1994 Mitsubishi Diamante problems
The Mitsubishi Diamante is an automobile that was manufactured by Mitsubishi Motors from 1990 to 2005.
The first series was a hardtop introduced to the public at the Tokyo Motor Show in 1989. It went on sale in Japan exclusively in May 1990 and won that year's Japan Car of the Year award. It was created by splicing an extra 6.6 cm (2.6 in) right down the middle of the Mitsubishi Galant, which itself had won the Japan Car of the Year award in 1987. The Diamante's platform was also used for the sporty Mitsubishi 3000GT.
The name Diamante was derived from the Spanish, Portuguese, and Italian word for "diamond" and was adopted also as homage to the Mitsubishi badge which is composed of three diamonds. In Japan, this vehicle was sold at a specific retail chain called Car Plaza.
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Common 1994 Mitsubishi Diamante problems
The Mitsubishi Diamante, produced between 1992 and 2005, is known for its stability, cruising capabilities, and a sense of safety and protection. However, as with any vehicle, the 1994 Diamante has faced a number of common problems reported by owners.
- Heater Core Leaks: The heater core, responsible for providing heat to the cabin, can develop leaks, causing antifreeze to leak onto the passenger side floor. This issue may be more prevalent in colder climates, where the heater core is used more frequently. It is unclear if this was a manufacturing defect or if it affected a significant number of vehicles.
- Fuel Pump Failure: Some 1994 Diamante owners have reported fuel pump issues, which can lead to problems with starting the vehicle or maintaining a consistent fuel pressure. This issue can be intermittent or persistent, and it may require replacement of the fuel pump to resolve.
- Automatic Transmission Failure: Premature automatic transmission failure has been reported by some Diamante owners, which can result in the vehicle being unable to shift gears or experiencing erratic shifting. This issue may be more prevalent in higher mileage vehicles and can be costly to repair, as it may require a complete transmission replacement.
- Check Engine Light: The check engine light may illuminate due to a loose gas cap or other issues related to the engine management system. In some cases, simply tightening the gas cap may resolve the issue, while in other cases, a more in-depth diagnosis may be required to identify the root cause.
- Rotor and Pad Replacement: The front rotors may require replacement due to excessive grinding or wear, particularly if the vehicle has been driven for an extended period with worn-out brake pads. This can be a time-consuming and potentially expensive repair, particularly if the rotors are not replaced in a timely manner.
These are just a few of the common issues reported by 1994 Mitsubishi Diamante owners. It is important to note that not all vehicles will experience these problems, and regular maintenance and inspections can help identify and address potential issues before they become major repairs.
What engine is in a Mitsubishi Diamante?
The Diamante was marginally larger with improved headroom. It was powered by several engines: the base engine was a 2.5-liter MVV (lean burn) V6, followed by a number of 2.5 and 3.5-liter variants, the 2.5-liter engine sported 175 hp and the 3.5-liter engine boasted 210 hp (160 kW).
What size engine is in the 2004 Mitsubishi Diamante?
3.5 L
Used 2004 Mitsubishi Diamante - Specs & Features
| Engine | |
|---|---|
| Base engine size | 3.5 L |
| Cylinders | V6 |
| Base engine type | Gas |
| Horsepower | 205 hp @ 5,000 rpm |
Why did Mitsubishi discontinue the Diamante?
The Diamante was a popular car among buyers who were looking for a comfortable and stylish luxury sedan. It was not as popular as some rivals, such as the Toyota Camry and the Honda Accord, but it was a good value for money car. The Diamante was discontinued in 2005 due to declining sales.
Is Mitsubishi a good engine?
It's a reputation that Mitsubishi has carried through to this day, with its SUVs, pickups, and commercial trucks still favorites with buyers all over the globe. The engines of Mitsubishi vehicles are, in general, a safe bet, with many racking up hundreds of thousands of miles of service with minimal issues.
