Extreme Fuel Pressure in tank
06-17-2005, 11:39 PM
#1
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Extreme Fuel Pressure in tank Well, I'm engaged in a process of trying to solve a random misfiring issue with my engine (a randomly occuring bad searching while I am driving, even without load). Anyways, we are thinking it is a possible fuel issue because when I go to fill up the tank, it seems like there is a lot of pressure in there when i open it. Any ideas if this is my problem and what could be the solution to this pressure?
06-18-2005, 08:52 AM
#3
thats normal for the cap to open and the thing to make a venting sound. it happens most after long trips and low fuel levels. the gas cap is also not vented on these cars. the fuel system is not gravity fed like old cars with the mechanical pump on the engine. since the pump is in the tank there is no reason to vent the tank. at least not with the gas cap anyway.
06-19-2005, 01:15 PM
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it actually happens to my car alot and excessive...it started when I installed a walbro 255 lph.. from granatelli motorsports... the evap system is n ow inop and it doesn't vent as needed so the motor doesn't evacuate any excess fumes, but it harmless to the car cause its still vented to the ozone lol..........