Intermittment whining sound

[MCO_Death]

Originally Posted by billyo69

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.

[mtsgrad11]

Originally Posted by victimizati0n

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.

[victimizati0n]

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

[big_impala]

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?

[victimizati0n]

Originally Posted by big_impala

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.

[MCO_Death]

Originally Posted by victimizati0n

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!

[bermis519]

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

[2005chevimpala]

Originally Posted by victimizati0n

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

[2005chevimpala]

Originally Posted by billyo69

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