Mitsubishi Diamante Fuel Pump Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

customer ratings

(33)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

customer ratings

(33)

Fuel Pump Replacement Estimate for Mitsubishi Diamante

Mitsubishi Diamante Fuel Pump Replacement costs $495 on average.

CarServiceEstimateShop/Dealer Price
1995 Mitsubishi DiamanteV6-3.0LService typeFuel Pump ReplacementEstimate$637.28Shop/Dealer Price$744.33 - $949.67
1992 Mitsubishi DiamanteV6-3.0LService typeFuel Pump ReplacementEstimate$554.28Shop/Dealer Price$661.40 - $866.79
1996 Mitsubishi DiamanteV6-3.0LService typeFuel Pump ReplacementEstimate$554.28Shop/Dealer Price$661.39 - $866.78
2004 Mitsubishi DiamanteV6-3.5LService typeFuel Pump ReplacementEstimate$674.01Shop/Dealer Price$818.56 - $1164.38
1997 Mitsubishi DiamanteV6-3.5LService typeFuel Pump ReplacementEstimate$674.01Shop/Dealer Price$818.68 - $1164.59
1998 Mitsubishi DiamanteV6-3.5LService typeFuel Pump ReplacementEstimate$674.01Shop/Dealer Price$818.63 - $1164.50
2000 Mitsubishi DiamanteV6-3.5LService typeFuel Pump ReplacementEstimate$689.76Shop/Dealer Price$833.96 - $1179.50
1999 Mitsubishi DiamanteV6-3.5LService typeFuel Pump ReplacementEstimate$689.76Shop/Dealer Price$835.13 - $1181.56
Show example Mitsubishi Diamante Fuel Pump Replacement prices

Fuel Pump Replacement Service

What is the fuel pump and how does it work?

The fuel pump supplies pressurized gasoline to each of the fuel injectors in a car’s engine. The fuel pump is powered by a compact electric motor and is located in the vehicle’s gas tank. The pressure and output of the pump are controlled by a regulator. Filtration of the fuel occurs either in the fuel tank using a pickup screen or externally with a replaceable filter mounted in the fuel supply line.

When to consider replacing the fuel pump?

A high quality, OEM fuel pump can last indefinitely. However, as with any electro-mechanical component, a fuel pump will eventually degrade and fail. If it fails to produce adequate pressure or completely quits operating, it will need to be replaced. This failed condition can sometimes be preceded or accompanied by one or more of the following symptoms:

  • Car won’t start or unexpectedly stalls and won’t re-start. A failed fuel pump may prevent a car from starting or stall it.
  • Check engine light is on. Sometimes a fuel pump will fail slowly, and that means the fuel pressure and volume slowly degrades. The lack of fuel may result in the engine operating without enough fuel relative to the amount of air, causing the check engine light to appear.
  • Whirring noise from fuel tank. As a fuel pump fails, you may notice a whirring or humming noise coming from the fuel tank area, toward the rear of the car. If the noise is from the fuel pump, failure of the pump is often imminent and you should replace the fuel pump at your earliest convenience.

How do mechanics replace the fuel pump?

  • The fuel pump is tested to be sure it isn’t functioning.
  • Should the fuel pump be faulty, it is removed from the tank through an access panel above the tank in the passenger compartment.
  • When no access panel exists, fuel is first drained from the tank and then the fuel tank must be lowered from the vehicle to gain access to the pump.
  • In all cases, fuel pump supply and return hoses, as well as EVAP system hoses, and electrical connections to the pump must be removed.
  • Once the pump is out, any reusable brackets and pick up screens are attached to the new pump, then the new pump is installed.
  • If the fuel system uses an in-line external filter, a filter is often replaced. All hoses and electrical connections are re-established.
  • Fuel is added to the tank and the engine is run to test for leaks.

Is it safe to drive with a fuel pump problem?

