Question about Kymco 2011 UXV 500 4x4
, usually due to a leaking fuel line or malfunctioning fuel injectors. However, it is normal for a small amount of gas to get into the engine oil during normal engine operation.
Posted on Jan 04, 2019
it sounds like the injectors are not opening up man.. replace the injectores and this should fix your problem..good luck keith....
Posted on Mar 21, 2009
It sounds like the engine is pulling fuel from the tank, and not replacing it with air, causing a vacuum to build in the tank. The vacuum, may build to the point that it resists the fuel pump's efforts to **** fuel from it. If the vacuum is sufficient, it may collapse the tank, or expand the fuel enough for the engine manifold vacuum to **** raw gas into the evaporative emissions control system, hence the cannister.
Replacing the fuel pump, and filter will both break this vacuum, and make it run well for a few more miles, until the vacuum builds again.
The tank is usually vented to relieve pressure and vacuum through the gas cap.
Basically, sounds like a bad gas cap.
Try driving with the cap loose or removed. If that fixes it, buy a new cap. Preferably a locking one, as the amount of fuel these trucks hold is pretty tempting to less than honest folks. My 1990 C2500 has a 34 gallon tank.
Coil?? with the other symptoms, how'd you come up with that?
Posted on Apr 08, 2009
SOURCE: 91 firebird won't stay running
alot of people dont know about the pulsater located in the tank attached to the fuel pump. It will fail after age and many additives (any thing with ethonol) like dry gas will cause the seals in it to rot!!! Just replace it or just swap it with a piece of hose. Hope this helps ive had to do it twice (on an 85 & 1991 trans am)
Posted on May 18, 2009
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