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Automotive Repair Car Troubleshooting Topics   Car Troubleshooting   Engine Troubleshooting   Engine Fault Codes   Electrical and Wiring   Transmission Problems Car Repair Topics   Car Making Noises   Car Stereo Repair   Heating or AC Issues   Motorcycles and ATVs   Tricks of the Trade   Truck Repair Advice Site Options:      Login   Sign up here! Latest Forum Post   1989 toyota pickup 3.0 crank no start I have a 1989 toyota pickup 3.0 crank no...   Strut spring orientation and strut mount tension nut 2017 Nissan rogue awd 2.5 L Put in Monro...   Transmission stuck in part, I have tried everything So I'm working on my elderly fathers 201...   2017 dodge journey LED headlights on/off randomly Year of vehicle 2017 Make of vehicle dod...   Kia Soul starter replacement issues! Okay so my car is a 2010 Kia soul 2.0 en...   Please Help - Knock sound & engine fail Hi all, Hoping to get some insight and ...   multiple warning lights 2013 GMC Terrain 130,000 miles 4 cylinde...   03 alero no low speed blower Good day everyone, I have a 2003 Olds a...   04 Chevy 2500hd tail light issues Help!!! I have changed my combo switch...   1999 Grand Caravan Sport not starting. Hi. I'm new here. I hope someone can hel...

Performance Question Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Car Troubleshooting Guest Anonymous Poster Sep 29, 2008, 5:53 AM Post #1 of 5 (1215 views) Performance Question Sign In Will a plugged or defective evaporation vent valve affect my gas milage? Tom Greenleaf Ultimate Carjunky / Moderator Sep 29, 2008, 7:12 AM Post #2 of 5 (1212 views) Re: Performance Question Sign In Depending on what this is it might not run at all for long or cause other issues?? T Jeff Norfolk Enthusiast Sep 29, 2008, 7:43 AM Post #3 of 5 (1207 views) Re: Performance Question Sign In No this will not affect gas milage. The EVAP vent valve just vents the vacumme off of the EVAP system(fuel tank and related components) after the system leak test has been performed. Usually when these valves fail they will fail open so the system can not hold vacumme causing the light to come on. Will need to be repaired to make light saty off but will not hurt the fuel milage. Jeff Tom Greenleaf Ultimate Carjunky / Moderator Sep 29, 2008, 7:49 AM Post #4 of 5 (1206 views) Re: Performance Question Sign In Morning Jeff! I was thinking not knowing what the heck this is or just what plugged off that a fuel pump could cause vacuum on the gas tank exceeding pumps ability. Laugh - imagine putting full vacuum like from an A/C vac pump on a tank to shrink it down for disposal - if you could plug all leaks that would be a trick- never tried that but it comes to mind for just that! T Guest Anonymous Poster Sep 29, 2008, 10:41 AM Post #5 of 5 (1199 views) Re: Performance Question Sign In Thanks Guys...I don't want to put anymore money into this thing.   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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