1994 Mitsubishi Diamante car problems categorized by type of issue
After analyzing all complaints sent to the NHTSA and researching popular Mitsubishi Diamante problems, we found that the most common problems with these 2023 model year vehicles are:
- Air bags problems
- Service brakes problems
- Hydraulic problems
- Seat belts problems
- Tires problems
The graph below shows statistics for all 1994 Mitsubishi Diamante vehicle components and the number of complaints received.
Latest 25 complaints 1994 Mitsubishi Diamante
The NHTSA has received 34 complaints about various vehicle components related to the 1994 Mitsubishi Diamante. Below are the 25 most recent complaints reported for 1994 Mitsubishi Diamante vehicles.
AIR BAGS PROBLEM
- Date Of Incident: 2015-11-24
- VIN: JA3AP47HXRY
- Components: AIR BAGS
- Summary: TL* THE CONTACT OWNS A 1994 MITSUBISHI DIAMANTE. WHILE DRIVING AT VARIOUS SPEEDS, THE AIR BAG WARNING LIGHT ILLUMINATED. THE FAILURE RECURRED WHENEVER THE VEHICLE WAS IN OPERATION. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 100,000.
SERVICE BRAKES, HYDRAULIC PROBLEM
- Date Of Incident: 2024-11-24
- Components: SERVICE BRAKES, HYDRAULIC
- Summary: INTERMITTENT BRAKE PROBLEM. DEALERSHIP WAS UNABLE TO FIND THE CAUSE OF THE PROBLEM. *AK
SERVICE BRAKES, HYDRAULIC PROBLEM
- Date Of Incident: 2024-11-24
- Components: SERVICE BRAKES, HYDRAULIC
- Summary: INTERMITTENT BRAKE PROBLEM. DEALERSHIP CANNOT FIND THE CAUSE OF THE PROBLEM. *AK
TIRES PROBLEM
- Date Of Incident: 2002-12-24
- Components: TIRES
- Summary: CONSUMER STATES PURCHASED NEW TIRE ON 12/6/02. ON 12/24/02 WHILE DRIVING TIRE BLEWOUT CAUSING EXTENSIVE DAMAGE TO VEHICLE. TIRE INFO: B.F. GOODRICH PH P205/65R15 RIGHT FRONT TIRE 30 MILES ON TIRE DAMAGE TO VEHICLE TIRE NOT ORIGINAL
ENGINE AND ENGINE COOLING PROBLEM
- Date Of Incident: 2001-04-02
- VIN: JA3AP47HORY
- Components: ENGINE AND ENGINE COOLING
- Summary: PURCHASED WITH 14,000 FROM DEALER, HAD A MAJOR ENGINE FALURE DUE TO PISTON RING WEAR/FALURE. HAD IT REPAIRED 10,000 AGO MITS PAID FOR PARTS, I PAID $1,200 FOR LABOR. NOW 10,000 MILES LATER I HAVE THE SAME PROBLEM AGAIN. THIS IS MY 2ND MITS CAR I HAVE HAD THE SAME PROBLEM WITH THAT HAD TO BE REBUILT.
