Oldsmobile Regency Fuel Injector Replacement at your home or office.

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Fuel Injector Replacement Service

How much does a Fuel Injector Replacement cost?

On average, the cost for a Oldsmobile Regency Fuel Injector Replacement is $706 with $524 for parts and $182 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1998 Oldsmobile RegencyV6-3.8LService typeFuel Injector ReplacementEstimate$1250.42Shop/Dealer Price$1517.33 - $2307.53
1997 Oldsmobile RegencyV6-3.8LService typeFuel Injector ReplacementEstimate$1238.71Shop/Dealer Price$1503.32 - $2291.80
Show example Oldsmobile Regency 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.

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Natnael

9 years of experience
5 reviews
Natnael
9 years of experience
Oldsmobile Regency V6-3.8L - Door Mirror Replacement (Passenger Side) - Potomac, Maryland
He installed a new outside, electric remote control mirror on my mother's car. On time; professional and cordial. I could not have expected more. Thanks.

Clarissa

28 years of experience
251 reviews
Clarissa
28 years of experience
Oldsmobile Cutlass Ciera V6-3.1L - Fuel Injector - Wayne, Pennsylvania
Clarissa was extremely thorough in repairing my car. I am very grateful for her dedication in making sure that my car runs well and her attention to detail and insistence that all potential issues concerning the running of my car are resolved. She is always cheerful and seems to enjoy showing my mother and me what maintenance we can perform to keep the car running well.

Scott

39 years of experience
607 reviews
Scott
39 years of experience
Oldsmobile Cutlass Ciera V6-3.0L - Starter - Denver, Colorado
Scott was wonderful - showed up ahead of time and was very personable and professional. Took care of the starter problem with the car and did so very timely thanks to his years of experience. I would definitely recommend him as he really knows vehicles - got right to work - and most importantly - got the job done right the first time! He was also very thoughtful to try starting the car more than once after the repair to make sure it did indeed function properly so that I would not have anything to worry about and now - I'm back on the road again! Thanks, Scott - exceptional experience and am extremely appreciative of your prompt professionalism and expertise. Wonderful mechanic! Thank you again!

Michael

49 years of experience
124 reviews
Michael
49 years of experience
Oldsmobile LSS V6-3.8L - Serpentine/Drive Belt - Memphis, Tennessee
Nice guy, honest, and was right on time. Would highly recommend.Next time my car needs work, I'm asking for him.

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