hi palmer.i am happy that you solved your problem.this brickboard is great for everybody.good luck with your car and happy many miles.god bless.charles.

hi palmer,make sure it is not your electric antenna that keeps running after shutting down your engine.usually a bad antenna will keep running about the same time that you have stated.try to disconnect the electric plug at the antenna and shut the car off and see what happens.i hope this helps,good luck.charles.

My friend had the same problem on his 240. Turned out to be a problem with his ECU (that part was fried). On the 240, the ECUs are evidently interchangeable, so he got one at a junk yard. I know on the later Volvos, the ECUs are not interchangeable and you must get one from Volvo. I do not know about a 1994 940. Spook, do you know?

Dear Palmer,

Good a.m. and may this find you well. Are you 100% sure it's the fuel pump?

Could it not be the cooling fan that you hear?

The fuel pump typically shuts down the instant you stop the car, because switching-off the ignition cuts the flow of power to the pump.

Indeed, 940s are set up such that if the RPM/crank sensor - which sits atop the transmission bell housing - fails, the fuel pump stops working instantly. This ensures that if the engine stops turning - e.g., because of collision damage - that fuel does not get sent to the engine. This shut-down minimizes fire danger.

If, though, the fuel pump is actually running, that suggests there is an electrical fault, which should be seen by a Volvo specialist.

Hope this helps.

Yours faithfully,

spook