Driving home from work yesterday in +25C and stuck in a traffic jam on the m'way when suddenly I could hear what sounded the fuel pump running continuously... re-started engine with no difference.
The sound stopped after a 4 or 5 mins and then restarted after a minute for around 15mins overall until I got going again and then the pump seemed to go back to normal. Any idea what is happening to do this? It did not sounds like the pump was running dry and I had 80% full tank.
Alex

Tin Top?
Sounds like the lift pump in the tank is on the way out..
Fiddley but usually easy to change..

Cyrstal ball required ---- car engine and fueling type and type of pump ?

[Edited on 24/8/16 by britishtrident]

Sorry Ginetta g27 running twin 40 carbs with a silver top
Pump right under the tank which looks like a Facit type and quite new

Silver top fuel pressure is away too high it should be below 2.5 psi

Zetec silver top Engine - Pump is not easy to look at atm

sure it wasnt the rad fan?

Definitely not the rad fan.. that was running as well :-) and I have a light that shows when this is on... the noise was from behind me and turned off when the engine was turned off something that the rad fan would not do!


Alex

Also does not sound like it is running dry...

nowt to worry about mine does the same in hot weather

Thanks Chris.. :-) could it be the fuel vaporising in the heat somewhere (pipes / carbs?)?
I guess the pumps are designed to last for years as long as their is petrol going through them to keep act as cooling.
Cheers
Alex

Daft suggestion, what ecu, is the fuel pump relay picking up the rad fan signal somewhere along the line?

do not think so.. the fan comes on most times I stop the car and have not heard the pump come on then...