHICH NOW THREATENS PUBLIC SAFETY. INFINITI DOESN'T SEEM TO CARE
SUSPENSION,ENGINE AND ENGINE COOLING,FUEL SYSTEM, GASOLINE,POWER TRAIN PROBLEM
- Date Of Incident: 1999-11-01
- VIN: JNKNG0AD2RM
- Components: SUSPENSION,ENGINE AND ENGINE COOLING,FUEL SYSTEM, GASOLINE,POWER TRAIN
- Summary: THIS IS A LEMON WHICH NOW THREATENS PUBLIC SAFETY. INFINITI DOESN'T SEEM TO CARE
FUEL SYSTEM, GASOLINE PROBLEM
- Date Of Incident: 2024-11-24
- VIN: JNKNG01D2RM
- Components: FUEL SYSTEM, GASOLINE
- Summary: FILLER CAP WILL NOT SEAL, CAUSING FUEL TO BLOWOUT THROUGH THE FILLER NECK. DEALER HAS INSPECTED VEHICLE.*AK
ENGINE AND ENGINE COOLING PROBLEM
- Date Of Incident: 1998-04-01
- VIN: JNKNG01D5RM
- Components: ENGINE AND ENGINE COOLING
- Summary: ENGINE SHUDDERS AND THERE IS NO PRIOR WARNING. WHEN THE VEHICLE SHAKES THERE IS NO POWER FOR TEN SECONDS, AND THEN PICKS UP AGAIN. DEALERSHIP IS AWARE OF THE PROBLEM. *AK
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2000-01-02
- Components: ELECTRICAL SYSTEM
- Summary: FRONT LOW LIGHT WAS NOT WORKING. TOOK TO DEALER TO REPLACE BULB. THEY SAID NEW BULB WAS MELTED AND DESTROYED SWITCH. REPLACED SWITCH - STILL WOULDN'T WORK. THEY FOUND SHORT IN WIRING AFTER 7 DAYS OF SEARCHING. THIS CAUSED THE WIRING TO MELT THE BULB AND SWITCH. POSSIBLE FIRE HAZARD.
FUEL SYSTEM, GASOLINE PROBLEM
- Date Of Incident: 1999-09-27
- VIN: JNKNG01D0RM
- Components: FUEL SYSTEM, GASOLINE
- Summary: I HAVE DISCUSSED THIS WITH ANOTHER Q45 OWNER WHO HAS HAD THIS SIMILAR PRBLEM. ALL HIS FUEL INJECTION ASSEMBLY'S HAVE BEEN REPLACED. SOME MORE THAN ONCE. THE COST TO REPLACE IS AROUND $480-500 INCLUDING LABOR. *AK
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2024-11-24
- Components: ELECTRICAL SYSTEM
- Summary: KEY CAN BE PULLED OUT OF IGNITION WHILE VEHICLE IS IN DRIVE, CAUSING VEHICLE TO ROLL, RESULTING IN A SAFETY HAZARD. *AK
UNKNOWN OR OTHER PROBLEM
- Date Of Incident: 1999-11-12
- VIN: JNKNG01D5RM
- Components: UNKNOWN OR OTHER
- Summary: NO SUMMARY LISTED FOR ABOV EVEHICLE. *AK
FUEL SYSTEM, GASOLINE,TIRES PROBLEM
- Date Of Incident: 1998-07-22
- VIN: JNKNG01DXRM
- Components: FUEL SYSTEM, GASOLINE,TIRES
- Summary: THE VEHICLE WAS BOUGHT UNDER THE CERTIFIED PRE-OWNED INFINITI PROGRAM, IN 1ST 15 MONTHS OF OWNERSHIP THE CAR HAS BEEN IN THE SHOP 15 TIMES, 8 TIMES FOR ONE THING ALONE. THE CAR HAS IS NOT SAFE AS IT STALLS AT TIMES ENTERING OR ACCELERATING INTO THE FLOW OF TRAFFIC, LEAVING YOU HALF IN AND HALF OUT OF, SAY AN INTERSECTION. INFINITI WANTS TO BUY THE CAR BACK BUT AT A LESS THAN REASONABLE PRICE, THEREBY BEING ABLE TOO RESELL THIS CAR AT A PROFIT TO SOME POOR CONSUMER. ANY HELP WOULD BE GREATLY APPRECIATED.
