Bruch

I just acquired a B4 after running B3s for 3 years or so now.
The B4 won't start. I'm charging the battery now as the prev owner ran it dead, gave up and dealt the car to me.
So the B4 has the fuel pump in the tank, right? My question is, should I be able to hear it running when I turn the key on, or do I have to stick my head under the back of the car and really listen?

Both of my B3's fuel pumps can be heard in the next county, ya know?

Thanks
Dave
Audi 90 count 4

Nkugs90

In the B4 it won't be as loud as the B3 but you should still be able to hear it.

VAP

with your head over the fuel tank access cover. Also the new Bosch fuel pump bodies are a high density thick-walled plastic whereas the originals were very thin aluminum walls so the newer style Bosch fuel pumps (manufactured in the last 5-6 years) are inherently quieter.

Cq20V

I know nothing about sedans but in my coupe the fuel pump is loud as hell.

Bruch

Even through the filler pipe. Guess I'll crack a fitting and I'll know for sure if its making and pressure then.

Thanks - all.

Dave

VAP

working/making pressure. But wrap that area with towels to absorb about 4 tblspns of fuel.

If there's no fuel under the fpr fuel pump is dead.

Bruch

Oooo, the fuel pressure regulator. I had to go outside and look.

Its snowing in western PA in the end of March. What's up with that?

Thanks for the feedback.
Dave