Mazda RX-8 Throttle Body 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

Throttle Body Replacement Service

How much does a Throttle Body Replacement cost?

On average, the cost for a Mazda RX-8 Throttle Body Replacement is $1298 with $1102 for parts and $196 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2004 Mazda RX-8R2-1.3L	Service typeThrottle Body Replacement	Estimate$2420.06	Shop/Dealer Price$2975.87 - $4631.94
2006 Mazda RX-8R2-1.3L	Service typeThrottle Body Replacement	Estimate$2407.45	Shop/Dealer Price$2960.78 - $4615.00
2005 Mazda RX-8R2-1.3L	Service typeThrottle Body Replacement	Estimate$2407.45	Shop/Dealer Price$2960.81 - $4615.06
2008 Mazda RX-8R2-1.3L	Service typeThrottle Body Replacement	Estimate$2407.45	Shop/Dealer Price$2960.81 - $4615.06
2007 Mazda RX-8R2-1.3L	Service typeThrottle Body Replacement	Estimate$2407.45	Shop/Dealer Price$2962.87 - $4618.67
2011 Mazda RX-8R2-1.3L	Service typeThrottle Body Replacement	Estimate$2407.45	Shop/Dealer Price$2961.01 - $4615.40
2009 Mazda RX-8R2-1.3L	Service typeThrottle Body Replacement	Estimate$2407.45	Shop/Dealer Price$2960.83 - $4615.10
2010 Mazda RX-8R2-1.3L	Service typeThrottle Body Replacement	Estimate$2407.45	Shop/Dealer Price$2960.81 - $4615.06

Show example Mazda RX-8 Throttle Body Replacement prices

What is the throttle body and how does it work?

The throttle body is an air metering device mounted between the air filter and snorkel, and the intake plenum. Within the throttle body is a movable throttle plate whose position controls the amount of air that enters the engine to determine engine speed. Throttle body designs vary. Some incorporate an idle air control valve, throttle position sensor, and other electronic throttle controls. The throttle plate in the throttle body can be controlled directly by an accelerator pedal cable or fully electronically in the newest drive-by-wire systems.

When to consider replacing the throttle body:

Check engine light and/or reduced power warning light is on. Most modern throttle bodies have electrical components, such as a throttle position sensor. These components are monitored by the powertrain control module (PCM). If the check engine light or reduced power warning light comes on, a mechanic will determine if any of the stored trouble codes implicate a throttle body malfunction.
Wrong idle speed. Carbon deposits in the throttle body, particularly around the movable throttle plate or in the idle air control valve, can cause the engine idle speed to be too low or too high.
Poor transmission shifting. In some applications, transmission shift timing relies on signal outputs from the throttle body. If the throttle position sensor is defective, that might adversely affect shift timing and feel.

How do mechanics replace the throttle body?

The engine cover is removed, if necessary.
The flexible rubber snorkel from the air filter housing to the throttle body is disconnected. Typically, the connection is made with a large stainless steel hose clamp.
The electrical connections to the throttle body are removed.
If the throttle body is not a drive-by-wire system, the accelerator cable and cruise control cable are disconnected and set aside.
The bolts retaining the throttle body to the plenum, the gasket, and the throttle body are removed. If the throttle body is being cleaned and tested for re-use, approved chemicals are used in the cleaning process.
The new or serviced throttle body is re-attached to the plenum and the bolts torqued to factory specifications.
All cables and electrical connections are restored. The intake air snorkel is reconnected.
If applicable, the electronic throttle installation and idle re-learn procedures are performed using an appropriate scan tool.
Finally, the engine is started, brought to normal operating temperature, and idle speed is checked. The car is road tested to ensure normal operation and no illumination of warning or service lights.

Is it safe to drive with a throttle body problem?

Yes. But, the vehicle may be limited in power or put into what is referred to as limp mode, in order to get the vehicle to a repair facility. If the check engine light is on, or the electronic throttle control warning light is on, but there is no noticeable difference in engine performance, the car can be safely driven. However, it is best to have it diagnosed and repaired at your earliest convenience to avoid unexpected breakdown or possible damage to the catalytic converter.

When replacing the throttle body keep in mind:

Many modern throttle bodies have spring loaded sensors and plastic gears that are not intended to be manipulated directly during any diagnostics or inspections. These components are controlled electronically or generate signals. It is best to let a mechanic use approved tests to diagnose the problem.
Wiring faults, bad grounds, or bad terminal connections can make it appear as though an electronically controlled throttle has failed. A mechanic will always rule out all other causes before replacing the throttle body.
When cleaning the throttle body, special care should be taken to use only special spray cleaners designed to not damage electrical components or sensors.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Meet some of our expert Mazda mechanics

Real customer reviews from Mazda owners like you.

Excellent Rating

(103)

Rating Summary

92

6

1

1

3

92

6

1

1

3

SEE REVIEWS NEAR ME

Luis

16 years of experience

244 reviews

Luis

16 years of experience

by Ramon

Mazda RX-8 R2-1.3L - Spark Plugs - North Las Vegas, Nevada

Did a tune-up and Luis did a good job doing it. 5 stars for Luis again!!!

Rodney

37 years of experience

611 reviews

Rodney

37 years of experience

by Kala

Mazda RX-8 R2-1.3L - Bleed Clutch - Sacramento, California

Very helpful

Richard

22 years of experience

237 reviews

Request Richard

Richard

22 years of experience

Request Richard

by Joaquin

Mazda RX-8 R2-1.3L - Car is not starting - Lehigh Acres, Florida

Professional

Tony

15 years of experience

121 reviews

Tony

15 years of experience

by Bryce

Mazda RX-8 R2-1.3L - Pre-purchase Car Inspection - El Cerrito, California

Tony was polite and knowledgeable. I will call again when I need this service.

Excellent Rating

(103)

Rating Summary

92

6

1

1

3

92

6

1

1

3

SEE REVIEWS NEAR ME

Recent articles & questions

P2653 OBD-II Trouble Code: B Rocker Arm Actuator Control Circuit Low Bank1

P2653 means an open or shorted circuit in the B rocker arm actuator control circuit in bank 1 due to broken oil control valve or low oil levels.

P0801 OBD-II Trouble Code: Reverse Inhibit Control Circuit Malfunction

P0801 means an issue with the reverse inhibitor switch making the vehicle unable to be placed in reverse or capable of doing so while driving forward.

How to Avoid Muffler Repair

Mufflers break when debris builds in the undercarriage, the muffler rubs against driving surfaces, or there is smoke emitting from the engine.

Acceleration issue, RPMs increase but not speed

If your car is revving up but not moving, or is slow at gaining speed, then you have a slipping clutch. If you have a manual or automatic transmission it will still be a clutch issue. A mechanic with experience...

Tire pressure light check

There are a few different types of tire pressure monitoring systems in the car. Some just show you when a tire is low, some show individual tire pressure, and some will tell you exactly which tire is low. The Lexus...

VDC, Slip, service and car take a couple seconds to start.

Hi there. Check the master cylinder reservoir and see if the fluid is low. Low fluid in the brake system will cause the slip light to come on with the VCD light. Also, check the condition of the car battery...

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