To bring the matter up to date, I had a no start on my Regina NA 940 and checked both relays. Took a couple of light whacks at the mounting area on the fuel tank, through the access in the trunk, and the car started and died. My conclusion: after 214k miles my fuel pump failed.

Installed the new one Tuesday afternoon with some degree of difficulty getting the sending unit out and installing it back in again. New pump is an Airtech from Scantech and FCP. A little noisier than OEM AC pump because I did not use the sound deadening foam sleeve, but the car ran fine, in fact better than ever. Apparently the pump was failing for 'some' time and the boost in pressure improved performance.

When I replaced the plastic retaining ring that holds the sending unit in place on the tank flange I noticed I had to press down on the sending unit to get to seat whereby the ring would catch the flange threads.

Here is the problem. Yesterday it drove fine until the tank level got down to less than one-quarter full. When I stopped a signal or intersection, as the car comes to stop, the RPM's surge while my foot is on the brake. It drops way down then comes up to normal. Last night I filled the tank to one-half and the problem disappeared. On the way to the gas station it died twice on me, but restarted.

My diagnosis is that I don't have the bottom of the pump properly placed in the anti-slosh tray at the bottom of the tank and the pump is not in proper position. I am assuming I have to slightly withdraw and reposition the pump and sending unit.

I had a heck of a time getting this thing in in the first place. Any help on this subject is greatly appreciated. What is the best way to manuver the sending unit and pump into position?