ac92pathfinder Posted December 2, 2009 Share Posted December 2, 2009 after i shut it off. im not sure if the fuel pump still running when the car is off. but it will shut off. did it to me yesterday morning and this morning. was wondering what the deal is. this morning when it did it i opened the fuel cap and it stoped once it released the air. Link to comment Share on other sites More sharing options...
Toby Posted December 2, 2009 Share Posted December 2, 2009 Pressure buildup leaking through the gasket the fuel pump sits at? Fuel pump would kick off you'd think when the truck shuts off. Can't keep pumping fuel to a motor that isn't running. I'm not 100% i'd have to hear it to really get an idea of where it's coming from/is Link to comment Share on other sites More sharing options...
ac92pathfinder Posted December 2, 2009 Author Share Posted December 2, 2009 i wondering if the fuel pump relay sticking? Link to comment Share on other sites More sharing options...
Kingman Posted December 2, 2009 Share Posted December 2, 2009 There are some models of vehicles that keep the pump running for a few seconds after the engine is shut off. I don't think ours is one of them, since mine has never kept running. Link to comment Share on other sites More sharing options...
ac92pathfinder Posted December 3, 2009 Author Share Posted December 3, 2009 this is new to me. i drive it every morning. Link to comment Share on other sites More sharing options...
tdz77 Posted December 3, 2009 Share Posted December 3, 2009 (edited) It sounds like fuel check valve is loosing its function. Check out this item (it should vibrate when you hear this sound): I have same issue from about two years, but it doesn't do anything else other then "farting" from time to time (especially a minute after turning off engine) so I don't bother. People say that if this valve is broken, it may cause long cranking times when starting (fuel line looses pressure), but in my case it is not happening (starts normally). I think it is on evaporation tube - so it does not have to do with fuel line pressure, but it releases pressure from fuel tank. Regards, TD Edited December 3, 2009 by tdz77 Link to comment Share on other sites More sharing options...
ac92pathfinder Posted December 4, 2009 Author Share Posted December 4, 2009 hasnt done it today i aint really worried. Link to comment Share on other sites More sharing options...
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