Chevrolet Silverado 2500 EGR Vacuum Modulator 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

(17)

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

(17)

EGR Vacuum Modulator Replacement Service

How much does a EGR Vacuum Modulator Replacement cost?

On average, the cost for a Chevrolet Silverado 2500 EGR Vacuum Modulator Replacement is $209 with $114 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2000 Chevrolet Silverado 2500V8-6.0LService typeEGR Vacuum Modulator ReplacementEstimate$343.01Shop/Dealer Price$410.02 - $588.53
1999 Chevrolet Silverado 2500V8-6.0LService typeEGR Vacuum Modulator ReplacementEstimate$323.01Shop/Dealer Price$390.03 - $568.56
2001 Chevrolet Silverado 2500V8-6.0LService typeEGR Vacuum Modulator ReplacementEstimate$323.01Shop/Dealer Price$390.03 - $568.56
1999 Chevrolet Silverado 2500V8-5.3LService typeEGR Vacuum Modulator ReplacementEstimate$323.01Shop/Dealer Price$390.01 - $568.52
2002 Chevrolet Silverado 2500V8-6.0LService typeEGR Vacuum Modulator ReplacementEstimate$323.01Shop/Dealer Price$390.05 - $568.59
2000 Chevrolet Silverado 2500V8-5.3LService typeEGR Vacuum Modulator ReplacementEstimate$323.01Shop/Dealer Price$390.03 - $568.56
2004 Chevrolet Silverado 2500V8-6.0LService typeEGR Vacuum Modulator ReplacementEstimate$328.01Shop/Dealer Price$394.90 - $573.32
2003 Chevrolet Silverado 2500V8-6.0LService typeEGR Vacuum Modulator ReplacementEstimate$328.01Shop/Dealer Price$395.27 - $573.98
Show example Chevrolet Silverado 2500 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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Chevrolet mechanics

Real customer reviews from Chevrolet owners like you.

Excellent Rating

(17)

Rating Summary
17
0
0
0
0
17
0
0
0
0

Melvin

17 years of experience
221 reviews
Melvin
17 years of experience
Chevrolet Silverado 2500 V8-6.0L - Crankshaft Position Sensor - Atlanta, Georgia
Melvin was very knowledgeable as well as professional.Thank goodness.When my truck isn't moving I'm losing money.

Matthew

33 years of experience
1279 reviews
Matthew
33 years of experience
Chevrolet Silverado 2500 V8-6.0L - Oil/Fluid Leak - Norfolk, Virginia
Good guy

Jose

15 years of experience
213 reviews
Jose
15 years of experience
Chevrolet Silverado 2500 V8-6.0L - Serpentine/Drive Belt - Snellville, Georgia
Jose was punctual, professional, thorough, and very attentive to what I needed done. If you had a 10 star rating, he would earn that. This was my first experience with "Your Mechanic Services" and I will whole-heartedly recommend your firm, and especially Jose. It was a smooth experience from start to finish.

Patrick

33 years of experience
1449 reviews
Patrick
33 years of experience
Chevrolet Silverado 2500 V8-6.0L - Radiator - Austin, Texas
Great job! Very efficient and friendly.

Excellent Rating

(17)

Rating Summary
17
0
0
0
0
17
0
0
0
0
Number of Chevrolet Silverado 2500 services completed
187+
services done by our mechanics
TOTAL NUMBER OF EXPERT Chevrolet MECHANICS
1600+
experts on our platform

Recent articles & questions

What is a Certified Pre-Owned Vehicle?
Certified Pre-Owned or CPO cars are used cars that have been inspected and warrantied by the manufacturer. CPO programs cover car problems or defects.
P0121 OBD-II Trouble Code: TPS "A" Circuit Range Performance Problem
P0121 code definition Throttle Pedal Position Sensor/Switch (TPS) A Circuit Range Performance Problem What the P0121 code means P0121 is a generic...
The Traveler’s Guide to Driving in Cuba
Cuba Cuba is a beautiful country that has gone through many changes. Now that travel to the country is easier, many people are visiting to see everything that the country has to offer, including a number of historical sites, and...

What does the traction control system/StabiliTrack light mean in a 2012 Chevrolet Equinox?

The traction control system (TCS)/StabiliTrack Warning Light is located on your instrument panel. The TCS/StabiliTrack Warning Light can illuminate in two ways: 1. If the light comes on and stays on, then the TCS and possible the StabiliTrack system has...

If you got rocks in your gas tank, is it a big problem?

Hello. The problems you will have will be hearing the rocks move when you stop or take off. The other problem will be if the rocks were real dirty and may clog the pump (https://www.yourmechanic.com/services/fuel-pump-replacement) or filter (https://www.yourmechanic.com/services/fuel-filter-replacement). If the...

So I found out mt husband used castrol high mileage 5-w30 oil on my gmc terrain sle 2013 and im panicking. Is that oil okay?

The high mileage oil brand, and the specific viscosity rating (5W-30), that your husband bought for you is perfectly acceptable and you needn't worry at all. High mileage oil simply claims to have "extra" engine oil seal conditioners and perhaps...

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