What is a air injection check valve?
The A.I.R. Check Valve is an emission control device that allows air into the exhaust system to help burn pollutants. Our A.I.R Check Valve is made to withstand the heat of the exhaust manifold. A necessary replacement item for passing inspection in certain states. Direct replacement for a proper fit every time.
How to diagnose a bad air injection pump?
Check the fault memory to see if there are any stored faults. You can easily rectify them if there is any. Otherwise, apply the actuator test to switch on the electric pump. This test is also useful in checking whether or not the combination valve is working.
What happens when the air pump check valve fails?
When the air pump check valve fails, it can lead to a variety of problems, notably a significant increase in the vehicle’s tailpipe emissions. Usually, when the air pump check valve fails, it will display a few symptoms that may alert the driver of a potential problem that should be inspected. 1. Exhaust fume odor
Why do you need a secondary air injection pump?
The secondary air injection pump (also referred to as a smog pump or SAI pump) is responsible for lowering the number of carbon emissions that come out of the tailpipe of a vehicle. This is necessary since a vehicle engine is never 100% efficient in the combustion process.
What are the symptoms of a bad check valve?
1. Exhaust fume odor. One of the first and most common symptoms of a bad or failing check valve is an exhaust fume odor. The odor is a result of exhaust leaking either from the valve housing, or through the actual check valve back into the secondary air injection system. The odor may become most noticeable at idle speeds.
What causes an air injection valve to get stuck?
The air injection system can get water or moisture in it. The pump flows the air and moisture into the valves, then the truck sits and the moisture rusts the valve stuck. There are all updated parts to put in.
How to know if your air control valve is bad?
5 Symptoms of a Bad Idle Air Control Valve (and Replacement Cost) 1 Intermittent Idle Speed. 2 Check Engine Warning Light. 3 Rough Idling. 4 Engine Stalling. 5 Load Causes Stalling.
How much does an idle air control valve cost?
That means you’ll need to pay both parts and labor costs. The average replacement cost of an idle air control valve is between $120 and $500. The parts could cost anywhere from $45 to more than $400, while the labor is only around $70. Of course, the labor cost really depends on the hourly rate of the mechanic.
What are the two codes for secondary air injection?
Told me the two codes were P0418 and P2441 – secondary air injection system control and secondary air injection system switching valve stuck bank 1. Told me the truck was basically shot.