1998 Mitsubishi Diamante problems

Filed May 11, 2015 · Visibility · 171,000 miles · IL

The heater core has failed (once again) I am not sure of any company that has realeased their cars with such a major failure without taking some kind of responsibility to recall this item in the car. Nearly all of the heater cores from mitsubishi diamantes that I have seen are all bad. Leaks onto the ecu and causes a whole heck load of problems. Please dot have mitsubishi recall this. As to this causes immense damages and people like me driving around with this faulty piece are breathing in the fumes and driving with nearly full fogged windshields causing really poor visibility which is an extreme hazard to our roads and fellow pedestrians please I urge you to take this complaint serious and use your dot powers to make this manufacturer do what is right! Thanks for your time

Filed Sep 28, 2008 · Acceleration · 31,385 miles · WA

We just cleared canadian customs at blaine wa, pacific crossing, and were accelerating to speed limit on I 5 freeway when the car accelerated to near 100 miles an hour. The tach at some point was 7500 and increasing. The accelerator was stuck and eventually we were able to get to the emergency lane area and turned of the ignition key. Full pressure on the brakes would not slow it down much. *tr we were towed 21 miles to davis automotive in bellingham, wa, where a replacement throttle cable and associated structure was severely bent and the cable had cut thru it and stuck. *mec the consumer had the vehicle towed where a replacement throttle cable was installed. Updated 10/10/08.

Filed Sep 17, 2008 · Visibility · 132,000 miles · IL

This is the second time the heater core has started to leak. It was replaced 40k miles ago and I was charged $ 1,000 for repair costs. Having researched this, it is due to faulty heater core gaskets which mitsubishi replaced the defective gaskets with a redesigned one. The car is undrivable due to the toxic fumes from the ethylene glycol coming out of all the vents and I do not have the money to get it repaired. Mitsubishi refuses to do anything about it, and nearly every diamante on the road has had this happen. The carpet is ruined from the coolant leak as well, and many have had the ecu for the transmission fail due to coolant leaking on it.

Filed Apr 26, 2008 · Electrical · 900,000 miles · NC

Will not pass emission there are no readiness codes stored in computer.

Filed Nov 9, 2007 · Visibility · OK

Everytime the heater is switched on, I can feel a weird smell which will last for about 10 mins. This smell seems like suffocating and have to open the windows for the fresh air to enter. There is some kind of leak in the engine compartment, I am not sure where the leak is from. I am bit worried abt the smell. Thanks

Filed May 1, 2006 · Visibility · 131,000 miles · IL

Failure of heater core gaskets resulting in fumes inside the car from anti-freeze; this is the 2nd time this has happened with this vehicle in the last 35,000 miles and the repair labor is estimated at 6 hours, which is around $1,000.

Filed Jan 5, 2006 · Visibility · 74,000 miles · NV

1998 mitsubishi diamante heater core leaking fogging windshield during freeway travel. Hazard to health with while operation auto.

Filed Mar 24, 2005 · Visibility · 50,000 miles · CA

While driving consumer smelled a bad odor coming from the heater core. Heater system was leaking coolant. This happened three times. The seal had to be replaced. *ak the vehicle's heater core and refrigerant were replaced.

Filed Feb 23, 2005 · Visibility · 78,000 miles · MI

Windows fog up and cannot be cleared by the defroster. Very strong smell of anti-freeze inside the car. Smokey vapors come out of the heating vents. I'm having difficulty breathing while driving my car, and believe the cause of my nausea and headache is due to breathing anti-freeze vapors. Stain on passenger side of carpet. All these symptoms indicate a heater core problem.

Filed Nov 30, 2004 · Engine, Visibility · 58,000 miles · TX

I own a preowned 1998 mistubishi diamante ls. When the climate control, particularly the heater is engaged, the smell of anti-freeze becomes quite apparent. Dealer claimed 2 years ago when I bought it that it was the smell of the chemicals used to clean the car during "make-ready." ethylen glycol fumes are toxic and this is a reoccuring defect in this model car from posts I have seen on various websites. I was later told that to fix this problem will cost close to $1000 since the car is out of warranty. Mitsubish issued a tsb addressing this problem, obviously they are aware of it. In addition, the windshield is covered with a film that cannot be washed off from this leak. A recall should be issued for this problem, I am not the first person to file this complaint on your website. Thank you.