Tank Assembly Problems of Mitsubishi Diamante

Mitsubishi Diamante owners have reported 4 problems related to tank assembly (under the gasoline fuel system category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Mitsubishi Diamante based on all problems reported for the Diamante.

1 Tank Assembly problem of the 2000 Mitsubishi Diamante

Failure Date: 06/09/2005

Consumer has 2000 Mitsubishi Diamante whose gas tank leaks consumer took vehicle to dealer, and dealer found gas leakage, but could not find any hole in the gas tank.

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2 Tank Assembly problem of the 1997 Mitsubishi Diamante

Failure Date: 06/09/2004

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.

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3 Tank Assembly problem of the 1997 Mitsubishi Diamante

Failure Date: 02/20/2002

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 NHTSA that alternator pulley is a known design flaw. Mitsubishi and their dealers must be held accountable.

4 Tank Assembly problem of the 2000 Mitsubishi Diamante

Failure Date: 12/18/2000

A boom noise has been coming from fuel pump. Vehicle has been in 7 times with no remedy found. Dealer said gas cap was expanding and collapsing. On 3-16-01 gas cap/ fuel pump and fuel gauge were replaced. On 3-16-01 valve and fuel tank assembly were replaced; on 3-23-01, dealer replaced fuel system cleaner kit, and fuel gauge assembly again, and 3-28-2001 gas cap and pressure relaease valve were replaced.


Other Common Gasoline Fuel System related problems of Mitsubishi Diamante



Fuel Economy of Diamante Vehicles
Diamante Service Bulletins
Diamante Safety Recalls