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1997 Mitsubishi Diamante problems

The most common problem on the 1997 Mitsubishi Diamante is brakes. It has fewer complaints than a typical Diamante model year.

Typical yearClose to a typical year
Owner complaints
34
Recalls
0
Service bulletins
56
Worst area
Brakes
Fuel economy
19mpg

The worst 1997 Mitsubishi Diamante problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Brakes
    15
  • Transmission
    10
  • Engine
    4
  • Fuel system
    3
  • Visibility
    3
  • Acceleration
    2
  • Electrical
    2
  • Seat belts
    2
  • Tires
    2
  • Body
    1
  • Locks
    1
  • Steering
    1

Recalls

No recalls on record for this model year.

Technical service bulletins for the 1997 Mitsubishi Diamante 56

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

See all 56 bulletins for the 1997 Mitsubishi Diamante

1997 Mitsubishi Diamante fuel economy

Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.

EngineDriveCityHighwayCombined
3.5L 6‑cylFWD162419

What 1997 Mitsubishi Diamante owners say

Most recent owner complaints, unedited.

Filed Jul 7, 2008 · Tires · 151,000 miles · OK · crash · 1 injury

Tl*the contact owns a 1997 mitsubishi diamante. The vehicle has cooper lifeliner classic ii tires, size 115/60/15. While driving approximately 70 MPH, the rear driver's side tire spontaneously blew out. The contact lost control of the vehicle and crashed. The vehicle was completely destroyed and a police report was filed. Prior to the crash, she noticed that the tire pressure was normal and that the tread depth was 8/32. After inspecting the tire, an officer concluded that the tread was defective because chunks of the tread were missing and wires were hanging out of the tires. The contact has pictures of the failed component. The tire failure mileage was 13,000. The vehicle failure mileage was 151,000. Updated 09/10/08 *bf updated 09/16/08.

Filed Feb 11, 2008 · Visibility · 112,000 miles · OH

Tl*the contact owns a 1997 mitsubishi diamante. The contact stated that the radiator leaked due to the heater core. The radiator leaked onto the carpet when the heat was activated. The contact stated that he and his family have inhaled toxic fumes from the radiator leaking onto the carpet and they are concerned of future health risks. In order to repair the leak, the entire dashboard had to be removed. The VIN was unavailable. The current mileage was 113,000 and failure mileage was 112,000.

Filed Jan 21, 2008 · Engine · 111,132 miles · OH

There is a major problem with the mitsubishi diamante heater core going out. Mine went out a few days ago and was informed by mitsubishi it will cost me 965 to replace. Even though there are hundreds of mitsubishi diamante owners complaining about this problem including with people that have as low as 30-45k on their vehicle. Please look at this forum which show many mitsubishi owners complaining about their vehicle.. Http://www.diamanteowners.com/forum/lofiversion/index.php?t3615-0.html please help me and help these poor owners. Recall this major error mistubishi knows about but refuses to do anything about it and keep silent. This also can cause death because when the heater core fails it leaks and causes a bad odor of antifreeze. You wouldn't want your kids breathing on that would you. On the website I have provided you it will show a case in which a person went into respiratory failure do to inhaling anti freeze.. Many of these owners till this day face a danger because they have no choice but to drive these vehicles as it is there only means of transportation and many cannot afford to fix this expensive problem (costing as much as 1,300). We beg of all the good people that had made a difference in peoples lives, safety and security to help us diamante owners thank you and god bless

Filed Jun 17, 2007 · Engine · NY

Heater core randomly cracked one day, causing a tear-like spill of anti-freeze through the top of the radiator. Car was taken to a mechanic and we tried welding the cracks. Anti-freeze still spilled out and anti-freeze smell came in through air events and the liquid also burned, causing smoke to come out from under the hood.

Filed Sep 21, 2005 · Body · SC

The paint on the roof and trunk deck of my 1997 diamante is fading with white patches. The hood and body paint looks good as new. I waxed my vehicle at least 3 times a year. Is this a defect from the factory I have notice several similar models with the same problem. What should I do about the problem?

Filed Jun 9, 2005 · Fuel system · 78,000 miles · MA · fire

Dt: consumer had 1997 mitsubishi diamante. Consumer took vehicle to dealer,. Vehicle had a gas leak, dealer could not find hole in gas tank, consumer replaced gas tank, about 8 months after gas tank was replaced the vehicle exploded.

Filed Feb 22, 2002 · Fuel system, Transmission · GA

Safety - transmission: at 9,500 miles my car started lurching when stepping on the gas from a stop. It supposedly was repaired but has continued to be problem and each time I bring it in for service the dealer can not recreate the problem. Since I had not heard that this has been on going problem with this model, I thought it must be something that I had done. Upon reviewing the information of nhsta, I realize that the dealers and mitsubishi are deliberately hiding this problem. Safety - fuel tank: my fuel tank began leaking at 59,560 miles and when the dealer removed it had 3 stress wholes. The tank had to be sent out for welding. Of course, I had to pay for the repair even though I spoke directly to the mitsubishi complaint department. Since it was not a recall item, mitsubishi or the dealer will not pay for the repair. The dangerous fuel leak is another ongoing hidden problem. Alternator pulley: has been making noise from the beginning and I have complained each service. Now, I discover through the federal safety agency that alternator pulley is a known design flaw. Mitsubishi and their dealers must be held accountable.

Filed Nov 26, 2001 · Steering · NC

No summary listed for above vehicle.

Filed Sep 17, 2001 · Brakes, Engine · MD

I purchased this vehicle 2 months ago and have made 5 trips back to the dealer due to brakes, tires & engine tapping and now the transmission seems to be slipping. *ak (dot number: n/a tiresize: p21560r16)

Filed Jan 25, 2001 · Brakes · NY

When consumer applies brakes there is smoke coming from wheel, and brakes do not work. Dealership is aware of problem.

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Questions about the 1997 Mitsubishi Diamante

Is the 1997 Mitsubishi Diamante reliable?

Owners have filed 34 complaints about the 1997 Mitsubishi Diamante, fewer than a typical Diamante model year.

What is the most common problem with the 1997 Mitsubishi Diamante?

Brakes, with 15 complaints. Next is transmission (10).

How many recalls does the 1997 Mitsubishi Diamante have?

No recalls on record.

What gas mileage does the 1997 Mitsubishi Diamante get?

Official estimates for the 1997 Mitsubishi Diamante range from 19 mpg combined. The most efficient version (3.5L 6-cyl, FWD) gets 16 city and 24 highway.

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