No, it will attempt to start the same regardless of any fluid level.

If I was a betting type, I'd bet a nickel that this is a bad fuel pump relay.

I would in your shoes. You have more of these in listed in this one thread than I've seen in the real world and referenced in the forum this year . . . combined. They're becoming pretty hard to find. If you intend to keep these running and have the room etc. then it'* a no-brainer from my perspective.

. . . and "test parts" to use to test if a suspected-failed part is really failed before you buy a new replacement.

The first dent will pay for this "spare" car.

Looking forward to hearing how it does!

You might be right! I can not hear the pump when I turn the ignition key. Time to swap in the one from the 92..



Ok so I guess you have talked me into spending more money! The 92 Regal was my son'* first car and he bought it on his own. For a $800 car it has done good over the past 2 years with only needing a water pump and alternator but the car is pretty much shot.. I came across the 94 and thought, humm, there shouldn't be that much difference in the two so we would have spare parts. 1 or 2 years can male a lot of difference!



Me also!!!!

Thanks
Anna

You were 100% correct!
Interesting though. I did not think a car would run if the FPR was removed?
I took the cover off of the distribution box containing the FPR and the relay was just laying loose in the bottom of it. I had forgotten we pulled the FPR when we started working on the engine.

Thanks
Anna

I can't remember exactly what happens, but I believe there'* a redundancy to power the fuel pump when there is engine oil pressure. So the fuel pump wouldn't even prime until there was oil pressure. It was a fallback for relay failure I believe

Cool!

Yeah, the idea is that is a FPR fails before starting, you're not stranded. If it fails mid-flight, you're not endangered. You'll go to your qualified Buick dealership to get repairs under your own power with the complaint . . .

"my car takes a long time to start" . . .

. . . instead of on a wrecker with the complaint . . .

"my car has a Kenworth bumper stuck in it, and now it won't start also"

Based on the oil sender, if you turn it over enough, oil pressure will build then power the circuit.

So if the oil pressure drops to low or the sending unit goes bad, the fuel pump circuit will open?

Was just thinking about the second 94 we just bought and towed home. It ran ok when we test drove it but after we stopped to fill it with gas for the trip back, it started dying when you let off the gas peddle all the way. It would crank right back but you had to give it just a little throttle to keep it running. The PO told us about that before we bought it. WE had rented a U-Haul tow dolly after the test drive just in case we had a problem with the car so all we had to do was pull it on the dolly. The odometer says 66K so it shouldn't have a oil pressure problem if the odometer reading is correct.
We checked the coolant for combustion gas and the test fluid stayed blue like it should if everything is ok.... We checked the vacuum and it was steady at 19. We started to do a compression check but it was raiding a little... I hope we don't regret not doing that. The engine is pretty clean though with no signs of oil leaks from the top of the engine and the top of the transmission looks pretty clean with the rest of the engine compartment. everything looks original except where someone added a a flush kit adapter to the heater hose.

So we are still driving the 94 we replaced the head gaskets on and probably will to see how it does..
The 94 we just bought, I think we will get it running and drive it a bit more to see how it does but save it for a parts car and possible engine swap if needed.
Maybe advertise used 1992 parts on ebay?

We are Regal poor right now!

It only fires the fuel pump based on oil pressure if the fuel pump relay fails. With no fuel pump relay issues, it shouldn't affect it.

What rjolly87 said ^^^^^^^

Think of it this way: You have a light bulb that can be turned on by two switches. One switch is the FPR, and the other is the oil pressure sender. If either one or both are on then the bulb is on.