Usually, it’s still safe to drive, but the pump may lead to an overheated engine and catalytic converter. Complete fuel pump failure can leave you stranded out on the road, but many times a car won’t start before initially driving.

However, if the fuel pump problem involves leaks of gasoline or vapors, it is unsafe to continue driving, and should immediately be checked by a qualified mechanic.

When replacing the fuel pump keep in mind:

  • Prior to replacing, the mechanic will power the fuel pump directly to confirm that the issue is a failed pump versus a faulty power supply to the pump.
  • Unless the fuel filter was replaced recently, whenever the fuel pump is replaced a new fuel filter should be installed.
  • When failing earlier than expected, the power supply should be verified because a voltage drop in the fuel pump circuit can lead to overheating.
  • Should the fuel tank be lowered during the repair, the fuel tank straps and fasteners should be checked for excessive corrosion and replaced as needed.
  • The fuel in the gas tank cools and lubricates the fuel pump. After installation of a new fuel pump, it’s wise to keep the gas tank at least a quarter full to maximize the life of a new fuel pump.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mitsubishi mechanics

Real customer reviews from Mitsubishi owners like you.

Excellent Rating

(33)

Rating Summary
29
3
0
0
1
29
3
0
0
1

Mathew

24 years of experience
93 reviews
Mathew
24 years of experience
Mitsubishi Diamante V6-3.5L - Transmission Position Sensor (Switch) - Jacksonville, Florida
He showed up right on time and took his time going thru service and other facets of my vehicle that weren't even being serviced. He went Above and Beyond by helping me with the hood of the car-the latch had broke and he jimmied it where it could open and close after it was in a fender bender-it had Nothing to do with why he was there, but he made sure it was road worthy...We definitely found Our Mechanic in Mathew!

Matt

17 years of experience
38 reviews
Matt
17 years of experience
Mitsubishi Diamante V6-3.5L - Car is not starting - Garner, North Carolina
Great job! . He was thorough in his diagnosis of the my issue. Found the problem and I scheduled him to return and repair the problem.

Trevor

22 years of experience
185 reviews
Trevor
22 years of experience
Mitsubishi Diamante V6-3.5L - Car is not starting - San Diego, California
Patient mechanic and was good in explaining what the issues were.

Keith

26 years of experience
231 reviews
Keith
26 years of experience
Mitsubishi Diamante V6-3.5L - Idle Control Valve - Fort Worth, Texas
Keith was on time and did the work in a timely manner. Hope the least expensive fix keeps her running for a few more months!!!

Excellent Rating

(33)

Rating Summary
29
3
0
0
1
29
3
0
0
1
Number of Mitsubishi Diamante services completed
363+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mitsubishi MECHANICS
700+
experts on our platform

Recent articles & questions

Symptoms of a Bad or Failing Door Mirror
If a side mirror has its glass broken, cannot be moved or adjusted, or has a heater that is not working, you may need to replace a door mirror.
Should You Buy a Dash Cam?
If If you’re someone who loves to watch viral videos on social media, you’re going to be familiar with dash cam videos. You know the ones - car crashes caught on camera through the windshield of a car, massive explosions...
Bicycle Safety Laws For Car Drivers in the U.S.
Cars and bicyclists follow road rules to reduce the risk of accidents. Riding bikes in bike lanes and providing a buffer zone help keep everyone safe.

My car won't start - 2005 Nissan Micra

Hello. You may have a short-term and long-term problem that are the same. For the "Oil Light is on", check the oil level before starting it again. If the oil level is low enough to cause the oil light to...

Water leak in my rear passenger foot well

There may be no easy answer for this. Modern cars are so thoroughly insulated and sealed, and the interior structures are so complex that it can be very difficult to find the kind of leak that you're looking for. It...

My car just started making a loud noise last night when I push the gas and I can feel it under my feet. Is it a muffler problem?

You should have the exhaust system checked since you just had work done recently something in the repairs done may have come loose. Look under vehicle first to see if anything is hanging down so you cannot drive it. If...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com