1984 Toyota Supra problems
The Toyota Supra (Japanese: トヨタ・スープラ, Hepburn: Toyota Sūpura) is a sports car and grand tourer manufactured by the Toyota Motor Corporation beginning in 1978. The name "supra" is derived from the Latin prefix, meaning "above", "to surpass" or "go beyond".
The initial four generations of the Supra were produced from 1978 to 2002. The fifth generation has been produced since March 2019 and went on sale in May 2019. The styling of the original Supra was derived from the Toyota Celica, but it was longer. Starting in mid-1986, the A70 Supra became a separate model from the Celica. In turn, Toyota also stopped using the prefix Celica and named the car Supra. Owing to the similarity and past of the Celica's name, it is frequently mistaken for the Supra, and vice versa. The first, second and third generations of the Supra were assembled at the Tahara plant in Tahara, Aichi, while the fourth generation was assembled at the Motomachi plant in Toyota City. The 5th generation of the Supra is assembled alongside the G29 BMW Z4 in Graz, Austria by Magna Steyr.
The Supra traces much of its roots back to the 2000GT owing to an inline-6 layout. The first three generations were offered with a direct descendant to the Crown's and 2000GT's M engine. Interior aspects were also similar, as was the chassis code "A". Along with this name, Toyota also included its own logo for the Supra. It was derived from the original Celica logo, being blue instead of orange. This logo was used until January 1986, when the A70 Supra was introduced. The new logo was similar in size, with orange writing on a red background, but without the dragon design. That logo, in turn, was on Supras until 1991 when Toyota switched to its current oval company logo. The dragon logo was a Celica logo regardless of what colour it was. It appeared on the first two generations of the Supra because they were officially Toyota Celicas. The dragon logo was used for the Celica line until it was also discontinued.
In 1998, Toyota ceased sales of the fourth-generation Supra in the United States. Production of the fourth-generation Supra for worldwide markets ended in 2002. In January 2019, the fifth-generation Supra, which was co-developed with the G29 BMW Z4, was introduced.
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Common 1984 Toyota Supra problems
The 1984 Toyota Supra MKII is a popular car among enthusiasts, but like any vehicle, it can have its share of common problems. Here are some of the issues that owners have reported:
- Brakes dragging: This issue is more likely to affect Supras with high mileage and is caused by a worn-out brake master cylinder. The solution is to replace the cylinder with a new one, which can be delivered directly from the BreakerYard store.
- Lack of power and poor fuel economy: This problem is caused by a worn-out throttle position sensor, which is a known weak spot on the Supra. The solution is to replace the sensor with a new one, which can be found on the BreakerYard parts list.
- High pressure in the gas tank: This problem is caused by the Evaporative system, specifically the vapor canister, which can release charcoal pellets that plug up the vent valve. The solution is to replace the vapor canister with a new one that comes complete with valves.
- Steering wheel shudder when braking: This problem is caused by warped front rotors, which can be re-machined or replaced with new ones. In some later models of the Supra, this problem can also be caused by a configuration issue in the steering tie rod, which cannot be repaired and requires replacement.
- Cylinder head gasket failure: This problem is caused by incorrect torque of the cylinder head bolts and can result in overheating and white smoke from the exhaust. The solution is to fit a replacement cylinder head gasket.
It is important to note that these common problems are not exclusive to the 1984 model year and may affect other years of the Toyota Supra as well. When considering purchasing a Supra, it is recommended to perform a thorough inspection and compression test, as well as to check for any signs of rust or other mechanical issues.
What motor is in a 1984 Supra?
2.8-liter inline six-cylinder
1984 Toyota Celica Supra
At launch, it was powered by a 2.8-liter inline six-cylinder making 145 horsepower and 155 pound-feet of torque.
What is the top speed of the 1984 Toyota Celica Supra?
Performance
| 1000 m | 30.7 s @ 181.9 kph |
|---|---|
| 0 - 100 mph | 22.9 s |
| 0 - 110 mph | 30.9 s |
| 1/4 mile | 16.8 s @ 84.0 mph |
| Top speed | 215 kph (134 mph) |
What is the old Supra engine?
The Supra was first exported outside Japan in January 1979. The federalized model was originally equipped with a 110 hp (82 kW; 112 PS) 2.6-litre 12-valve SOHC inline-6 engine. Transmission options for the model were either a 5-speed manual (W50) or an optional 4-speed automatic transmission (A40D).
What year Supra is the fastest?
Models have been arranged from slowest to fastest.
- 8 1984 Toyota Celica Supra (MA67) ...
- 7 1986 Toyota Supra (MA70) ...
- 6 1993 Toyota Supra (JZA80) ...
- 5 1987 Toyota Supra Turbo (MA70) ...
