I purchased a Stant Locking Gas Cap on eBay, only to learn from talking to a Stant Rep that it was probably the incorrect cap for the H2.
-----Original Message-----
From: John Blommel [mailto:jblommel@stantinc.com]
Sent: Tuesday, July 29, 2003 8:40 AM
Steve, the Stant 11589 is not the correct part number locking fuel cap for your 2003 Hummer H2. The 11589 is for use on mid 80"s Dodge Charger and Plymouth Turismo applications. Using this cap will probably fail an OBD II test. Your Hummer has an OnBoard Diagnostics system that periodically checks the fuel system including the cap for leaks. If an excessive vapor leak is detected, the "check engine" light will come on. You will then have to return the vehicle to the dealer to have the light re-set. If the cap is not changed, the light will keep coming on.
Stant recommends our boxed 10504 or carded 11504 cap for your vehicle.
Contact Stant customer service at 800-822-3121 extension 330 with any questions you may have.
John
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