back pressure in fuel tank

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boilerman63
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back pressure in fuel tank

Post by boilerman63 »

hi i have a 1993 t4 camper it is petrol\lpg the problem is when i remove the the fuel filler cap
a lot of back pressure blows out. the breather pipe is clear i have ckecked it the filler cap seems ok
can anyone tell me where this pressure is likely to be coming from . can something be back feeding
into the tank.this is not ur normal expansion due to warm weather
Bad Weather Is Better Than No Weather

billy739
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Re: back pressure in fuel tank

Post by billy739 »

make sure its pressure - not suction.

common mistake.

when unlocked the cap blows off if its pressure!

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