Gasoline Fuel System Problems of Mitsubishi Diamante

The contact owns a 2003 Mitsubishi Diamante. The contact stated the vehicle was consuming excessive amounts of fuel and she was concerned the vehicle would prematurely run out of fuel while driving. The vehicle was taken to an independent repair shop where the contact was told that the intake air temperature sensor would need to be replaced. The vehicle was not repaired. The failure mileage was 60,000 and the current mileage was 70,000.

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Fuel level gauge stuck near half full.

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I purchased a used 2003 Mitsubishi Diamante from bankston Dodge in 2007. It was clean and ran well. There was an unusual odor inside, but smelled as if it could have been what the dealership used to clean the inside. It turned out to be anti-freeze. The vehicle had a heater core leak prior to our purchase. Recently the gas gauge has stopped working.

Heater core issue with Mitsubishi Diamante 1999 summary: notice consistent and very noticiable foul odor when car is shutoff. Can smell inside the vehicle as well. Some fogging of front windshield. Have had this problem identified as consistent with heater core's issues by other Diamante owners who have had their car serviced at a Mitsubishi dealer. Have not replaced anything yet because the parts and labor quotes have been anywhere from $600-$1000. Car has 56,000 miles on it, but have noticed problem since buying the vehicle last year with 36,000 miles. Tried adding stop leak to the gas with no results.

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