Lexus GS430 Fuel Injector Replacement Costs

Estimate price near me

Service Location

Customer Ratings

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.

See availability

Customer Ratings

Fuel Injector Replacement Service

How much does a Fuel Injector Replacement cost?

On average, the cost for a Lexus GS430 Fuel Injector Replacement is $2222 with $1844 for parts and $378 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2001 Lexus GS430V8-4.3L	Service typeFuel Injector Replacement	Estimate$4152.06	Shop/Dealer Price$5092.73 - $7872.20
2004 Lexus GS430V8-4.3L	Service typeFuel Injector Replacement	Estimate$4125.03	Shop/Dealer Price$5056.42 - $7828.94
2007 Lexus GS430V8-4.3L	Service typeFuel Injector Replacement	Estimate$4081.23	Shop/Dealer Price$5011.78 - $7783.67
2005 Lexus GS430V8-4.3L	Service typeFuel Injector Replacement	Estimate$4125.03	Shop/Dealer Price$5056.55 - $7829.16
2006 Lexus GS430V8-4.3L	Service typeFuel Injector Replacement	Estimate$4081.23	Shop/Dealer Price$5018.74 - $7795.84
2002 Lexus GS430V8-4.3L	Service typeFuel Injector Replacement	Estimate$4125.03	Shop/Dealer Price$5057.29 - $7830.45
2003 Lexus GS430V8-4.3L	Service typeFuel Injector Replacement	Estimate$4125.03	Shop/Dealer Price$5056.63 - $7829.30

Show example Lexus GS430 Fuel Injector Replacement prices

What is a fuel injector and how does it work?

A fuel injector is a fuel metering device that sprays atomized droplets of fuel in a specific pattern into the engine’s intake manifold or directly into the combustion chamber. The injector has a solenoid and valve within and the operation, or pulsing, of the solenoid is controlled by the powertrain control module (PCM). The PCM controls the solenoid’s “on” time in order to keep the air-fuel ratio optimized while the engine load and operating conditions constantly change. Fuel injectors are usually connected to a fuel rail located on the top of the engine and the fuel rail, in turn, is supplied with fuel under pressure from the fuel pump located in the fuel tank.

When to consider replacing a fuel injector:

Rough idle, loss of power, or misfiring. Poor engine operation has many causes but faults in the fuel injection system, including the fuel injectors, are high on the list of possibilities.
Odor of raw gas or visible leaks. Fuel injectors should not leak fuel into the intake manifold when the car is off. If you notice any fuel odor around your car, the possibility of a leaking fuel injector should be considered. There should be no external leak from a fuel injector. If an externally-leaking injector is suspected, do not start your car due to the fire hazard.
Check engine light. Some fuel injection failures, for example, a faulty solenoid, may cause a trouble code to be set in the PCM and that will cause the check engine light to illuminate. The codes are read and the fuel injector is tested directly, as needed.
Major engine repairs, engine replacement, or lengthy storage. All fuel injectors will have deposits given enough mileage. These deposits can cause an imbalance in the performance of the injectors from cylinder to cylinder. When an engine is already disassembled, or if you are installing a new engine, that is a perfect time to service the injectors as a set. All injectors have tiny internal filter baskets. A professional injector service facility will clean each injector ultrasonically and replace these filters for a relatively low cost.

How do mechanics replace a fuel injector?

Injectors can be serviced once removed from the car or replaced outright with new injectors. If the injectors are serviced, specialized cleaning and test equipment are required. The choice to repair versus replace will depend on exactly what is wrong with the injector as well as customer preference. Either option requires removing the injector from the car and the following procedure is typical:

Once the engine is cold, the pressure within the fuel rail is relieved by briefly running the engine with the fuel pump fuse out.
The upper plenum on the intake manifold is removed along with any cables, hoses, or wiring that restricts access.
The supply and return lines are removed from the fuel rail. The electrical connectors to each fuel injector are unlocked and removed. The fuel rail is then unbolted and removed from the intake manifold.
The injector(s) requiring replacement are removed from the fuel rail, taking care to not allow any debris to enter the exposed openings. An O-ring seal usually holds the injector very firmly in a finely polished bore in the fuel rail.
Using a new O-ring, the serviced or replaced injector is re-inserted into the fuel rail — using engine oil on the O-ring to prevent damaging it. O-rings in this application fit very tight to prevent fuel leaks.
The fuel rail is re-installed and the supply and return lines are re-connected. The plenum is re-installed along with all cables, hoses, or wiring.
Finally, the engine is run, there is a careful check for leaks, and the vehicle is road tested.

