Intermittment whining sound

Chevy 2000 Impala -- whining sound comes on sommetimes, not all the time. Slight hard shift when it occurs. Sounds like the sound airplane flaps make when airbrakes are extended. Can drive 1000 miles nd not hear it. The, can drive 20 miles and it comes on. Dealer can't diagnose -- has heard the sound. But says just to keep following it. Any thoughts?

Chevy 2000 Impala -- whining sound comes on sommetimes, not all the time. Slight hard shift when it occurs. Sounds like the sound airplane flaps make when airbrakes are extended. Can drive 1000 miles nd not hear it. The, can drive 20 miles and it comes on. Dealer can't diagnose -- has heard the sound. But says just to keep following it. Any thoughts?

Hello--How many miles on your car? Also how long since you flushed and serviced the transmission? Does it only do it as you take off from a stop, possibly sounding like it was staying in low gear too long?

Hello--How many miles on your car? Also how long since you flushed and serviced the transmission? Does it only do it as you take off from a stop, possibly sounding like it was staying in low gear too long?

95000 mi. Had dealer check trans 4 mos ago and he said it was fine. Does not always make whine from stop. And when it occurs it does so at all RPMs. But harder to hear at higher speeds.

A friend says Cadilacs do this. He says its probably a loose bearing on one of the components connected to the serpintine belt. The sound comes from the front of the car.

FYI -- my dealer is very honest. I am in a small town in Iowa (pop 5000). He has never charged me to diagnose this probelm yet nor tried to sell me anyting (like a new trans). So I trust him. It's just intermittent -- hard to pinpoint.

95000 mi. Had dealer check trans 4 mos ago and he said it was fine. Does not always make whine from stop. And when it occurs it does so at all RPMs. But harder to hear at higher speeds.

A friend says Cadilacs do this. He says its probably a loose bearing on one of the components connected to the serpintine belt. The sound comes from the front of the car.

FYI -- my dealer is very honest. I am in a small town in Iowa (pop 5000). He has never charged me to diagnose this probelm yet nor tried to sell me anyting (like a new trans). So I trust him. It's just intermittent -- hard to pinpoint.

With 95,000 miles on it, have you had the transmission serviced (flushed , new filter and fluid)? Not sure what you meant when you say the dealer checked it.

With 95,000 miles on it, have you had the transmission serviced (flushed , new filter and fluid)? Not sure what you meant when you say the dealer checked it.

Never had trans serviced (bought car w/ 45,000 mi). I will make appt this week -- get trans serviced -- and get back to this post. Let's see if this solves problem. Stay with me on this. Thanks.

Never had trans serviced (bought car w/ 45,000 mi). I will make appt this week -- get trans serviced -- and get back to this post. Let's see if this solves problem. Stay with me on this. Thanks.

Others may not agree, but I would have the Chevy dealer do it, as opposed to an oil change place or trannie shop. May cost a little more, but the right fluid will go back in. Regards from over in NE.

Others may not agree, but I would have the Chevy dealer do it, as opposed to an oil change place or trannie shop. May cost a little more, but the right fluid will go back in. Regards from over in NE.

Yesterday, had complete transmission service at the dealer -- first ever for this car (now at 95,000). No problems. Service manager said, "We didn't even find any 'pieces' down at the bottom" -- whatever that means. Now we'll see if our intermittent whining sound -- that resembles the motors on aircraft flaps -- will come back.

Regards, NE. Sorry 'bout the Huskers in the CWS. Next year!!

the whine is from your fuel pump.

It cost us $700 to get a new fuel pump, and pressure regulator (It was under warrenty) and it quit making the sound, then it started a month later.

if you take the small vacuum line (top right of the pcv valve) the sound will quit.

the whine is from your fuel pump.

It cost us $700 to get a new fuel pump, and pressure regulator (It was under warrenty) and it quit making the sound, then it started a month later.

if you take the small vacuum line (top right of the pcv valve) the sound will quit.