VEHICLE SPEED CONTROL PROBLEM
- Date Of Incident: 2002-05-10
- VIN: PLEASE FILL
- Components: VEHICLE SPEED CONTROL
- Summary: WHILE DRIVING ON THE HIGHWAY VEHICLE STOPPED ACCELERATING. VEHICLE HAD TO BE TOWED. *AK
ENGINE AND ENGINE COOLING PROBLEM
- Date Of Incident: 2001-01-06
- VIN: 6MMAC4955RT
- Components: ENGINE AND ENGINE COOLING
- Summary: THE TIMING BELT FAILED WHILE DRIVING CAUSING DAMAGE TO THE ENGINE. NLM
SEAT BELTS PROBLEM
- Date Of Incident: 2024-11-24
- VIN: 6MMAC4955RT
- Components: SEAT BELTS
- Summary: THE SEAT BELT DOES NOT RETRACT WHEN IT IS UNBUCKLED. NLM
SERVICE BRAKES, HYDRAULIC PROBLEM
- Date Of Incident: 1998-06-17
- VIN: JA3AP47H0RY
- Components: SERVICE BRAKES, HYDRAULIC
- Summary: ROTORS WERE TURNED ON 6/17/98 DUE TO BEING WARPED, HOWEVER 6 MONTHS LATER ROTORS EXPERIENCED THE SAME PROBLEM, BRAKES PULSATE WHEN BRAKING, A MECHANIC ADVISED CONSUMER TO REPLACE, HOWEVER IT'S VERY EXPENSIVE TO DO SO. *SLC
POWER TRAIN PROBLEM
- Date Of Incident: 1997-06-16
- VIN: JA3AP57J1RY
- Components: POWER TRAIN
- Summary: TRANSMISSION JUMPS OUT OF GEAR. DEALER HAS REPLACED PARTS OF TRANSMISSION TWICE, AND IT IS SLIPPING AGAIN. *AK *SLC
EXTERIOR LIGHTING PROBLEM
- Date Of Incident: 2000-05-17
- VIN: 6MMAC49S4RT
- Components: EXTERIOR LIGHTING
- Summary: WHILE DRIVING AT NIGHT AND TRYING TO DIM LIGHTS, EVERY LIGHT WENT OUT. TOOK VEHICLE TO DEALER, AND THEY SAID HEADLIGHT RELAY WENT OUT. DEALER REPLACED RELAY. 10,000 MILES LATER, SAME PROBLEM OCCURRED. *AK
TIRES PROBLEM
- Date Of Incident: 2000-08-25
- Crash: 1
- Components: TIRES
- Summary: WHILE DRIVING ABOUT 75 MPH LEFT REAR TIRE HAD A BLOWOUT AND LOST CONTROL OF VEHICLE, CRASHING INTO A DIVIDER ON THE HIGHWAY. VEHICLE HAD TO BE TOWED. BRIDGETONE BT 70S, P205/65 R15. *AK
STEERING PROBLEM
- Date Of Incident: 1999-08-01
- Components: STEERING
- Summary: POWER STEERING PUMP FAILED AND ALL FLUID CAME OUT.*ET
AIR BAGS PROBLEM
- Date Of Incident: 2024-11-24
- Components: AIR BAGS
- Summary: WHILE TRAVELING 15 MPH ON BRICK STREET AIR BAG DEPLOYED WITHOUT INDICATION. MANUFACTURER HAS BEEN NOTIFIED. PLEASE PROVIDE FURTHER INFORMATION. *AK
SERVICE BRAKES, HYDRAULIC PROBLEM
- Date Of Incident: 1999-06-18
- VIN: JA3AP57J8RY
- Components: SERVICE BRAKES, HYDRAULIC
- Summary: SINCE THE PURCHASE DATE OF THIS VEHICLE, EVERY SIX MONTHS, I GET A PULSATION IN THE STEERING WHEEL AND THE BRAKE PEDAL. THE FIRST TIME, MITSUBISHI DEALER SAID RESURFACE THE ROOTER. THE SECOND TIME, THEY SAID I SHOULD REPLACE THE PADS AND ROOTER, THE THIRD TIME THE WHEEL HUB MAY BE BAD, THE FOURTH TIME I TOOK IT TO A LOCAL GAS STATION AND THE ROOTERS WERE RESURFACED AGAIN AND I FEEL THE PROBLEM HAPPENING AGAIN. THE DEALER HAS CLEARLY SHOWN THAT THEY DONNOT KNOW WHAT THE PROBLEM IS NOR CAN FIX IT.I GET THIS PULSATION AT ABOUT 45 AND ABOVE ALONG WITH THE STEERING WHEEL SHAKING WHICH ON A RAINY DAY CAN BE BAD.I HAVE SPOKEN TO OVER TEN PEOPLE WITH DIAMANTE'S AND THEY HAVE STATED THEY HAVE THIS PROBLEM AND THEY CANT FIX IT..
