Hi all,

So my '90 240 has been running less than great. Low idle, sometimes hard to start, infrequent random dying. Now, it won't start at all.

I disconnected the fuel line at the rail and ran the pump; it is working. In fact, when I reconnected the fuel line, the car started and ran for a few seconds. The pump relay is operational.

I suspect the fuel pressure regulator, but Bentley does not list a way to test it.

Fuel pressure is unknown. I'd like to be able to test it, but I'm a bit intimidated by the adaptors that must be fabricated.

Thanks,

Monty

 

I have a 90 DL 240 wagon. Recently, mine had the same symptoms as you listed. On a hunch, I pulled off the vacuum line to the Fuel Pressure Regulator, fuel came out, replaced the FPR, easy job, Started instantly, ran fine. I hope this helps.

darkdelta

 

If the '90 240 is an LH-Jetronic 2.2, then go to www.stepbystepvolvo.comfor a diagnostic guide on 740 no-starts. Fuel will come out of the fuel rail with a working in-tank pump and failed main fuel pump. If the main fuel pump has failed, your car will not start.