Porsche 944 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 Porsche 944 Throttle Body Replacement is $480 with $340 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1990 Porsche 944L4-3.0LService typeThrottle Body ReplacementEstimate$2650.86Shop/Dealer Price$3117.23 - $4382.67
1991 Porsche 944L4-3.0LService typeThrottle Body ReplacementEstimate$2165.93Shop/Dealer Price$2496.79 - $3421.28
Show example Porsche 944 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.

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Meet some of our expert Porsche mechanics

Real customer reviews from Porsche owners like you.

Excellent Rating

(18)

Rating Summary
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Kyle

14 years of experience
145 reviews
Kyle
14 years of experience
Porsche 944 L4-2.5L Turbo - Window Motor / Regulator Assembly Replacement (Driver Side Front) - Dallas, Texas
Kyle is fast, knowledgeable, and professional. I had the driver side power window motor go bad. He originally came out and inspected it, and verified that the motor was the problem, and noted that the regulator (the armature that does the actual lifting) was old and a bit weathered, suggesting I replace both at once. I sourced the parts myself, and scheduled Kyle to come back out to do the replacement. He contacted me ahead of time and offered to come earlier, as it was in both of our interests. He arrived on time, called upon arrival, made the repairs, and reassembled everything properly. I would highly recommend Kyle and plan to request his services when I have the timing belt and water pump replaced. (a normal Porsche 944 maintenance item every 30,000 miles.) Thanks again Kyle!

Michael

41 years of experience
131 reviews
Michael
41 years of experience
Porsche 944 L4-2.5L - Power Steering Belt - Columbus, Ohio
He is an excellent mechanic, knowledgeable and competent. Michael is also very friendly, I had a nice chat with him on his BMW project.

Rigoberto

12 years of experience
739 reviews
Rigoberto
12 years of experience
Porsche 944 L4-2.5L - Steering Rack/Gearbox - Chicago, Illinois
Rigoberto was extremely knowledgeable about all issues relating to my car. I really enjoyed learning from him and is pleased with the work he performed.

Patrick

33 years of experience
369 reviews
Patrick
33 years of experience
Porsche 944 L4-2.5L - Oil Change - Henderson, Nevada

Excellent Rating

(18)

Rating Summary
17
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1
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Number of Porsche 944 services completed
198+
services done by our mechanics
TOTAL NUMBER OF EXPERT Porsche MECHANICS
300+
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