TIRES PROBLEM
- Date Of Incident: 2024-11-24
- Components: TIRES
- Summary: IN JULY 1997 I PURCHASED A SET (4) OF GOODRICH COMP T/A, VR4, 205G5R15 TIRES FOR APPROXIMATELY $505. 6 MONTHS LATER I HAD A BLOWOUT LEAVING A SHOPPING CENTER. I DIDN'T THINK MUCH OF IT AND HAD IT REPLACED WITH AN IDENTICAL TIRE AT A LOCAL STATION FOR APPROXIMATELY $125. IN DECEMBER 1998 I HAD ANOTHER BLOWOUT WHILE DRIVING TO WORK AND WHILE I DID NOT HAVE AN ACCIDENT IT WAS CLOSE. I HAD AN IDENTICAL REPLACEMENT INSTALLED FOR AROUND $110. IN MARCH OF THIS YEAR I NOTICED A GOLF BALL SIZE KNOT ON ONE OF THE TWO REMAINING ORIGINAL TIRES. I'VE HAD IT REPLACED (MY STATION HAS SAVED THE TIRE) FOR ANOTHER $100. THE REMAINING TIRE NOW HAS A SMALL KNOT DEVELOPING ON THE SIDEWALL EXACTLY WHERE THE OTHER TIRE DEVELOPED THE KNOT. I WILL HAVE TO REPLACE THIS TIRE ALSO. IN SHORT I BOUGHT A SET OF TIRES THATS HAD TWO BLOWOUTS AND TWO KNOTS REQUIRING REPLACEMENT. A $500 SET OF TIRES HAS COST APPROXIMATELY $900 IN TWO YEARS AND I HAVE THE SAME TYPE OF TIRES THAT HAVE FAILED. IT APPEARS THEY WERE CONSTRUCTED WITH INHERENT DANGEROUS DEFECTS.( DOT NUMBER: TIRE SIZE: 205G5R15 )
AIR BAGS PROBLEM
- Date Of Incident: 1998-04-18
- VIN: JA3AP47H3R4
- Components: AIR BAGS
- Summary: NO DEPLOYMENT OF DRIVER'S/PASSENGER'S AIR BAGS DURING A CRASH.
POWER TRAIN PROBLEM
- Date Of Incident: 2024-11-24
- Components: POWER TRAIN
- Summary: TRANSMISSION ABRUPTLY DOWNSHIFTS EVERY DAY ON FIRST SLOW BRAKING AFTER COLD START IN MORNINGS. DEALERS HAVE BEEN UNABLE TO REPAIR. THEY SEEM TO HAVE TRACED IT TO A CIRUIT BOARD.
SEAT BELTS PROBLEM
- Date Of Incident: 1997-08-22
- Components: SEAT BELTS
- Summary: THE SEAT BELT ON THE DRIVER'S SIDE WILL NOT STAY LATCHED. CAN BUCKLE THE SEAT BELT, BUT IT WILL JUST POP OPEN. THE SEAT BELT BUCKLE HAS NOT BEEN FIXED. *AK
AIR BAGS,SEAT BELTS PROBLEM
- Date Of Incident: 1997-04-25
- Number Of Injuries: 1
- Crash: 1
- VIN: JA3AP47HORY
- Components: AIR BAGS,SEAT BELTS
- Summary: OWNER HIT ANOTHER CAR FROM BEHIND AND THE AIR BAG DIDN'T DEPLOY. ALSO, SEAT BELT DIDN'T RESTRAIN DRIVER FROM HITTING THE WINDSHIELD. *AK
SERVICE BRAKES, HYDRAULIC PROBLEM
- Date Of Incident: 1996-11-27
- Components: SERVICE BRAKES, HYDRAULIC
- Summary: ANTILOCK BRAKES FAILED, CAUSING ACCIDENT.
