Hiss upon start up?

[ChrisD]

Hey guys, I have an 03 Blob and have just noticed an odd sound.

 

When i start the car there is a hiss, cant pin point it, but its around the back maybe, under the car, cant tell what side though.

 

the sound starts as soon as the car is started and then stops after about 30 seconds every time. 

 

what is this, a problem, a usual function not to worry about, or a snake trapped in my diff?

[stants]

Fuel pump priming ?

Get your lass to stick her head on the n/s passenger seat sould prime when you turn the key to ignition

[ChrisD]

N/s?

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[stants]

Sorry mate my auto correct going ma, off side haha

[ChrisD]

As long as there isn't a snake in my boot! (in the voice of woody from toy story)

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