The pump lies after the exhaust manifold and before the catalytic converter of the vehicle and it can reduce carbon emissions by pumping fresh air from outside into the exhaust stream.
Where is the secondary air injection pump located?
The secondary air injection pump is usually located on the engine or at least in the engine bay . It can sometimes be hidden deep into the engine bay, but mostly you will find it installed pretty visible on the engine.
What are the symptoms of a bad secondary air pump?
- Check Engine Light.
- Failed Emissions Test.
- Weak Acceleration.
- Engine Stalling.
- Low Idle.
How much does it cost to replace an air injection pump?
The average cost for an Air Pump Replacement is between $457 and $555 but can vary from car to car.
How do I know if my smog pump is bad?
One of the first symptoms of a bad or failing smog pump is a rough running engine. When a smog pump fails the finely tuned air-fuel ratios can be upset , and it will negatively affect the performance of the engine. The engine may have trouble idling, and may drop in engine speed, or stall when the pedal is pressed.
Can you drive without secondary air pump?
You will be fine driving to work in the morning . You will get or already have a CEL for hose being disconnected. The pump only runs for a minute or so on cold start to help burn exhaust gases and heat up the O2 sensor. The reason for the brown color is most likely due to rust from condensation in the pump.
How do you test a secondary air injection pump?
- Loosen the connecting hose on the secondary air non-return valve leading to the secondary air pump. ...
- If there are deposits on this side of the valve (finger test, see Fig. ...
- Inspect the secondary air pump and replace it if necessary.
What does a bad air pump sound like?
A bad air pump can make a howling noise . ... You should hear a faint vacuum-cleaner sound for about 30 seconds as your air pump operates. The lack of this noise can indicate that the pump is not working.
Can I drive with a bad air pump?
While failing a smog test is a serious enough problem, the real danger from a bad air pump is the possibility that reduced engine performance and driveability could cause be hazardous to your driving safety.
Do you need a secondary air pump?
The system is critical to help cars achieve government emissions standards. So, the law says you need a secondary air injection system. Which begs the question: Does a car need a secondary air injection system to run? Strictly speaking, no, it doesn’t .
How much does it cost to fix a secondary air injection?
If your secondary air injection system is failing or damaged, then the secondary air injection system repair cost will run between $270 and $390 . The labor should usually cost under $100, while the parts cost on average run at around $250.
What does the air injection pump do?
Pump Type: The Air Pump, or Air Injector Reactor (AIR), system design is commonly referred to as the smog pump. The smog pump is responsible for supplying fresh, pressurized oxygen into the exhaust stream near the exhaust manifold .
How do you fix a secondary air injection pump?
- Replace both the air pumps and the one-way check valve.
- Try and clean the air pump and test it. The one-way air check valve must be replaced as well.
- Replace the inlet hose of the air pump.
- Replace the fuse of the air pump (you can find it under the hood)
How do you test a smog pump?
You just take the outlet hose off the rail and check if it is pumping air . If the pump is off the truck, you just spin the pulley and see if air comes out the outlet.
Can you remove a smog pump?
The air pump and hoses are easy enough to remove, you’ll need a shorter belt or get a smog pump idler pulley. ... The metal pipe leading behind the heads (injects air into the cylinders) can be removed or capped off .
Does a smog pump run all the time?
During a cold start, the secondary air pump may only be in operation for a maximum of 90 – 120 seconds. The secondary air pump is not designed for continuous use !
