Whining fuel pump. (Page 1/1) Curlrup APR 11, 03:47 PM 2.8 I just purchased two weeks ago just started dying, while making a lot of whining noise from the center console. Starting it whirs fine and pressurizes the system, but as soon as it's running, whine noise, stumble and dies. I assume I'm replacing the pump? Patrick APR 11, 04:37 PM quote Originally posted by Curlrup: Starting it whirs fine and pressurizes the system, but as soon as it's running, whine noise, stumble and dies. I assume I'm replacing the pump? I assume there's plenty of gas in the tank? Don't laugh, you'd be surprised how often here that turns out to be the issue. What's the fuel pressure when it "stumbles and dies"? quote Originally posted by Curlrup Here: Just did a pressure test on the fuel system. 45 PSI on key on (pump kick in) 37 PSI running, then leaked down to 25 PSI slowly over the course of 30 minutes, then I had to make dinner so I just unhooked everything and put it away. When I attached the gauge on the fuel rail it was spraying fuel everywhere and it had been sitting for hours at that point so there was pressure there. By the time I got the gauge on it read 10 PSI. One click of the key and it shot up to 45 PSI and stayed there until I started it. Curlrup APR 11, 04:52 PM Should have 3/4 tank. Guage seems legit since I've filled up twice now. I'll get pressure readings here. Curlrup APR 11, 09:08 PM Ok. It sat for a few hours, cooled down started and ran like nothing happened. No whine, no nothing. Then added 3 gallons of gas guage went up just over quarter tank. Seems about right. The guage is working fine. So before this episode I drove it 10 miles then ran it at idle for 30 minutes while adding A/C refrigerant (A/C is boned. Leaking compressor oil everywhere). After 30 minutes. That's when the whining started. Coupled with stumbling and dying.