On Alfa number 15
AO Platinum Member
Join Date: Dec 2005
Location: United Kingdom
Re: whiff of petrol when stationary with fan on
A few things may cause this..
You say there is no leaks but the first place to check is where the fuel pipes attach to the injector rail. Often the leak is small so that you can't see it, but you can smell it.
Other causes are a sparkplug being loose (often accompanied by a ticking)
Or it may be the fuel vapour recovery solenoid which is faulty. Normally when a car is left stationary fuel vapour is collected in a carbon cannister under the driver side front wing. When the engine is started a solenoid opens and the vapour is sucked into the engine and burned.
If the solenoid has stuck the vapours will end up getting vented to atmosphere as the cannister will fill up.
I had one of these fail on my 145 QV and it gave the fuel smell symptoms. You can check it works by removing it from the car and applying 12v to the terminals and blowing through it.
You will never be cool driving a Vauxhall.