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

(34)

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

(34)

Fuel Pump Replacement Service

How much does a Fuel Pump Replacement cost?

On average, the cost for a Mitsubishi Diamante Fuel Pump Replacement is $410 with $111 for parts and $299 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1999 Mitsubishi DiamanteV6-3.5LService typeFuel Pump ReplacementEstimate$784.26Shop/Dealer Price$921.27 - $1261.43
1998 Mitsubishi DiamanteV6-3.5LService typeFuel Pump ReplacementEstimate$721.26Shop/Dealer Price$858.33 - $1198.53
2002 Mitsubishi DiamanteV6-3.5LService typeFuel Pump ReplacementEstimate$721.26Shop/Dealer Price$858.32 - $1198.52
2003 Mitsubishi DiamanteV6-3.5LService typeFuel Pump ReplacementEstimate$721.26Shop/Dealer Price$858.25 - $1198.40
1992 Mitsubishi DiamanteV6-3.0LService typeFuel Pump ReplacementEstimate$616.53Shop/Dealer Price$713.75 - $911.72
2004 Mitsubishi DiamanteV6-3.5LService typeFuel Pump ReplacementEstimate$721.26Shop/Dealer Price$858.32 - $1198.52
1994 Mitsubishi DiamanteV6-3.0LService typeFuel Pump ReplacementEstimate$637.28Shop/Dealer Price$733.87 - $931.36
2001 Mitsubishi DiamanteV6-3.5LService typeFuel Pump ReplacementEstimate$737.01Shop/Dealer Price$874.82 - $1215.58
Show example Mitsubishi Diamante Fuel Pump Replacement prices

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

(34)

Rating Summary
30
3
0
0
1
30
3
0
0
1

Milenko

17 years of experience
87 reviews
Milenko
17 years of experience
Mitsubishi Diamante V6-3.5L - Check Engine Light is on - Indianapolis, Indiana
He was great and really helped with giving me pointers on what I needed.

Ruben

14 years of experience
86 reviews
Ruben
14 years of experience
Mitsubishi Diamante V6-3.5L - Tune-up - Los Angeles, California
He came on time and did a great job.

Theodore

16 years of experience
1587 reviews
Theodore
16 years of experience
Mitsubishi Diamante V6-3.5L - Alternator - Issaquah, Washington
Theodore was great! Showed up right to my door with all the necessary tools and parts and made the repairs in no time. Very friendly and skilled in what he does. He was happy to explain to me what the issues were as well as giving me advice about maintenance on the rest of the vehicle. Car runs great now. Couldn't be happier with Theodore and the YourMechanic service. Fantastic and at a very reasonable rate and utmost convenience!!!

Matt

17 years of experience
38 reviews
Matt
17 years of experience
Mitsubishi Diamante V6-3.5L - Starter - Garner, North Carolina
Job well done!

Excellent Rating

(34)

Rating Summary
30
3
0
0
1
30
3
0
0
1
Number of Mitsubishi Diamante services completed
374+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mitsubishi MECHANICS
700+
experts on our platform

Recent articles & questions

How to Brake Smoothly (The Pivot Method)
Braking Braking is a skill. Braking, just like any other aspect of driving, takes a certain level of skill to get right. Good braking technique will not only be less stressful on the driver and passengers, but it will also...
How Long Does a Crankshaft Harmonic Balancer Last?
The The crankshaft harmonic balancer is also known as the crank pulley damper. It is connected to the crankshaft on the engine and reduces vibrations that originate from your engine. In addition, it serves as a pulley for the drive...
Symptoms of a Bad or Failing Flexible Clutch Hose
Common signs include difficulty shifting, low clutch fluid, and feeling no resistance at the clutch pedal.

Had axles and outer tie rods replaced. Now I hear loud creaking sounds coming from front near middle of van 2007 Chrysler Town & Country

Hi there - your symptoms describe possible worn strut bearing plates (https://www.yourmechanic.com/question/new-gas-struts-installed-groaning-noise-like-rubber-on-metal-can-or-should-you-grease-them-by-adam-h), or a power steering rack that is worn. Both tend to "creak' a bit more during cold weather. I recommend a " steering & suspension inspection](https://www.yourmechanic.com/services/brakes-steering-and-suspension-inspection) performed by...

Second Opinion) Customer: I have a pp171 code on my carJA: Just to clarify, what's the exact code? And have you tried to reset it?Customer: P0171JA: What is the make/model/year of your car?Customer: 2014 cruzeJA: Are you fixing your vehicle yourself? What have you tried so far?Customer: NoJA: Anything else you want the Mechanic to know before I connect you?Customer: I had hit something in the road plus i just had my oil changed today

Lost pressure while driving now won't start. Smell gas when trying to start. Also sounds like the starter keeps going. Also keep loosing water an don't know where

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