2002-2004 Chevy Trailblazer Locking Gas Cap
Product Details Part Number: AM-30875404
New Locking Gas Cap.
Your fuel system uses both vacuum and pressure to ensure that as few gasoline vapors reach the air as possible. The gas cap regulates this balance. The cap has relief and pressure valves that regulate the pressure in the tank. Over time the gas cap can cease to work properly due to dirt, wear, and damage. In modern cars this will cause your check engine light to come on (usually after you fill up). If you notice your check engine light comes on after a fill up first check the cap for tightness. Then give the light a few days to go off. If your gas cap is the culprit then this replacement is what you need. Most cars the light will go out after 10-12 cycles of the key as long as nothing else is affecting the fuel vapor system.
10 Year Warranty
Effective June 23, 2014: This item is backed by a 10 Year Warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge (excludes shipping charges) for the original purchaser.
Please note: Any modifications to an item of any kind before contacting us will void any and all warranty coverage for this item. Please contact us before modifying the part so that we have the opportunity to correct the situation.