Hi,
My car is Volvo 1988 240 GL sedan model.
I encountered an strange problem when trying to inspect an in-tank fuel pump problem.
Basically according to the "Hayne's Manual" I need to start the engine, pull out the fuel pump fuses, wait for the engine to stall and proceed to the remaining procedures (disconnect the cable, take out the fuel filler cap etc) to release the fuel pressure.
But after I took out the No 4 (in-tank pump fuse) and No 6 (main fuel pump fuse) which listed in my car's manual, the engine can still be started and continued to run without stall. I even took out all the remaining 16 fuse in the fuse panel, the engine still could not stop. And I checked other comonents such as horn, lights, they were disconnected as normal.
I don't know how to proceed my checking of the faulty in-tank fuel pump. Any suggestions will be greatly appreciated.
Thanks very much.
Regards
Martin