AIR BAGS PROBLEM
- Date Of Incident: 1996-10-22
- VIN: JA3AP47H0RY
- Components: AIR BAGS
- Summary: NO DEPLOYMENT OF AIRBAG DURING COLLISION.
STRUCTURE PROBLEM
- Date Of Incident: 1996-10-22
- VIN: JA3AP47H0RY
- Components: STRUCTURE
- Summary: HOOD BOLTS TORE OUT OF COWL, CAUSING HOOD TO COME OFF DURING ACCIDENT.
EQUIPMENT PROBLEM
- Date Of Incident: 2024-11-24
- VIN: JA3AP47HORY
- Components: EQUIPMENT
- Summary: THERE'S A SMELL THAT COMES OUT OF THE AIR CONDITIONER. PLEASE GIVE MORE INFORMATION. *AK
EQUIPMENT PROBLEM
- Date Of Incident: 1994-01-01
- VIN: JA3AP57J5RY
- Components: EQUIPMENT
- Summary: WHILE DRIVING CONSUMER SAYS THE AIR CONDITIONER MAKES THE CAR RUN HOT. TT
1994 Mitsubishi Diamante recalls
The National Highway Traffic Safety Administration (NHTSA) has issued 2 recalls for different components of the 1994 Mitsubishi Diamante.
- Manufacturer: MITSUBISHI CARIBBEAN
- Components: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
- Summary: UNDER CONDITIONS OF FULL LOCK STEERING AND FULL SUSPENSION TRAVEL, THE LEFT OR RIGHT FRONT WHEEL-SIDE BRAKE HOSE CAN CRACK, RESULTING IN BRAKE FLUID LEAKAGE.
- Consequence: BRAKE FLUID LEAKAGE WILL CAUSE ILLUMINATION OF THE BRAKE WARNING LAMP AND REDUCTION IN BRAKING EFFECTIVENESS INCREASING THE RISK OF A VEHICLE ACCIDENT.
- Remedy: DEALERS WILL REPLACE THE LEFT AND RIGHT FRONT WHEEL-SIDE BRAKE HOSES WITH REVISED HOSE ASSEMBLIES.
- Manufacturer: MITSUBISHI AMERICA
- Components: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
- Summary: UNDER CONDITIONS OF FULL LOCK STEERING AND FULL SUSPENSION TRAVEL, THE LEFT OR RIGHT FRONT WHEEL-SIDE BRAKE HOSE CAN CRACK, RESULTING IN BRAKE FLUID LEAKAGE.
- Consequence: BRAKE FLUID LEAKAGE WILL CAUSE ILLUMINATION OF THE BRAKE WARNING LAMP AND REDUCTION IN BRAKING EFFICIENCY INCREASING THE RISK OF A VEHICLE ACCIDENT.
- Remedy: DEALERS WILL REPLACE THE LEFT AND RIGHT FRONT WHEEL-SIDE BRAKE HOSES WITH REVISED HOSE ASSEMBLIES.
Negative 1994 Mitsubishi Diamante car reviews
Positive 1994 Mitsubishi Diamante car reviews
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I bought this car used a year and a half ago and I absolutely love how it handles. It's a great second car that's also great on gas, averaging about 35 city and 45 on the highway. It has great get up and go and is a real nice looking car both inside and out. I always get head turns everywhere I go!
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The car was purchased as a program car 12 months ago with 20k miles. Although it chews up brakes and needs to be re-padded every 30-35k miles, we have had no other problems in nearly 140k miles. The engine runs at a high temperature (normal), so it is important to change the oil religiously to prevent buildup. Overall, this is an exceptionally engineered car. We have noticed a nominal hesitation in shifting out of first gear when cold at 138.5k miles, but it is not significant. We were able to get 65k miles out of our first two sets of tires. Both changes were done not because we were low on tread, but for an opportunistic sale at Pepboys. We could have gone another 10k+ miles both times.
