Skip the auto shop - Our mechanics make house calls

Symptoms of a Bad or Failing Air Diverter Valve

failing air diverter

Bad or Failing Air Diverter Valve Inspection

by a top-rated mechanic at your home or office

The emissions system of a car has many different parts that help to reduce the amount of pollution the car emits. The air diverter valve helps to put clean air into the system to push out pollutants, without letting the exhaust fumes out. This part works in conjunction with the air bypass valve and in most cases they will have to be replaced as a pair.

Many states have strict regulations regarding the emissions of the cars that are allowed to drive on their roadways. These strict regulations are just one of the reasons why keeping your car’s emission system in check is important. Having bad emission components can lead to your car letting off more harmful exhaust fumes. The last thing that you want is to be fined for emissions related issues due to neglecting to replace a bad air diverter valve.

HAVE SYMPTOMS OF CAR TROUBLE?
Get an $80 diagnostic
by a top-rated mechanic at your home or office.

Get a quote · Book an Appointment · Our expert mechanics come to you.

1. Car is running rougher than usual

Among the most noticeable signs that the air diverter valve is damaged is your car running sluggishly. The air/fuel mixture of your car is very important in keeping it running smoothly. Having a bad air diverter valve will throw this mixture off and cause the car to run and idle rough. Not having the full power of your engine when operating your car can create a lot of danger when trying to navigate the roadways so it is recommended that a professional mechanic replaces the failing air diverter valve.

2. Gas mileage is suffering

One of the biggest expenses that most people have is the monthly gas bill for their car. Getting good gas mileage is an essential part of saving money, but nearly impossible when you have a broken air diverter valve. The broken valve will cause the fuel to mixed too lean, which in turn causes a lot of gas to be wasted.

HAVE SYMPTOMS OF CAR TROUBLE?
Get your car fixed at your home or office.

Get a quote · Book an Appointment · Our expert mechanics come to you.

3. Check Engine Light is on

Another very common sign that you will notice when there is a problem with the air diverter valve is the check engine light being on. The onboard computer system that is built into your car will be alerted of the issues with the air diverter valve and will turn the light on to warn you. Getting the light checked will give you the answers you need to get the appropriate repairs done.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Still not sure about your car's issue?
Diagnose your car
What kind of issue are you experiencing?
Brakes are squeaking
Car is not starting
Car is overheating
Car is shaking (vibrating)
Fluids are leaking
Heating and A/C
Smoke or steam is coming out of the car
Warning light is on
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...
Insurance Requirements for Car Registration in Kentucky
The Kentucky Transportation Cabinet requires that all drivers in Kentucky carry liability automotive insurance, or “financial responsibility” in order to operate a vehicle legally and maintain vehicle...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...


Related questions

Q: Readiness code for emission

Hello. Since the vehicle sat for that long, you may have to drive it for about 500 miles before it resets. The key is varying your driving. You need to drive it at highway speeds, around town, stop-and-go driving, and...

Q: not shifting at running temp

This can be caused by quite a few different things, from a bad transmission, to a bad speed sensor. Your Durango will need to be connected to a scanner so that all the relevant data can be observed. What is...

Q: I am burning WAY too much gas for the year and maintenance quality of the car

Hi, thanks for writing in. This may be a sign of a clogged catalytic converter. As you may already know, the catalytic converter converts toxic exhaust gases into less harmful pollutants that are suitable to be expelled into the atmosphere....