Selling your classic car? It's FREE to list your car on Honest John Classics | No thanks

Why are there petrol fumes in my 1997 Volvo V70?

I have petrol fumes in cabin of my Volvo V70 T5 1997. Driving normally the fumes are not too much of a problem, however, when coming to a halt it is noticeable in the cabin. It has been checked during service and unfortunately following different checks i.e smoke test evap system deemed sealed crank shaft sensors replaced. It can also be noticed during turning. I have seen reports similar to mine from other Volvo drivers. I would be pleased to hear your thoughts?

Asked on 13 November 2024 by Paul G Hammond

Answered by Craig Cheetham
The most common cause of this issue is a perished seal on the top of the fuel tank, where the fuel pump feeds in. The in-tank pump is accessed via a hatch under the back seat for ease of replacement. What tends to happen is the seal contracts in colder weather, so fuel tank vapour drift into the cabin. If there's no fuel leak evident and the tank and fuel lines don't feel damp, it's most likely to be the source of your problems.
Similar questions
I am familiar with the Crit' Air LEZ requirements which are becoming an increasing problem for owners like me who enjoy touring in various classic cars, i.e. cars built pre 1996 (in some cases very much...
I want to drive through France down to Spain in a Mercedes 320SL 1995 registered convertible. Simply do I need one of these sticker please, bit of a grey area?
I have owned my low mileage 1993 Honda Accord for 11 years, but am now experiencing enormous difficulty finding replacement parts for it, mainly because Honda Europe decided not to stock them any more...