VEHICLE SPEED CONTROL PROBLEM
- Date Of Incident: 1999-06-11
- VIN: JNKNG01D1RM
- Components: VEHICLE SPEED CONTROL
- Summary: REPEATED PROBLEMS WITH LOW LEVEL IDLE STALLING ON VEHICLE. *AK
VEHICLE SPEED CONTROL PROBLEM
- Date Of Incident: 1999-06-11
- VIN: JNKNG01D1RM
- Components: VEHICLE SPEED CONTROL
- Summary: REPEATED PROBLEMS WITH LOW LEVEL IDLE STALLINH ON VEHICLE. *AK
STEERING PROBLEM
- Date Of Incident: 1999-01-23
- VIN: JNKNG01D5RM
- Components: STEERING
- Summary: NO SUMMARY LISTED FOR THIS VEHICLE. *AK
AIR BAGS PROBLEM
- Date Of Incident: 1999-01-17
- Number Of Injuries: 2
- Crash: 1
- VIN: JNKNGO1D5RM
- Components: AIR BAGS
- Summary: A VEHICLE MADE AN ILLEGAL U-TURN IN FRONT OF MY VEHICLE AND I STRUCK HIM IN THE LEFT REAR, CAUSING HIM TO DO A COMPLETE 180 DEGREE TURN, THE FORCE WAS IN MY CENTER FRONT. THE AIRBAGS ON NEATHER SIDE OF MY VEHICLE DEPLOYED ,ADDING TO THE INJURIES OF BOTH PASSENGER AND DRIVER. AT THIS TIME THE COMBINED COST IS IN EXCESS OF 4000 DOLLARS AND CLIMING. IS THERE A HISTORY OF THIS FAILURE? IF SO PLEASE ADVISE ME OF WHAT CORRECTIVE STEPS NEED TO BE TAKEN, AND ANY OTHER INFORMATION WHICH MIGHT BE HELPFUL. MY FAX # 816 671 0092. *AK
FUEL SYSTEM, GASOLINE PROBLEM
- Date Of Incident: 1998-03-01
- VIN: JNKNG01D3RM
- Components: FUEL SYSTEM, GASOLINE
- Summary: CONCERNED ABOUT THE POSSIBILITY OF AN ACCIDENT WWHICH COULD RESULT AS A RESULT OF THE SUDDEN LOST OF POWER WHICH COCCURS WHEN A FUEL INJECTION FAILS.
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 1997-03-10
- Fire: 1
- VIN: JNKNGOLD9RM
- Components: ELECTRICAL SYSTEM
- Summary: VEHICLE FIRE DUE TO ELECTRICAL MALFUNCTIONING.
ELECTRICAL SYSTEM PROBLEM
- Date Of Incident: 2024-11-24
- Fire: 1
- Components: ELECTRICAL SYSTEM
- Summary: VEHICLE WAS PARKED FOR SEVEN HOURS AND SUDDENLY SELF IGNITED. FIRE DEPARTMENT DETERMINED THE FIRE AS AN EQUIPMENT MALFUNCTION WITHIN THE BATTERY AREA UNDERNEATH THE HOOD. *AK
Negative 1994 Infiniti Q45 car reviews
Positive 1994 Infiniti Q45 car reviews
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This is a great luxury car with a lot of power (4.5 287HP V8 engine). I've owned my car for over 150k miles and have never had any issues with it other than regular maintenance. While it may not be as smooth as a BMW, it still has plenty of spunk. Overall, I believe it's a fantastic automobile.
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This is the first large vehicle I've owned, other than an old Mercury Marquis. I do have one misgiving, which is a sense of guilt about its poor mileage. My previous car was a Toyota Camry, which gave me better than 35 mpg.
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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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This is, without a doubt, the best car I've ever owned. The combination of a great engine and a fantastic interior are the standout features of this car. While some may be put off by the exterior styling, I personally love the classic Q's. Even after driving it for 138,000 miles, I still enjoy cruising around in it. The only downside is that it doesn't handle well in the snow, even with the traction control option.
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You've got yourself an excellent big car with the Touring package! It drives like a high-performance car, especially with Michelin tires. And the best part? It's very reliable!
Additional sources
More sources of information about 1994 Infiniti Q45 problems:
INFINITI Q45 Problems and Complaints - 6 Issues
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Mar 11, 2005 ... Car: Black 1994 Infiniti Q45 Turbo, Pearl White 2014 Maxima Sport. Post by sijoko » Sat Mar 12, 2005 3:27 am. I have owned my 94 Q since Dec ...
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Jul 18, 2007 ... common problem. Jump to Latest ... 2006 GSXR 600 *2003 CBR600RR *2000 Jeep TJ *1998 Infiniti Q45 ... 1994 FZR 600 1993 CBR 600F2. Save Share.
Other years of Infiniti Q45
Are you having problems with your 1994 Infiniti Q45?
Geovanny Berge 2024-10-20
The Q has been a great vehicle with impressive performance, boasting 278 horsepower. Despite experiencing some issues such as transmission failure, control arm replacements, door lock malfunctions, and compression problems resulting in head replacements, I remain confident in its overall quality. It is worth noting that some of these issues occurred after the warranty had expired. While my '89 Nissan Maxima may have been more reliable, the Q's performance is unmatched.
Zack Kunde 2024-10-06
At 120,000 KM, unfortunately, the transmission failed and required a $4,600 repair job. Later, at 130,000 KM, the fuel pump also needed to be replaced, costing $950. Unfortunately, at 140,000 KM, several components, including all injectors, the fuel pump again, regulator, O2 sensors, electric antenna, door sensors, and others, failed within four weeks of each other, resulting in a $5,000 repair cost. It's important to note that some Infiniti models, including this flagship car, have experienced major defects. If you're considering purchasing a model from before 1995, it's important to be aware of the potential for significant repair costs. Many Q45 owners have reported similar issues, and the dealer service manager has confirmed that some models have had problems. Thank you for your attention to this matter.
Caleb Pollich 2024-09-09
I bought this car as a surprise for my wife. The first two months were great, but then we started experiencing some issues. We had to replace the valve cover gaskets, which took two weeks and cost $900.00. After that, we had to replace the gas cap twice in just 10,000 miles of ownership because the car kept stalling. We also had some minor electrical issues, but the final straw was the fuel injection. At that point, we decided to get rid of the car.