1982 244 died while cruising fine at 55mph.

[billofdurham]

The pump should have pushed fuel through if you tried long enough.

Bill.

[Zeeman1]

So do I need to check the fuel pressure regulator? If so, how do I do this?

[tito64]

I follow this it make me think if volvo has the same problem as the vortex motor, even if the fuel pump is running you still have to check if is delivering the right PSI I do not know the specifics for this system but if the PSI drops 5 lbs then the injectors can not do their job, follow the fuel line and between the firewall and the injector rail should be a test plug should look like an air plug for your tires maybe bigger not sure if the tester at autozone would fit either, but try to do your research on that. also check the camshaft positioning sensor there is some info in this site about how to test it. Good luck

[Zeeman1]

Thanks for the tips. I have not seen the test plug like you describe, but I will definitely look for it.

[steve850]

There should be enough places that you can carefully disconnect the fuel line to see how far fuel is being delivered. Starting right after the pump have someone turn the key to run for 5 seconds at a time while you point the end of the line into a bucket. If there's no gas, try cranking for 5 to 10 seconds; sometimes the 5 second "priming" cycle is enough to deliver fuel, sometimes you need to crank. In any case, move your way alonh the line, pulling the undercar filter, etc. you should eventually find out where the flow stops. Be careful that you don't let any "unfiltered" fuel up past a filter, the injectors really don't like it. You may have fuel all the way buy not enough pressure even with both pumps running.

Or course safety first, no smoking and all that and be careful with anything with an electric motor that could spark.
Years ago i made myself a very basic inline pressure guage with some bare gas line tubing st either end. If necessary, i've sometimes cut a fuel line under the car, stuck it in with hose and clamps and then used flared connectors to put it back.

You need at least 30 psi off the main pump.
Worst case, get 20 feet of gas line hose and a cheap inline filter, clamp it to the pump, run it along the ground and clamp it as close to the fuel rail as possible to rule out or prove the operation of the fuel pumps

One more thing. You mentioned a noisy main pump; if it sounds kind of "growley" that often indicates that it is trying to pump air. Some 200's have a hose inside the tank between the bottom of the pump and the top plate. If it has a hole in it and the level in the tank drops below it, it will cause the main fuel pump to suck air; so even though the in-tank pump spins, it may not be lifting the gas to the main pump.

If you can figure out a way to connect a hose to the back side of the under car pump, you can gravity feed it with a container a couple of feet above it.

Sorry to be long winded, and you probably know all of this already, but sometimes "too much information" helps

Cheers
Steve

[KnightAB]

Hi, this happened to me in a 1986 244. It was my distributor. It just crapped out. I had the car towed to my mechanic, he checked it and that's all that was wrong with the car. I see you replaced the distributor cap, but have you checked to see if the distributor itself is OK? It's worth checking, anyway. I can't remember what exactly went out on mine, but it died at speed on the highway, while cruising very nicely, and all of a sudden I lost power and the RPMs just started tanking toward zero. When I got to the side of the freeway and stopped the car wouldn't start again. No other symptoms before that.

[Zeeman1]

Steve, thanks for the suggestions, and taking the time to write. Too much information in my case is a good thing. I'm an OK driveway mechanic, but have not worked on this Volvo much because it just did not need anything before. The original owner had taken great care of it, and replaced a lot of parts. I will try to find other places to check for fuel pressure. I replaced the sock, and the small connecting hose on the in-tank pump, so I think I can rule out problems there, unless it has intermittent running issues. It worked fine with a short bench test. Do you know how long the fuel pump regulator next to the main fuel pump usually lasts on these cars? Thanks again.

[Zeeman1]

Knight, I appreciate your suggestions. Wow, your description of what happened to your car is exactly what happened to mine. I guess I will check the distributor after I get the fuel issue fixed. I'll have to research how to check the distributor. Thanks.

[KnightAB]

Sure thing! I hope it helps. That was one of the weirdest experiences driving I've ever had. My foot was still on the gas but the RPMs kept tanking to zero. Post back when you figure out what it is.

[steve850]

I don't know exactly which "regulator" you mean on this model - but to rule out any problems with the in tank pump without removing it again the gravity feed is still a good option