Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. Symptoms of a Bad or Failing Air Injection Hose

Symptoms of a Bad or Failing Air Injection Hose

air injection hose

The engine emission system that most cars are equipped with work to reduce the amount of pollution the vehicle emits. The air injection hose is a very important part of this system. This hose helps to provide extra air to the system in an attempt to convert the exhaust fumes into CO2. The air injection hose is exposed to a lot of heat, which can wear on it after a while.

Keeping a check on the air injection hose is important and should be part of the routine inspection done to the vehicle. This hose is usually made of rubber or plastic, which can make it susceptible to damage over time. Having a bad air injection hose can create a lot of problems and will make your car release more harmful gases into the atmosphere.

1. Noticeable signs of wear or damage

Having an air injection hose with visible damage is a surefire sign that it needs to be replaced. Due to the high temperatures that this hose is exposed to, it is only a matter of time before the hose fails. If you notice abrasions or even melted spots in the hose, then it is time to see about your air injection hose replaced.

2. Idling issues

If it becomes hard to keep a car idling for an extended period of time, then it may be caused by a bad air injection hose. When the hose becomes cracked or damaged, it will let the air in the vacuum system out. This will usually create problems with idling and can only be fixed by getting the hose replaced. Not being able to have the full power of your engine while idling can create a number of different dangers when traveling.

3. Check Engine Light is on

Among the most noticeable signs that there is an issue with your air injection hose is the illumination of the Check Engine Light. The onboard diagnostic system that is hooked to the engine computer will turn the Check Engine Light on as soon as a problem is detected. The only way to get to the bottom of why a Check Engine Light is on is by taking it to a professional and getting them to pull the codes from the onboard diagnostic system in your vehicle.

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 Find the Keyless Code on a Ford Explorer or Mercury Mountaineer
Many Ford Explorers and Mercury Mountaineers were manufactured with an option known as the Ford keyless entry keypad. Some models refer to it as SecuriCode as well. It...
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: Why Is it so Important That a Car Passes Emissions Testing?

Emissions testing provides several very useful functions for our daily lives. The combustion gases that come out of the tailpipes of our vehicles are comprised of carbon monoxide (CO), hydrocarbons (HC), oxides of nitrogen (NOx), carbon dioxide (CO2), and oxygen...

Q: Why is red oil warning light comes on and off - 2011 Chevrolet Cruze

One thing that could cause this is an oil pressure sensor fault. This sensor measures oil pressure signals which are electrical. There could be a mechanical issue with the engine. You would need to check oil pressure with a gauge....

Q: I have a 2010 Buick Enclave cxl and the engine light when on a week ago on Monday I took it to auto zone and they gave me a code f

Most emission codes will not result in a no crank condition. Once the cause of the no crank/no start fault is repaired though, you should still request a check engine light diagnostic so that the responding certified mechanic can find...