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Mileage drop!   Printable Version Hummer >> Brand Reviews >> Drivetrain Area >> PCM & Fuel Systems >> Mileage drop! Page: [1] Login Message << Older Topic   Newer Topic >> Mileage drop! - 3/7/2007 5:23:47 PM    RJaggers   Posts: 4 Joined: 3/7/2007 Status: offline I was getting a consistent 11.3 GPM 1k miles ago. I am now getting 9.2. I have a 2003 H2 with 37k All normal maintenance done per schedule. Any ideas?? Post #: 1 RE: Mileage drop! - 3/7/2007 6:19:09 PM    littlehummerboy   Posts: 2176 Status: offline Unlock the emergency brake? (in reply to RJaggers) Post #: 2 RE: Mileage drop! - 3/7/2007 7:33:50 PM    Dennis   Posts: 7584 Status: offline Damn!..11.3 GPM?...Damn! I think, I'd even have to flip you off! (in reply to littlehummerboy) Post #: 3 RE: Mileage drop! - 3/7/2007 7:38:04 PM    littlehummerboy   Posts: 2176 Status: offline quote: ORIGINAL: Dennis Damn!..11.3 GPM?...Damn! I think, I'd even have to flip you off! Man, Dennis has eyes like a hawk!  Didn't even notice that.  Now my original reply seems to make even more sense! (in reply to Dennis) Post #: 4 RE: Mileage drop! - 3/7/2007 8:29:19 PM    blackstangs281 Posts: 6813 Joined: 11/13/2005 From: Pittsburgh PA Status: offline quote: ORIGINAL: Dennis Damn!..11.3 GPM?...Damn! I think, I'd even have to flip you off! Now that's funny. Maybe because they are in the middle of changing fuels???????   Or you just need a tune up??? _____________________________ (in reply to Dennis) Post #: 5 RE: Mileage drop! - 3/7/2007 9:02:39 PM    HummBob Posts: 15973 Joined: 5/6/2006 Status: offline Has your driving habits or the weather changed?? _____________________________ 2004 Black Hummer H2 2007 Black Escalade (in reply to blackstangs281) Post #: 6 RE: Mileage drop! - 3/7/2007 9:22:44 PM    RJaggers   Posts: 4 Joined: 3/7/2007 Status: offline Driving habits haven't changed. Winter hit, but I would think since the air is colder & thicker, the system should adjust the mixture. It never mattered in the past 3 years though. Pretty damn odd. (in reply to HummBob) Post #: 7 Login OR Register now to post a reply to this forum topic. Page:   [1]   Hummer Forum >> Brand Reviews >> Drivetrain Area >> PCM & Fuel Systems Jump to: Select a ForumAll Forums---------------------- [Hummer Forums - General] - - New Member Area - - Off Topic - - - - Sports Discussions - - Sights N Sounds - - General Hummer Talk - - Ride of the Month - - Meets, Events, and Shows [Hummer Lineup] - - Hummer H1 - - Hummer H2 - - Hummer H2 SUT - - Hummer H3 - - - - H3 Frequently Asked Questions - - - - - - Head and Valve Problems. - - Hummer H3T - - Hummer Concepts [Brand Reviews] - - Audio Visual/Interior Modifications - - Detailing - - Drivetrain Area - - - - Intake, Headers and Exhaust - - - - Nitrous, Super Chargers, & Turbos - - - - PCM & Fuel Systems - - - - Suspension - - Tire and Wheel [Sponsoring Vendors & Classifieds] - - Sewell Hummer Parts - - Member Group And Special Buys - - PRIVATE For Sale / Trade Classifieds - - Private 'Wanted' Classifieds [Other] - - Hummer Forums Help & Suggestion Center

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