Lexus SC400 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 Lexus SC400 Throttle Body Replacement is $1529 with $1333 for parts and $196 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
1993 Lexus SC400V8-4.0L	Service typeThrottle Body Replacement	Estimate$6160.24	Shop/Dealer Price$7654.87 - $12118.92
2000 Lexus SC400V8-4.0L	Service typeThrottle Body Replacement	Estimate$2870.09	Shop/Dealer Price$3541.00 - $5543.65
1994 Lexus SC400V8-4.0L	Service typeThrottle Body Replacement	Estimate$6147.63	Shop/Dealer Price$7637.99 - $12098.84
1997 Lexus SC400V8-4.0L	Service typeThrottle Body Replacement	Estimate$6147.63	Shop/Dealer Price$7637.99 - $12098.83
1992 Lexus SC400V8-4.0L	Service typeThrottle Body Replacement	Estimate$6147.63	Shop/Dealer Price$7641.60 - $12105.15
1998 Lexus SC400V8-4.0L	Service typeThrottle Body Replacement	Estimate$2870.09	Shop/Dealer Price$3541.41 - $5544.35
1999 Lexus SC400V8-4.0L	Service typeThrottle Body Replacement	Estimate$2870.09	Shop/Dealer Price$3541.10 - $5543.82
1996 Lexus SC400V8-4.0L	Service typeThrottle Body Replacement	Estimate$6147.63	Shop/Dealer Price$7637.99 - $12098.83

Show example Lexus SC400 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 Lexus mechanics

Real customer reviews from Lexus owners like you.

Excellent Rating

(37)

Rating Summary

34

0

0

1

2

34

0

0

1

2

SEE REVIEWS NEAR ME

Omar

13 years of experience

287 reviews

Omar

13 years of experience

by Derek

Lexus SC400 V8-4.0L - Spark Plugs - Fort Lauderdale, Florida

Excellent work

David

2022 years of experience

2 reviews

David

2022 years of experience

by Mk

Lexus SC400 V8-4.0L - Car is not starting - Midlothian, Virginia

Saved me again. Awesome mechanic. :-)

James

32 years of experience

705 reviews

James

32 years of experience

by Joshua

Lexus SC400 V8-4.0L - Valve Cover Gasket - Irvine, California

Excellent service by James. Honest, friendly and well prepared.

Joshua

28 years of experience

709 reviews

Joshua

28 years of experience

by Edward

Lexus SC400 V8-4.0L - Power Steering Pump - Benicia, California

Josh is the best! Always professional and a pleasure to work with.

Excellent Rating

(37)

Rating Summary

34

0

0

1

2

34

0

0

1

2

SEE REVIEWS NEAR ME

Recent articles & questions

Symptoms of a Bad or Failing Shock Absorber

Common signs include vibrations while driving, swerving or nose diving when braking, longer stopping time, uneven tire wear, and leaking fluid.

Tennessee Speed Limits, Laws, and Fines

Following Following is an overview of the laws, limits, and fines as they relate to speeding traffic violations in the state of Tennessee. Speed limits in Tennessee 70 mph: rural interstates and some other controlled-access highways 55-65 mph: urban interstates...

Is It Safe to Drive While Taking Antihistamines?

Of Of course you know better than to drive while impaired by alcohol, and you would never drive while using illegal drugs. But what about those over-the-counter remedies that bring relief from common ailments, like the flu, a cold, or...

Car shakes and starts to die while idling

The battery dying is it’s own issue. It could be the battery itself, the charging system, or an electrical drain when the key is off. All of these will need tested to find the culprit. The engine running poorly and...

When I turn the steering wheel the low oil light turns on.

It's very likely that your car is low on oil. When you turn a corner, tho oil in the oil pan moves away from the oil pickup tube. When the oil level is low, the oil pickup tube becomes completely...

Hi my mom has a 99 toyota Camry and she just replaced her battery and now nothing works

There might be a pigtail cable on the battery cable that has been damaged. The battery cables usually have one or two smaller gauge wires that come off of the cable to power up other circuits. You can look at...

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 (844) 997-3624 · hi@yourmechanic.com