Mazda CX-5 Service & Repair Manual: Fuel Filler Cap
Purpose, Function
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Releases evaporative gas from the fuel tank if there is a malfunction in the evaporative gas passage between the fuel tank and the intake manifold. As a result, deformation of the fuel tank caused by evaporative gas pressure is prevented.
Construction
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The fuel-filler cap is installed to the fuel filler opening.
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The fuel-filler cap consists of a valves, retainer, and springs.
Operation
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When there is positive pressure in the fuel tank due to evaporative gas, evaporative gas is released into the atmosphere. When there is negative pressure, air is introduced to the fuel tank.
Fuel Filler Cap Inspection
Leakage Inspection
1. Perform the following tester (evaporative emission system tester (134-01049A))
self-test:
NOTE:
If the tester does not work correctly during self-test, refer to the ...
Fuel Filler Lid Adjustment
1. Verify that the gap and height difference between the fuel-filler lid and
body.
2. Loosen the bolts and adjust the fuel-filler lid.
Standard clearance
a: 1.7—3.7 mm {0.07—0.14 ...
Other materials:
Cylinder Head Cover
Purpose, Function
The cylinder head cover prevents foreign material penetration and engine
oil spatter.
The oil baffle plate reduces engine oil consumption by separating the engine
oil from the blow-by gas.
Construction
The lightweight cylinder head cover is made of ...
Oil Pump Removal/Installation
WARNING:
Hot engines and engine oil can cause severe burns. Turn off the engine and
wait until it and the engine oil have cooled.
A vehicle that is lifted but not securely supported on safety stands is dangerous.
It can slip or fall, causing death or serious injury. Never work ...
Car Navigation Unit Removal/Installation
CAUTION:
The audio unit communicates with the car-navigation unit and records the
presence/non-presence of the car-navigation unit when the ignition is switched
to ACC or ON (engine off or on) after connecting the negative battery cable.
If the commander switch is installed ...