Fuel pressure regulator dying?

[Black Beauty]

Hi,

Car is running a bit off, ie starts ok, but then gradually stalls. When i listen closely, i can hear some sucking llike sounds: a bit like a sharp intake of breath.

Could this be an issue with the fpr, as i've never heard this sound before?

Cheers
Spence

 

[zcacogp]

Or the fuel tank breather isn't working?

 

[Black Beauty]

There's no smell of fuel in the cabin, though which would normally point to the tank breather. Wouldn't it?

 

[peanut]

ORIGINAL: Black Beauty

There's no smell of fuel in the cabin, though which would normally point to the tank breather. Wouldn't it?

no not necessarily[]

if there was a leak between the tank and filla cap you would smell petrol all the time because the fuel system is pressurized.

There are a few areas to check but if you suspect a fuel pressure problem you need to put a guage on the system to check the fuel pressure is to spec for your enginewhich I believe should be 2.5bar for a 2.5lt.

There are numerous detailed threads on how to do this if you do a search.
If you find the system is losing pressure things to check... FPR valve, injectors, fuel pump, non return valve,and of course fuel pipes