Fuel pump whine
 

I've noticed that my fuel pump has a louder high pitched whine lately. Is this trying to tell me it's about ready to implode?

In short....yes. It sounds like it's about to crap out on you. Change it ASAP.

------------------
1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s

I've had my car for nearly a year now and my pump whines as well, but still works. Someone told me a lot of the pumps do this. I just ordered a 190lph pump so she won't be whining much longer =)

------------------
Buy your parts here

It should whine to some extent, but if it is choppy sounding and the sound fluctuates, rip that baby out and throw it in your neighbors yard!!!

------------------
1992 5.0 LX, V-1 S-Trim @8LBS, Edelbrock 6037 Heads, Cobra Intake,E-303, 1.6 Roller Rockers,65MM Holley TB, 75 MM Pro M Mass Air, 190 LPH FP w/ 24 lb injectors,MSD 6A and BTM, BBK equal length shorties, offroad h-pipe,Mac Flowpath Mufflers, Pro 5.0, 3.73's,Motorsport "C" springs,welded subframe connectors, Ponies w/ 225/50 Nittos, Dark Green w/ 93 Cobra Spoiler

Daily driver: 89 Coupe with 207K plus, BBK shorties,offroad h-pipe,2-chamber flowmasters with dumps

when i turn my key on so the fuel pump starts mine whines loud to...but works fine...iv heard that mustangs are known for whiny fuel pumps....

------------------
'91 GT,91K,T-5,air silencer removed,racing clutch(previous owner put in so dont know what kind),K&N air filter,Aiwa deck,power acoustic amp,2 12" pianeers,UPDATE: Just got my Mac long tube headers and Cat-back

Future Mods:3.73's,Pro 5.0,Shifter knob,FMS 9mm wires

They definitely do whine, but if the sound has changed or gotten louder as SGWINN indicated, that is definitely a sign it is on its way out.

All fuel injected mustangs and ford trucks have that whine (it was VERY loud in my '91) so it may not be a problem. Of course, the power steering pump soon overcame that noise...but that's a different subject.