- 4 1991 Toyota Supra 2.5 Twin Turbo (JZA70) ...
- 3 1995 Toyota Supra Turbo (JZA80) ...
- 2 2020 Toyota GR Supra (J29/A90) ...
- 1 2024 Toyota GR Supra (J29/A90)
What motor is in a 1984 Supra?
2.8-liter inline six-cylinder
1984 Toyota Celica Supra
At launch, it was powered by a 2.8-liter inline six-cylinder making 145 horsepower and 155 pound-feet of torque.
What year Supra is most desirable?
The 1993-1998 Toyota Supra remains a sought-after car today, and is available for purchase on the used car market. Prices can vary, depending on condition and mileage, but the Supra remains one of the most sought-after sports cars on the market.
What is the top speed of the 1984 Toyota Celica Supra?
Performance
| 1000 m | 30.7 s @ 181.9 kph |
|---|---|
| 0 - 100 mph | 22.9 s |
| 0 - 110 mph | 30.9 s |
| 1/4 mile | 16.8 s @ 84.0 mph |
| Top speed | 215 kph (134 mph) |
What is the old Toyota Supra?
The first generation of the Supra was based largely upon the Toyota Celica liftback, but was longer by 129.5 mm (5.10 in). The doors and rear section were shared with the Celica but the front panels were elongated to accommodate the Inline-6 instead of the Celica's 4-cylinder engine.
1984 Toyota Supra car problems categorized by type of issue
After analyzing all complaints sent to the NHTSA and researching popular Toyota Supra problems, we found that the most common problems with these 2023 model year vehicles are:
- Service brakes problems
- Hydraulic problems
The graph below shows statistics for all 1984 Toyota Supra vehicle components and the number of complaints received.
1984 Toyota Supra complaints
The NHTSA has received 1 complaints about various vehicle components related to the 1984 Toyota Supra.
SERVICE BRAKES, HYDRAULIC PROBLEM
- Date Of Incident: 2024-11-24
- Components: SERVICE BRAKES, HYDRAULIC
- Summary: WHILE DRIVING FRONT BRAKE DISC ROTORS BROKE COMPLETELY OFF. DEALER HAS BEEN CONTACTED.
1984 Toyota Supra recalls
The National Highway Traffic Safety Administration (NHTSA) has issued 2 recalls for different components of the 1984 Toyota Supra.
- Manufacturer: TOYOTA MOTOR CO., LTD.
- Components: ENGINE AND ENGINE COOLING:ENGINE
- Summary: OIL PRESSURE SENDER GAUGE MAY BE DEFECTIVE. CONTINUED ENGINE OPERATION UNDER HIGH TEMPERATURE AND HIGH PRESSURE MAY CAUSE THE SENDING UNIT TO LEAK OIL OR MAY CAUSE THE ENGINE TO LOCK UP.
- Remedy: REPLACEMENT OF THE OIL SENDER GAUGE WITHOUT COST TO THE OWNER.
- Manufacturer: TOYOTA MOTOR CO., LTD.
- Components: ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR
- Summary: VOLTAGE REGULATOR WHICH CONTROLS THE AMOUNT OF FLOW IN THE ELECTRICAL SYSTEM BETWEEN THE BATTERY AND THE ALTERNATOR, MAY HAVE MANUFACTURING ERRORS IN AN INTEGRATED CIRCUIT. THE REGULATOR MAY OVERCHARGE THE BATTERY.
- Remedy: DEALER WILL REPLACE THE VOLTAGE REGULATOR AT NO CHARGE.
Additional sources
More sources of information about 1984 Toyota Supra problems:
Common Problems...MKII | Toyota Celica Supra Forum
Aug 6, 2005 ... Ford's aren't in the same class and neither are most cars. 84 mt 6mge with intake, exhaust, suspension, brake, and wheel mods 85 mt 6mge stock.
Common Problems? Upgrades? | Supra Forums
Jul 15, 2002 ... Common Problems? ... 84's have a problem where the rear glass ... Supra Forums is the largest online Toyota Supra MKI, MKII, MKIII, MKIV and MKV ...
New Toyota Supra Technical review and common problems ...
Mar 13, 2021 ... '21 A90 Tungsten HKS Cold Air Intake|AMS Catted DP|TE37|Vargas Turbo Titanium Studs|JB+| Result Japan Carbon Wing| Aimgain 80mm Front Lip ...
What Problems Should I look for before buying MKII | Toyota Celica ...
Apr 29, 2020 ... I'm about to pay 10k for a 1984 Supra mkii that seems pretty clean with most original parts. I have already checked the the obvious spots ...
No heat? The two most common problems HCV VSV and blower ...
Feb 13, 2012 ... Home / Toyota Supra Forums ...
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