Nissan Pulsar NX Throttle Body Replacement Costs

Car	Service	Estimate	Shop/Dealer Price
1990 Nissan Pulsar NXL4-1.6L	Service typeThrottle Body Replacement	Estimate$4091.08	Shop/Dealer Price$5054.10 - $7929.37

Car

Service

Estimate

Shop/Dealer Price

1990 Nissan Pulsar NXL4-1.6L

Service typeThrottle Body Replacement

Estimate$4091.08

Shop/Dealer Price$5054.10 - $7929.37

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.

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Sean

18 years of experience

111 reviews

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by Joan

Nissan Pulsar NX L4-1.6L - Car is not starting - Waldorf, Maryland

I had a recurring problem with my older car that was not starting after sitting for a few days. Sean is very knowledgeable and explained the issues very clearly He analyzed the "new" battery and found a dead cell. He gave me a quote of other maintenance things I would need in the future.

Lucas

30 years of experience

938 reviews

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by Matthew

Nissan Altima L4-2.5L - Throttle Body - Woodland Hills, California

Lucas was a quintessential mechanic. If every automotive service provider could be like him, we would live in a perfect world. He performed the job as expected and let me know of some other things on my car that will need service very soon that I had not been aware of. I would definitely like for him to work on my car again the next time I need a major service!

Travis

16 years of experience

165 reviews

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by Noel

Nissan Altima V6-3.5L - Throttle Body - Irving, Texas

Travis is an excellent mechanic.!! He explained every step of the process. He wasted no time in getting to work and resolving the issue. He asked questions and was very knowledgeable. I would recommend Travis to any person using this service. I will definitely ask for Travis on any car repairs I may have in the future.

James

27 years of experience

184 reviews

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by Starr

Nissan Altima L4-2.5L - Throttle Body - Nashville, Tennessee

Very helpful and on time

Nissan Pulsar NX Throttle Body Replacement at your home or office.

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Throttle Body Replacement Service

How much does a Throttle Body Replacement cost?

On average, the cost for a Nissan Pulsar NX Throttle Body Replacement is $548 with $310 for parts and $238 for labor. Prices may vary depending on your location.

What is the throttle body and how does it work?

When to consider replacing the throttle body:

How do mechanics replace the throttle body?

Is it safe to drive with a throttle body problem?

When replacing the throttle body keep in mind:

Meet some of our expert Nissan mechanics

Excellent Rating

Rating Summary

Sean

Lucas

Travis

James

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