fuel pump

[0b1]

hi guys,

i'm a new member and a bmw fan as this is mah fourth bmw (2001 x5 3.0i black sapphire metalic). i had an issue with my final stage resistor and thx to you guys managed to do it myself. nuff thanks!

now i got an issue with my fuel pump i think, there's this weird whining sound coming from the back and now its so loud i can hear it in the cabin. when outside its loudest at the exhaust area of the car.

also when i start the car atimes there's dis poor combustion thing like the plugs are bad but i just changed the plugs and its still there, i have to keep the rev needle b/w 1 and 2 rpm for like like 3 minutes before she starts acting normally

can anyone verify if its the fuel pump cos the car is functioning properly otherwise and if it is is there a DIY for replacing it

Thx guys!