ok 97 camaro 3.8 liter v-6 when temp is cool outside fuel pump does not make any funny noises but when it gets hot outside it will start screaming and as you pickup speed it will quiet down at idle is very noisy but only when outside temp is above 85 degrees done replaced the fuel pump relay that helped for a short time fuel pressure is good

 

Have you replaced the fuel filter? Keep the gas above 1/4 of a tank?

 

Sounds like your fuel pump is failing. Heat is a big killer of the fuel pumps and the gas in the car is fuel pumps coolant. It could make noise like that for a few months or it could die tomorrow. You get to the point is it hard to start in the morning it’s done.

 

i keep the fuel above quarter tank all the time and i have replaced the fuel filter allready even when its making noise fuel pressure is still up to 48 lbs pressure wondering if wiring could be braking down an causing to much resistance

 

The noise is most likey bearings getting hot.

 

That sound is the prelude to failure. Be prepared for it.

 

yep it can go anytime, i had one in the truck sound like crab and it went a month then quit, the new one (cheap aftermarket) started doin it after a few months, i left it for a year before i changed it to oem pump. lol, it was still workin just got tired of listening to it.

 

ok thank you for all the info what kind of fuel pump make do you all recomend

 

got one from the gm dealer for the truck. i have a granatelli in the camaro now. workin fine so far

 

ok thanks i will look into that