What do you mean "take the small vacuum line"?

What do you mean "take the small vacuum line"?


take it off

i have a 2001 police impala , and it whins like that too, in all rpm .

but it comes and gos away , its haver annoying .. it dosent come from the pollys. it comes more from the lower right of the engine


please some one help . trans shop said its not from tranz

i have a 2001 police impala , and it whins like that too, in all rpm .

but it comes and gos away , its haver annoying .. it dosent come from the pollys. it comes more from the lower right of the engine


please some one help . trans shop said its not from tranz

do i need to say it again?

it is the fuel pump.

If you take the vacuum line for the fuel off, the whining sound will quit.

you hear the sound at the bottom right because that is where the fuel lines are, go back by the gas tank, and you will hear it worse.

Just drive it until it breaks.my 2001 has been making that sound for the last 100k i now have 144k .Just drive it and turn up the radio.It will get worst before it gets better!!

we have been driving ours with the vacuum hose off, it doesnt make the sound then, nice and quiet.

What is the vacum line supposed to do? And by dissconnecting it what if any functions have been disabled?

What is the vacum line supposed to do? And by dissconnecting it what if any functions have been disabled?

Also curious, not that I have the problem.

take it off
I was the original poster here. All I can say is the sugestion to tune up the trans worked for me. Whining sound is gone. FYI, my car is at 65,000mi. Maybe you should go to the dealer -- not the trans shop. Anyway, I live in a small town and the dealer takes good care of me.

there were no problems, ecept my dad said it took like $1 more in gas.

I had this problem for a year.
I took the vacuum line around fuel rail ( ablove PCV valve) off yesterday as victimizati0n said
and now the whinning noise went away. Thanks victimizati0n. But I don't know what to do with the both open end of the line yet. Any ideas?

I had this problem for a year.
I took the vacuum line around fuel rail ( ablove PCV valve) off yesterday as victimizati0n said
and now the whinning noise went away. Thanks victimizati0n. But I don't know what to do with the both open end of the line yet. Any ideas?


I wouldnt drive around with the vacuum hose off.

It was put there for a reason, if you know what i mean.

I can say that we do drive around with the hose off, and we have had no problems, but it might be a different situation.

I would go back to the dealer, and tell them what is going on, and show them that when you unplug the vacuum, the noise goes away, they might then be able to diagnose that it is your fuel pump that is the problem.

I wouldnt drive around with the vacuum hose off.

It was put there for a reason, if you know what i mean.

I can say that we do drive around with the hose off, and we have had no problems, but it might be a different situation.

I would go back to the dealer, and tell them what is going on, and show them that when you unplug the vacuum, the noise goes away, they might then be able to diagnose that it is your fuel pump that is the problem.

Couldn't agree more with this one. Do it! :)

What are you guys taking the vacuum line off of. the fuel pressure regulator, i tried that and it didn't change the way the motor ran...I unplug a few other sensors and it didn't affect the idle of the motor, expect a few times it started to misfire like it usually does. I took the sensor thats closest to the air box off...no change....i took the vac line of the fuel pressure regulator off..no change....and the sensor after the one closest to the airbox/air cleaner off. and no change....so many fricking sensors it's ridiculous!!!

So what vac line are you taking off?
Mike

the whine is from your fuel pump.

It cost us $700 to get a new fuel pump, and pressure regulator (It was under warrenty) and it quit making the sound, then it started a month later.

if you take the small vacuum line (top right of the pcv valve) the sound will quit.MY 05 impala just started that came whining noise 3 days ago,only does it when car goes in overdrive that i can hear anyway,the vac line your talking a is it the it the plastic line by the pcv valve that goes to the back of the engine and if you take it off don't you plug it or will you have a vac leak

What is the vacum line supposed to do? And by dissconnecting it what if any functions have been disabled?my car still whines with the vac line off so i don't know what it is,only in overdrive though