Is it safe to drive with a fuel injector problem?

Yes, so long as there is no external leak of fuel from a broken or malfunctioning injector, it is safe to drive the car. However, if the injector is known to be malfunctioning, it can cause engine misfires, excessive emissions or, in the case of a badly leaking injector, can overload and overheat the catalytic converter. Additionally, fuel efficiency will always be diminished if the fuel injectors are not working properly.

When replacing a fuel injector keep in mind:

Using high quality (Tier One) gasoline may reduce deposits on fuel injectors and prolong their life.
If an injector problem develops that requires removal of one injector, the best practice is to remove and service all of the injectors at the same time. That service might involve replacement of the electrically failed injector along with off-the-car cleaning of the remaining injectors. Serving all injectors at once ensures the injector set will be balanced, in terms of flow rates, and in turn promote smooth operation of the engine.
Do not use fuel system cleaning compounds, or procedures, unless such materials are specified by the manufacturer of your car.
On the car cleaning of fuel injectors is not as effective as off-the-car cleaning because injectors have tiny internal filter baskets that should be replaced as part of the process of servicing a fuel injector.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Meet some of our expert Lexus mechanics

Real customer reviews from Lexus owners like you.

Excellent Rating

(39)

Rating Summary

37

2

0

0

0

37

2

0

0

0

SEE REVIEWS NEAR ME

Duy

16 years of experience

18 reviews

Duy

16 years of experience

by Dhaval

Lexus GS430 V8-4.3L - Serpentine/Drive Belt - San Mateo, California

He came before time and did a good job. He was honest enough to tell us what services are actually required for the car.

Diego

22 years of experience

564 reviews

Diego

22 years of experience

by Quateece

Lexus GS430 V8-4.3L - Fuel Pressure Regulator Replacement - Laveen, Arizona

Excellent mechanic 

Anthony

21 years of experience

17 reviews

Request Anthony

Anthony

21 years of experience

Request Anthony

by Tracey

Lexus GS430 V8-4.3L - Car is not starting - Atlanta, Georgia

It was a really great meeting Anthony! He has to be one of the coolest guys that I have ever met. Full of knowledge... from the first question he asked me with my reply of “yes”. He already knew what the problem was. Awesome!

Corey

13 years of experience

511 reviews

Corey

13 years of experience

by Wendy

Lexus GS430 V8-4.3L - Pre-purchase Car Inspection - Charlotte, North Carolina

Showed up on time, personable, thorough

Excellent Rating

(39)

Rating Summary

37

2

0

0

0

37

2

0

0

0

SEE REVIEWS NEAR ME

Recent articles & questions

How to Get a Kansas Driver's Permit

Kansas Kansas requires that all new drivers participate in a Graduated Driver Licensing program. The first step in this program is to obtain a learner’s permit, that graduates to a full license as the driver gains experience and age, to...

How to Replace a Power Steering Belt

Common signs of a failing power steering belt include a squealing noise and visible cracks, cuts, or nicks on the serpentine or drive belt.

The Story of YourMechanic

Why Why YourMechanic began The car repair industry, as it has stood for over a hundred years, is often met with skepticism. Car owners who aren’t car experts (which, let’s face it, is most of us) rely on the honesty...

Hello. i want the electronic component and circuit of vss ( with detail)

Unfortunately, this is a page meant for questions as to what could be wrong with a system of your vehicle and how to go about the repair. A little bit more information would be needed as to what exactly you...

Stalls on acceleration, must feather the gas pedal to increase rpm's to keep from stalling

It sounds like the ignition timing may be off a bit especially if you hear a pop noise when you do try to lean into the throttle too quickly. A timing light can be used to check the timing to...

Squeeking noise coming from front driver-side tire only

It is possible you have worn brake pads and the sensor is telling you the pads are worn down too far. Since you also had an ABS light come on you may have a bad bearing and sensor in that...

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