Pontiac Grand Am EGR Vacuum Modulator Replacement at your home or office.

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EGR Vacuum Modulator Replacement Service

How much does a EGR Vacuum Modulator Replacement cost?

On average, the cost for a Pontiac Grand Am EGR Vacuum Modulator Replacement is $144 with $40 for parts and $104 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1996 Pontiac Grand AmV6-3.1LService typeEGR Vacuum Modulator ReplacementEstimate$354.51Shop/Dealer Price$422.52 - $601.78
2002 Pontiac Grand AmL4-2.2LService typeEGR Vacuum Modulator ReplacementEstimate$183.65Shop/Dealer Price$214.46 - $282.10
1992 Pontiac Grand AmV6-3.3LService typeEGR Vacuum Modulator ReplacementEstimate$332.51Shop/Dealer Price$400.53 - $579.81
1987 Pontiac Grand AmL4-2.0L TurboService typeEGR Vacuum Modulator ReplacementEstimate$332.51Shop/Dealer Price$400.51 - $579.77
1973 Pontiac Grand AmV8-5.7LService typeEGR Vacuum Modulator ReplacementEstimate$332.51Shop/Dealer Price$400.55 - $579.84
1989 Pontiac Grand AmL4-2.5LService typeEGR Vacuum Modulator ReplacementEstimate$332.51Shop/Dealer Price$400.53 - $579.81
1975 Pontiac Grand AmV8-6.6LService typeEGR Vacuum Modulator ReplacementEstimate$338.01Shop/Dealer Price$405.88 - $585.05
1980 Pontiac Grand AmV8-4.9LService typeEGR Vacuum Modulator ReplacementEstimate$338.01Shop/Dealer Price$406.29 - $585.77
Show example Pontiac Grand Am EGR Vacuum Modulator Replacement prices

What is the EGR Vacuum Modulator all about?

Your vehicle’s exhaust gas recirculation (EGR) system is used to reduce your engine’s emissions by lowering the combustion chamber temperature. This produces less nitrous oxides, and burns pollutants contained in the exhaust gas that are reintroduced into the intake manifold. If the EGR valve opens and allows exhaust gases into the intake, the engine runs more smoothly and efficiently. However, this is not the case at idle, when the engine needs the most vacuum for proper operation.

If the EGR valve opens at idle, you can experience a rough idle and possibly a knock. Engine power is negatively affected at low RPM’s. Engineers implemented a control that closes the EGR valve when the engine is running at lower RPM’s. The engine produces lower vacuum at lower engine speeds, so it’s natural that the control is modulated by the engine’s own vacuum. The EGR vacuum modulator is a diaphragm that closes when the engine vacuum drops to idle, and opens as soon as the vacuum increases. It’s also known as a vacuum modulated valve. If the EGR vacuum modulator is leaking vacuum, is blocked internally, or is leaking, the Check Engine light will come on and the engine may start to knock.

Keep in mind:

  • The EGR system assists in reducing engine emissions. An improperly operating EGR system can cause a smog test failure.
    • Vacuum hoses become brittle over time. Take precautions to not damage the vacuum hoses when working on the EGR system.

How it's done:

  • The EGR vacuum modulator is verified that it needs to be replaced. The engine top trim cover is removed to access the modulator.

  • The defective EGR vacuum modulator is removed from the bracket near the EGR valve and is disconnected.

  • The new EGR vacuum modulator is installed and reconnected.

  • The engine is started and the EGR vacuum modulator is tested for computer codes and operation.

  • The vehicle is road tested to ensure proper operation of the EGR vacuum modulator.

Our recommendation:

The EGR vacuum modulator does not have a replacement interval. It will likely need replacement at some time because it does contain a filter. It can be inspected any time a vacuum test needs to be performed on the engine vacuum. If the EGR vacuum modulator is deemed to be faulty, you will need to have it replaced by one of our expert technicians.

What common symptoms indicate you may need to replace the EGR Vacuum Modulator?

  • Check Engine light is on
  • Engine knock at idle
  • Engine idles rough

How important is this service?

The EGR system partly controls your vehicle’s emissions, and a faulty EGR vacuum modulator can cause your car to fail a smog test. In addition, your vehicle may not idle, or may knock at idle. It is recommended to replace a faulty EGR vacuum modulator as soon as possible.

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Joe

43 years of experience
827 reviews
Joe
43 years of experience
Pontiac Grand Am V6-3.4L - Brake Pads Replacement (Front) - Saint Petersburg, Florida
Joe was awesome. Showed up early , completed the work quickly and professionally. Car feels like new. Can’t recommend Joe higher. Fantastic service. I’ll definitely use your company and Joe specifically again.

Barry

32 years of experience
31 reviews
Barry
32 years of experience
Pontiac Grand Am V6-3.4L - Intake Manifold Gaskets - Kansas City, Missouri
Went well beyond what I expected!

David

36 years of experience
195 reviews
David
36 years of experience
Pontiac Grand Am L4-2.4L - Oil/Fluid Leak - Los Angeles, California
David was very knowledgeable and detailed about the problems ailing my car. He was very personable as well and answered any questions I may have had. Would definitely ask for him again and recommend him to others.

David

8 years of experience
36 reviews
David
8 years of experience
Pontiac Grand Am L4-2.2L - Car is not starting - Decatur, Georgia
David certainly knew what he was doing!

Excellent Rating

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Rating Summary
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