Symptoms of Failure of Evaporative Emissions Canister in Your Vehicle
                     Symptoms of Failure of Evaporative Emissions 
Canister in Your Vehicle
Patrica Crewe
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What is an evaporative emissions canister
The main function of emission of vapor control system is to ensure fuel 
vapors are not released into the atmosphere. The emission control 
system often used in combination with fuel return lines in some 
vehicles. The emission control system limit the discharge of toxic gases 
from the engine and other components. There are three main sources of 
these gases: the engine exhaust, the crankcase, and the fuel tank and 
fuel ignition system
What is an evaporative emissions canister
The main function of emission of vapor control system is to ensure fuel 
vapors are not released into the atmosphere. The emission control 
system often used in combination with fuel return lines in some 
vehicles. The emission control system limit the discharge of toxic gases 
from the engine and other components. There are three main sources of 
these gases: the engine exhaust, the crankcase, and the fuel tank and 
fuel ignition system
Symptoms of failure of emission canister
Failure emission test
The emission canister valve will clog and prevent the use of the fuel vapors. These fuel 
vapors will not get sent back into the emissions control system, leading vehicle to failing 
emissions test.
The toxic gases are released through the exhaust, causing the vehicle to fail the 
emissions test.
Blown gaskets
If the canister valve fails, pressure builds in the emissions systems causing the gaskets 
to blow open.
Damaged gaskets will leak oil into the engine and engine compartment.
This pressure is very high and even breaks the tight seal of the gaskets makes and 
cases oil leak.
How to replace the evaporative emissions canister
First, turn off the engine and locate the emission canister in your vehicle.
If your finding difficulty in locating emission canister go through the owners manual 
and find the location of the emission canister.
Raise the vehicle above the ground level through a screw jack.
Remove the bolts that are attached to the Evaporative Emissions (EVAP) canister .
Disconnect the vapor hoses from the emission canister.
Remove the canister from the bracket.
Disconnect the vacuum hose from the EVAP shut valve.fuel pump replacement 
Remove the fasteners that hold the EVAP shut the valve of the canister.
Install the emission canister valve, control shunt valve.
Install the emission canister to the bracket system.
Connect all vacuum hoses that you unscrewed before.
Make sure that all the connection are fastened.
After connecting start the vehicle and test whether the emission canister working 
properly are not.
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