A few weeks ago I upgraded my Fuel Pump to a Walbro 307, hot-wired.
I have only driven the car a few hundred miles and I now hear a high pitched whine from the fuel tank after the car has run a few minutes.
Is this common or is my pump about to let go?
Maybe defective?
Car runs fine, but for how long.......
Thanks,
Mark
Mine has done that ever since I put it in and it still pumps as strong as ever. I believe some others in my area have the same pump, and they do make a whine when you go to the rear of the car. Seems both the 307 and 340 do it.
hehe.. whine is fine. sometimes it will be louder with less gas. I will say the stock pump was pretty quiet in my gn compared to other in tank stock pumps. ........ most likely your fine dont worry and enjoy the fuel you certainly lack int the stock pump.