Intermittant fuel pump and fuel gauge reads low

[dougdee123]

I have a '97 900 XS with a 2.0l non turbo engine.

For the last month or so the fuel gauge has read too low. When full it reads about 2/3 full and seemingly varies at random after that. I thought it was all a bit hard (and expensive) to replace the FP assembly so I started monitoring the mileometer and filling after about 250 miles.

But yesterday, the 900 died on a customer's driveway with no fuel pumping. When the AA came and sprayed starting fluid into the inlet duct it started after some effort and then drove home.

I have a theory that the problem might be the relay rather than the pump since the earlier problem with the fuel reading level. Anyone have a view on this?

As always, I'm grateful for any input to the problems this car finds to keep me occupied.

Doug

[earthworm]

Even as they share the same housing, there is no relationship between the FP(fuel pump) and the level transmitter.
A better test of the FP is to tap the tank with a mallet...if this vibration causes the FP to run again.......
If the FP is original - renew it.
The relays seem to last forever.....whatever that means.

[dougdee123]

OK - Thank you for that. I was hoping for a low difficulty fix but it looks as if I'll have to bite the bullet and get on with it.

I'll try the mallet job as well to see if I can move it somewhere more convenient for working on it.

Thanks again.

Doug