I’m just looking to pick some brains and see if someone more knowledgeable than me can provide some direction.
I’ve got this high pitched tone, it’s like (beeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeep) but constant, there’s no start and stop. It’s almost like an audio whine if you have power wires too close with speaker wires. Sometimes it borders on a buzzing, but it’s always closer to the beep. It’s unchanging and independent of engine speed or load.
At first I thought it was an audio issue, but it’s most audible under the car and with all the doors and windows closed, though it’s also very noticeable inside the car. I settled on a fuel pump since it’s so loud under the car, changed the pump with a brand new oem ac delco pump. Still there... though at 14 years old and 150k it probably could use the pump anyway. I’m going to change the fuel filter today.
It happens at key on and goes for about 2-3 seconds, then stops forever until I start the car.. then it’s constant. That’s the main reason I went with fuel pump.
So now I’m trying to figure out what’s happening. I only had 1 DTC that I cleared and never came back... P1811, max adapt long shift. Can the noise be the tranny fluid pump?
I haven’t had a chance to check the fluid level, I’m planning to change the fluid and filter today since it’s been a few years.
I’ve got this high pitched tone, it’s like (beeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeep) but constant, there’s no start and stop. It’s almost like an audio whine if you have power wires too close with speaker wires. Sometimes it borders on a buzzing, but it’s always closer to the beep. It’s unchanging and independent of engine speed or load.
At first I thought it was an audio issue, but it’s most audible under the car and with all the doors and windows closed, though it’s also very noticeable inside the car. I settled on a fuel pump since it’s so loud under the car, changed the pump with a brand new oem ac delco pump. Still there... though at 14 years old and 150k it probably could use the pump anyway. I’m going to change the fuel filter today.
It happens at key on and goes for about 2-3 seconds, then stops forever until I start the car.. then it’s constant. That’s the main reason I went with fuel pump.
So now I’m trying to figure out what’s happening. I only had 1 DTC that I cleared and never came back... P1811, max adapt long shift. Can the noise be the tranny fluid pump?
I haven’t had a chance to check the fluid level, I’m planning to change the fluid and filter today since it’s been a few years.
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