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The car has a 6 cylinder, SOHC engine that delivers excellent reliability and performance. It is important to have qualified mechanics perform major maintenance tasks, such as timing belt replacement. Additionally, investing in premium tires can greatly improve the quality of ride and handling. The only downside I have experienced is the turning radius.
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Bought car with 14K dealer demo miles and owned it through 100K. Love this car! It has a very BMW-ish styling and great reliability. I upgraded to 16
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I never would have guessed that my Diamante ES would become my all-time favorite car, surpassing even two Mercedes and an Audi. It has been incredibly reliable, only requiring maintenance every 30,000 miles, with the exception of a new idle motor a year ago. I never tire of driving it. While the engine did experience a known valve seal problem after 80,000 miles, I simply keep the oil level up and occasionally add a bottle of Lucas. The handling is exceptional for this class of car, especially with the latest Kumho Solus KH18 tires. I purchased an Accord two years ago, thinking that it was time to retire Molly after ten years. However, I ended up selling the Honda because I realized that I didn't like it as much and didn't need it!
Additional sources
More sources of information about 1994 Mitsubishi Diamante problems:
1994 Mitsubishi Diamante - Starting Problem
Sep 26, 2010 ... I changed the battery and now everything will come on and work but now the engine won't turn over and start. I can hear a clicking sound in ...
Things To Check Before Buying A Diamante. Most Common ...
Aug 30, 2010 ... ... common' mitsubishi model) so, i ... Land vehicle Vehicle Car Center console Mitsubishi diamante ... common problems or common fixes anyone know of?
Mitsubishi Diamante Problems and Complaints - 5 Issues
Top Mitsubishi Diamante Problems · The automatic transmission may fail prematurely. 44 people have reported this · Coolant Leak From Heater Core. 38 people have ...
When i speed up in my 92 mitsubishi diamante the engine is jurky ...
Feb 19, 2007 ... If low, you may need a fuel pump running the engine lean on acceleration.The Air Flow sensor on this car is a common problem but is a vain type ...
2002 Mitsubishi Diamante Problems | Kelley Blue Book
How reliable is the 2002 Mitsubishi Diamante? See the most common repairs performed and learn if your vehicle is at risk for major repairs in the next 12 ...
Other years of Mitsubishi Diamante
Are you having problems with your 1994 Mitsubishi Diamante?
Jalon Welch 2024-07-12
You can rely on this vehicle without any unexpected repairs. Although repairs can be expensive, they are done with great care. It safely gets me to work, even on days when I'm feeling a bit groggy.
Chauncey Collier 2024-07-11
Although I have experienced significant mechanical issues with my Mitsubishi, I have taken excellent care of it. Unfortunately, the motor, transmission, and compressor all failed, even though the warranty had just expired at 75,000 miles. Despite the expenses and heartache, I continued to drive it because it was paid for. However, it has spent a considerable amount of time in the shops. My brother also had a Mitsubishi and experienced similar issues, leading him to return it within a year. While I have shared my negative experiences with many people, I remain confident that Mitsubishi will address these issues and improve their vehicles in the future.
Jay Schneider 2024-06-21
It's unfortunate that my experience with my Mitsubishi car wasn't as positive as I had hoped. After the warranty ran out, I encountered some issues with the steering assembly and electrical problems. Despite my efforts to maintain the car by changing the oil every 2000 miles, the engine eventually blew due to a defective cam shaft. I spent a significant amount of money trying to fix the engine, but unfortunately, it was beyond repair. I ended up selling the car to my neighbor for a lower price and advised them against purchasing it. It's been sitting in their yard for a year now. While my experience with Mitsubishi wasn't great, I hope others have had better luck with their cars.
Erik Huel 2024-05-13
If you have other options, it might be best to avoid purchasing this car. It tends to have high gas consumption and requires frequent, costly repairs.
Albin Wiza 2024-04-13
Its a great car when everything works, but when it breaks down, watch out, parts are EXPENSIVE. And it depreciates like a ship sinking with full cargo.