Two problems related to radiator have been reported for the 1997 Mitsubishi Diamante. The most recently reported issues are listed below.
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. . Read more...
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.
| Radiator problems | |
| Gasoline Engine problems | |
| Engine problems |