Fuel Injector Replacement near St. Louis, Missouri

There are 20 RepairPal Certified locations for Fuel Injector Replacement, all with a minimum 12,000-mile/12-month warranty.

20 Results for Fuel Injector Replacement near St. Louis, Missouri

Fuel Injector Replacement can be completed at all of these locations, along with other repairs and services.

Fairway Automotive - S Kingshighway Blvd

4.5

(703)

5.74 mi

5208 S Kingshighway Blvd

St. Louis, MO

Closed

Opens 7:30 AM Mon

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Big Bend Automotive | Car repair and maintenance in Maplewood

4.4

(10)

7.19 mi

2804 South Big Bend Boulevard

Maplewood, MO

Closed

Opens 8:00 AM Sat

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Auto Evaluators

4.5

(819)

8.57 mi

7721 Watson Rd

St. Louis, MO

Closed

Opens 10:00 AM Sat

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CarSmart Auto Service

4.4

(364)

9.01 mi

7921 Watson Rd

Marlborough, MO

Closed

Opens 7:00 AM Mon

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Sant Automotive

4.8

(71)

10.3 mi

8720 Watson Rd

St. Louis, MO

Closed

Opens 7:30 AM Mon

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Fairway Automotive

4.7

(665)

10.37 mi

8750 Watson Rd

Crestwood, MO

Closed

Opens 7:30 AM Mon

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AutoMax of St. Louis

4.2

(15)

11.06 mi

9525 Saint Charles Rock Rd

St. Louis, MO

Closed

Opens 9:00 AM Sat

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Complete Auto Body & Repair Hazelwood

4.5

(14)

13.39 mi

6041 N Lindbergh Blvd.

Hazelwood, MO

Closed

Opens 7:00 AM Mon

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Christian Brothers Automotive - Valley Park

4.4

(89)

15.91 mi

2941 Dougherty Ferry Rd

St. Louis, MO

Closed

Opens 7:00 AM Mon

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Christian Brothers Automotive - Arnold

4.9

(51)

17.12 mi

2190 Church Rd

Arnold, MO

Closed

Opens 7:00 AM Mon

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Fairway Automotive - Arnold

4.5

(413)

17.2 mi

1754 Jeffco Boulevard

Arnold, MO

Closed

Opens 7:30 AM Mon

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Pro Automotive Services

4.9

(122)

17.25 mi

1095 Edwardsville Rd

Wood River, IL

Closed

Opens 8:00 AM Mon

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View All 20 Locations

Fuel Injector Replacement

How are fuel injector issues diagnosed?

If fuel delivery system symptoms are present, the technician will first conduct a visual inspection. If the issue isn't clear after a physical inspection, the technician will connect a computerized scanner to the vehicle to read some of its sensors. If there's a fuel injector problem, the technician would most likely find that misfires are happening frequently on one cylinder. The fuel injector or injectors in question must be tested, and may require removal for bench testing. Any failed components must be replaced, and the vehicle will be checked to ensure the problem is fixed.

How is a fuel injector replaced?

Typically, the intake manifold must be removed to access and replace the fuel injectors. This can be a large job that may involve draining the coolant and oil, removing many engine components, and replacing the intake manifold gasket. Some cars, though, are designed with plastic intake manifolds that do not have oil or coolant passages, making this process easier. Once access is available, the fuel injector is disconnected from the fuel rail and electrical connector and removed. The new one is then installed in its place.

RepairPal recommendations for fuel injector issues

When replacing fuel injectors, use high-quality, OEM parts. Keeping the injectors the same will ensure even power across the engine and a proper air-fuel mixture for all cylinders. This should result in smooth running.

What to look out for when dealing with fuel injector issues

When working with fuel, the battery should always be disconnected, and proper precautions taken against fire.

Can I replace the fuel injector myself?

This is not a DIY job. Fuel injector replacement should be left to a professional. The risk of fire is enough by itself, but this repair can also get very complicated. A good amount of knowledge goes into removing the injectors, intake manifold, fuel rail and other components, and if done wrong, it can further damage the vehicle.