Infiniti QX56 Throttle Body 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

(117)

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

(117)

Throttle Body Replacement Service

How much does a Throttle Body Replacement cost?

On average, the cost for a Infiniti QX56 Throttle Body Replacement is $874 with $734 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2012 Infiniti QX56V8-5.6LService typeThrottle Body ReplacementEstimate$1623.30Shop/Dealer Price$1996.68 - $3102.63
2013 Infiniti QX56V8-5.6LService typeThrottle Body ReplacementEstimate$1614.29Shop/Dealer Price$1984.57 - $3088.21
2009 Infiniti QX56V8-5.6LService typeThrottle Body ReplacementEstimate$1733.27Shop/Dealer Price$2133.34 - $3326.24
2010 Infiniti QX56V8-5.6LService typeThrottle Body ReplacementEstimate$1733.27Shop/Dealer Price$2133.34 - $3326.24
2011 Infiniti QX56V8-5.6LService typeThrottle Body ReplacementEstimate$1614.29Shop/Dealer Price$1987.19 - $3092.79
2007 Infiniti QX56V8-5.6LService typeThrottle Body ReplacementEstimate$1733.27Shop/Dealer Price$2133.59 - $3326.67
2005 Infiniti QX56V8-5.6LService typeThrottle Body ReplacementEstimate$1733.27Shop/Dealer Price$2133.37 - $3326.29
2004 Infiniti QX56V8-5.6LService typeThrottle Body ReplacementEstimate$1733.27Shop/Dealer Price$2133.34 - $3326.24
Show example Infiniti QX56 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 Infiniti mechanics

Real customer reviews from Infiniti owners like you.

Excellent Rating

(117)

Rating Summary
110
3
0
1
3
110
3
0
1
3

Kevic

21 years of experience
20 reviews
Kevic
21 years of experience
Infiniti QX56 V8-5.6L - Radiator - Stockbridge, Georgia
Very fast, efficient, knowledgeable! He has been recommended to my Father in Law and a number of others.

Milton

38 years of experience
239 reviews
Milton
38 years of experience
Infiniti QX56 V8-5.6L - Brake Pads Replacement (Front) - Las Vegas, Nevada
Great

Jim

22 years of experience
42 reviews
Jim
22 years of experience
Infiniti QX56 V8-5.6L - Spark Plug Replacement - Katy, Texas
Great job.

Mark

9 years of experience
38 reviews
Mark
9 years of experience
Infiniti QX56 V8-5.6L - Not able to change gears - Orlando, Florida
He was on time, professional, and competent.

Excellent Rating

(117)

Rating Summary
110
3
0
1
3
110
3
0
1
3
Number of Infiniti QX56 services completed
1287+
services done by our mechanics
TOTAL NUMBER OF EXPERT Infiniti MECHANICS
1000+
experts on our platform

Recent articles & questions

Symptoms of a Bad or Failing Auxiliary Battery
If you have multiple batteries in your vehicle, you may have to replace one if the vehicle won't crank, fluid is leaking, or the Battery Light is on.
All About Car Warning Lights
Your car has a variety of warning lights to let you know when a specific feature is on, or if a part needs service or maintenance.
How Long Does a Vacuum Pump Last?
Your Your car’s engine is a very complex piece of machinery. In order for it to function properly, there are a number of different components that will have to work together. Among the most important aspects of an engine is...

When should the seat belts be replaced?

The seat belts in your car are designed to last for the life of the vehicle, but if you are involved in an accident, they’ll need to be replaced if the pretensioner was activated. Pretensioners are one-time use equipment. Once...

Car wouldn't start in park today it had to be started in neutral got home didn't drive for 30mins now car won't start in any gears

Hi There, It sounds like you may have a problem with the neutral safety switch. Your vehicle has a neutral safety switch (https://www.yourmechanic.com/services/neutral-safety-switch-replacement) that will prevent the vehicle from starting when it is in any gear position other than park...

Transmmison range sensor

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