What are the symptoms of the air injection pump on a tundra?
The air injection pump in a Toyota Tundra is a critical component that helps reduce emissions by injecting air into the exhaust system. If this pump fails, it can lead to a variety of noticeable symptoms that indicate a problem. Understanding these symptoms can help Tundra owners identify and address issues with the air injection pump before they become more serious.
Common Symptoms of a Faulty Air Injection Pump
- Illuminated Check Engine Light: One of the most obvious signs of a problem with the air injection pump is an illuminated check engine light on the Tundra's dashboard. This light is triggered by the vehicle's onboard diagnostics system when it detects an issue with the air injection system.
- Rough Idling or Stalling: A malfunctioning air injection pump can cause the engine to idle roughly or even stall, as the air-fuel mixture is disrupted. This can be particularly noticeable when the engine is cold or under load.
- Decreased Fuel Efficiency: A faulty air injection pump can lead to an increase in fuel consumption, as the engine is not operating at optimal efficiency. This can result in a noticeable drop in the Tundra's overall fuel economy.
- Excessive Exhaust Emissions: The primary function of the air injection pump is to reduce emissions by injecting air into the exhaust system. If the pump is not working correctly, it can lead to increased levels of harmful pollutants in the exhaust, which may be visible as black or blue smoke.
It's important to note that these symptoms can also be caused by other issues, such as problems with the catalytic converter or other components in the exhaust system. If you notice any of these signs in your Toyota Tundra, it's best to have the vehicle inspected by a qualified mechanic to determine the root cause and address the problem accordingly.
What are the symptoms of a bad air injection pump?
The following are the most common symptoms associated with secondary air injection pump failure.
- #1 – Check Engine Light.
- #2 – Erratic Idle.
- #3 – Reduced Performance.
- #4 – Failed Emissions Test.
- #1 – Poor Power/Ground Delivery.
- #2 – Compromised Vacuum System.
- #3 – Water Contamination.
- #4 – Age.
How much does it cost to replace the air injection pump on a Toyota Tundra?
The average cost for a Toyota Tundra Air Pump Replacement is between $1,173 and $1,338. Labor costs are estimated between $88 and $111 while parts are priced between $1,085 and $1,227. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.
What is the recall on the Toyota Tundra secondary air injection system?
Certain 2012 – 2014 Model Year Tundra and Sequoia vehicles have a software issue in their engine control module (ECM) that can, under specific conditions, cause a component known as the air injection pump to fail. This causes the vehicle to enter its “Fail-Safe” mode which is also known as the “Limp-Home” mode.
What are the symptoms of a secondary air injection pump failure in tundra?
The failed secondary air injection pump can cause fluctuation in power. For instance, in one minute your vehicle is performing well and in the other minute, you may face a drop in revs. Thus, you need to replace the pump to avoid continuous engine stalls and ensure a smooth drive.
What does deleting secondary air pump do?
This option removed the most obvious air pump components from the engine bay, providing a cleaner appearance and reducing the difficulty and time required to change the LH spark plugs.
How much does it cost to fix an air injection system?
The average cost for an Air Injection System Control Valve Replacement is between $544 and $589. Labor costs are estimated between $170 and $215 while parts are typically priced around $374. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.
How do I know if my secondary air injection check valve is bad?
Common symptoms of a bad AIR check valve include:
- Illuminated Check Engine Light.
- Increased Tailpipe Emissions.
- Damage to Other Parts of the AIR System.
What is the purpose of the secondary air injection pump on a Toyota Tundra?
The SAIS injects oxygen-rich ambient air into the exhaust manifold downstream of exhaust valves. It does this for approximately 30 to 90 seconds to allow the engine to get to operating temperature.
How do you check if the secondary air pump is working?
The function test for the secondary air pump can be performed when the engine is cold, as the pump will then be audible for up to 90 seconds. However, the test can also be carried out with the engine at operating temperature using a diagnostic tester or an external 12 volt voltage source.
How do you fix a secondary air injection system malfunction?
Inspect the air pump inlet hose. If necessary, repair or replace this component. If this does not fix the issue, replace the O2 sensor. This system is covered by the emissions warranty on some vehicles.
