Smog y bombas de aire para GMC Envoy

Smog/Air Pumps for the GMC Envoy

The GMC Envoy was a midsize SUV that was manufactured from 1997 to 2009. While these GMC SUVs are no longer being made, there are still plenty of them on the road. Envoy owners who want to keep their emissions systems up to date should make sure all of the component parts are functioning, including the smog/air pumps.

The smog/air pumps for the GMC Envoy are an essential part of the secondary air injection system, and theyre responsible for sending clean air to the exhaust stream. The secondary injection system burns whatever fuel particles are left over after the combustion process. To burn fuel, pressurized air is a necessity. As leftover fuel passes through the exhaust system, however, it mostly encounters gases.

To ensure that the remaining fuel is burned rather than released into the atmosphere, the pump pushes air into the system. Via this process, the fuel residue is burned just after it leaves the manifold. If the secondary injection system starts to fail, the GMC vehicle will no longer meet the governments vehicle emissions standards.

When GMC Envoy drivers notice that their secondary air injection system is malfunctioning, they may need to replace more than just the pump. Additional components include:

• Air filter
• Air delivery manifold
• Injection tubes
• Anti-backfire valve
• Check valve

When the pump starts to go bad, GMC Envoy drivers may notice the following symptoms:

• Rough engine performance: The pump helps maintain the crucial air/fuel ratio. When it stops functioning properly, the engine may not receive the appropriate mixture for optimal performance. When this happens, GMC drivers may notice that their vehicle stalls, has trouble idling, or drops in speed without warning.
• Check engine light: When this process is compromised, the check engine light may come on. This can be indicative of any number of problems, but GMC drivers who suspect emissions-related issues may want to have their air pumps checked.
• Decreased horsepower: Because these parts help maintain the tune of a GMC Envoy, a malfunction can hinder horsepower levels. If this happens, drivers may notice inadequate acceleration or unusual hesitations.
• Howling sounds: When these parts go bad, GMC Envoy drivers may notice a howling sound coming from their exhaust system when they turn on their SUV.

When choosing an air pump to replace faulty components, Envoy drivers have several options. They can select parts manufactured by GMC. As long as they correspond with the Envoy model, theyre sure to be compatible with the existing components. Drivers can also choose aftermarket parts. These are not made by GMC, but because the Envoy is no longer produced, many of these options will be newer than GMC-designed alternatives; they may be equipped with better technology.