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Forum > Failed Smog Test > Question

1994 Saturn Sedan Failed EVAP Test

My Saturn failed evap and other emissions related. Where should I look first to repair?
Answer:

A smog repair station (or you) will need to trace your Saturn's EVAP leak and determine where the leak is at. Maybe something as simple as a new clamp or hose (part of the EVAP system) is all that's needed, or the problem may be more severe requiring the EVAP canister or purge solenoid be replaced. The first step is to find out where the leak is at.

 

Although EVAP systems vary they all contain one similar component. This component is the Charcoal Canister. The canister is responsible for storing gasoline vapors from the vehicle's fuel tank/s and carburetor float bowl (if applicable) until the engine is ready to burn them through the combustion process.

 

Your Saturn's charcoal canister is located either on the left or right front corner of the engine compartment. It is a black container filled with charcoal pellets that absorb fuel vapors. The number one fault which causes vehicle's to fail the EVAP test is broken, loose or disconnected EVAP fuel lines. It is necessary to trace the entire EVAP system in order to find the defective section and/or component.


posted by SmogTips Support

 

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