Air Diverter Valve:Part cost $80–$150, Labor 1 hour ($125), Estimated total $205–$275
Vacuum Hoses:Part cost $10–$20, Labor 0.5 hour ($62.50), Estimated total $72.50–$82.50
Solenoid:Part cost $30–$70, Labor 0.75 hour ($93.75), Estimated total $123.75–$163.75
Check Valve:Part cost $15–$40, Labor 0.5 hour ($62.50), Estimated total $77.50–$102.50
Gaskets/Seals:Part cost $5–$10, Labor 0.25 hour ($31.25), Estimated total $36.25–$41.25
Diverter Valve Housing
Remove any mounting hardware, then detach the valve from the engine assembly. Inspect the housing for cracks or wear, andcleanthoroughly using a suitable solvent. If damage is present,replacethe housing to maintain proper airflow control. Reinstall with new seals, ensuring all fasteners are tightened to the manufacturer’s specifications.
Vacuum Diaphragm
Disconnect the vacuum line and release any mounting clips or brackets holding the diaphragm. Check fortearsor signs of brittleness in the rubber membrane. Replace if necessary, then reattach the vacuum line and clips. Confirm the diaphragm moves freely under vacuum before final reassembly.
Air Diverter Valve Spring
Carefully remove the valve cover to access the spring. Look forbendsorcorrosionon the spring’s coils. Clean minor rust or dirt with a wire brush and lubricate lightly if the spring is otherwise in good condition. Reinstall following correct spring tension orientation.
Gaskets and Seals
Remove old gaskets and seals using a gasket scraper or similar tool.Cleanthe mating surfaces to ensure no debris remains. Install high-quality replacements to prevent air leaks. Secure all fasteners, then check for proper sealing by performing a leak test once reassembled.
Check Valve
Detach hoses or fittings connected to the check valve. Inspect the valve forclogsor stuck internal components. Use compressed air or a relevant cleaning agent to remove blockages. If the valve fails to hold pressure,replaceit. Reattach hoses securely and confirm correct directional flow.
Hoses and Connectors
Examine each hose and connector forcracks,leaks, or excessive wear. Remove any damaged component and replace it to maintain proper vacuum and airflow. Use hose clamps or connectors approved by the vehicle’s manufacturer, ensuring a tight seal during reinstallation.
Control Solenoid
Disconnect the wiring harness and remove solenoid mounting bolts. Inspect solenoid ports forcarbon buildupor debris. Lightly clean with an appropriate solvent, making sure not to damage electrical contacts. Verify proper operation with a multimeter. Reinstall, reconnect wiring, and clear any fault codes.
Mounting Brackets
Take off any brackets holding the air diverter valve.Inspectfor cracks, rust, or warping. Clean and straighten minor imperfections, or replace if severely compromised. Reattach brackets, ensuring correct alignment and secure fit to avoid unwanted vibration or valve displacement.
What is an Air Diverter Valve and what does it do

What is an Air Diverter Valve
AnAir Diverter Valveis a crucial component in various automotive and industrial systems. It is primarily used to manage the flow of air within an engine or a mechanical system, ensuring optimal performance and efficiency.
Functionality of an Air Diverter Valve
The main function of an air diverter valve is toredirect air flowto different parts of a system as needed. In automotive applications, it is often used in the exhaust system to control emissions and improve engine efficiency. By diverting air, it helps in reducing the amount of unburned fuel that exits the engine, thereby minimizing pollution.
Benefits of Using an Air Diverter Valve
- Improved Engine Performance:By optimizing air flow, the engine can perform more efficiently.
- Reduced Emissions:Helps in lowering the emission of harmful gases by ensuring complete combustion of fuel.
- Enhanced Fuel Efficiency:Proper air management can lead to better fuel economy.
In summary, an air diverter valve plays a vital role in maintaining the efficiency and environmental compliance of engines and other mechanical systems. Its ability to control and direct air flow makes it an indispensable component in modern technology.
Valve Housing
Signs of failure: Visible cracks or leaks, increased exhaust emissions, or noticeable decrease in engine performance. If you detect the smell of exhaust fumes in the engine bay, it may indicate a damaged housing.
Diaphragm
Signs of failure: Internal vacuum leaks resulting in rough idling or stalling. A defective diaphragm can also trigger the Check Engine Light and cause diminished fuel efficiency.
Check Valve
Signs of failure: Backflow of exhaust gases, leading to possible damage to other emission components. You may also notice hissing sounds coming from the valve area or abrupt power loss during acceleration.
Air Inlet Port
Signs of failure: Blocked or restricted airflow, which can manifest as reduced engine power or sluggish throttle response. Excessive carbon buildup at the inlet port is another red flag.
Vacuum Lines
Signs of failure: Cracked or brittle lines that cause leaks and lead to rough idling, higher emissions, or inconsistent engine performance. Loose connections can also cause erratic behavior under load.
Mounting Gasket/Seal
Signs of failure: Engine vacuum leaks at the connecting points, oil or debris collecting around the seal, and a whistling noise near the valve. Poor sealing can result in noticeable loss of engine power.
How It Works
- Get a quote online or set-up a time to have your vehicle looked at.
- Pick time slots that work for you, easily, online.
- We will confirm appointments and send reminders.
- Our mechanics bring everything that is needed to you.
- All you have to do is provided a safe area for the work to be performed.
What we need from you
- A safe place to work on your vehicle
- No working on the side of busy roads
- No working on unstable or steep surfaces.
- We do not perform repairs during severe weather.
- Authorization from a property owner or management.
- Repair work done in a parking lot or at your requires permission.
- We do not do repairs in areas restricted by law.
Common Questions
Service Area
Our primary service area is greater Grand Rapids and includes Comstock Park, East Grand Rapids, Grandville, Kentwood, Walker, and Wyoming
Our secondary service area is provided by our Belding location and includes: Belding, Greenville, Ionia and the sorrounding areas.
Contact us if you have any questions about where we provide services.