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Home >> Hummer >> 2009 >> H3 Base, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Controls And Fuel - 5.3L - Introduction) >> Description and Operation >> Fuel System Description >> Fuel Filler Cap
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Fuel Filler Cap

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Fig 1: View Of Filler Door And Tethered Fuel Filler Cap
GM300314Courtesy of GENERAL MOTORS CORP.

The fuel fill pipe has a tethered fuel filler cap. A torque-limiting device prevents the cap from being over tightened. To install the cap, turn the cap clockwise until you hear clicks. This indicates that the cap is correctly torqued and fully seated. A built-in device indicates that the fuel filler cap is fully seated. A fuel filler cap that is not fully seated may cause a malfunction in the emission system.