High pitch whistle when warmed up.

From Tune Ups to Oil Changes, maintenance related

Moderator: toayoztan

High pitch whistle when warmed up.

Postby HWNST185 » Wed May 05, 2010 10:17 pm

I couldn't find anything related to this by searching. I have this high pitch whistle when my engine is warm and pulling full vacuum. The sound is coming from around the throttle body or intake manifold. I have replaced a bunch of the vacuum lines in that area but it still does it. Last time I smoked the car there were no leaks. I have a FMIC and no cruise control if that helps any. Thanks in advance for any input, this is getting really annoying when driving around.
Members don't see the above ad. Register now - it's free!
HWNST185
Newbie
 
Posts: 8
Joined: Wed Apr 29, 2009 5:58 am
Location: Honolulu, HI

Re: High pitch whistle when warmed up.

Postby 5thgenbliss » Wed May 05, 2010 11:50 pm

+1 on this condition. I have developed the same hi pitched whistle when warm coming from the intake manifold/TB area. this is during idle, once the rpm raises to above 1700rpm it goes away.

I haven't found the problem yet either.

anyone have an idea on this 3SGTE issue :(

I will add, other, than the annoying whistling, there doesn't seem to have any adverse performance or drive-ability effects.
Boosting with the '92 GT4 RC
5thgenbliss
Club Member
 
Posts: 354
Joined: Thu Dec 06, 2007 10:20 pm
Location: vancouver BC

Re: High pitch whistle when warmed up.

Postby Corey » Thu May 06, 2010 1:41 am

I've heard the same thing from time to time :shrug:
Image
User avatar
Corey
GTFour God
 
Posts: 4121
Images: 50
Joined: Sun Feb 11, 2007 12:12 am

1989 Toyota Celica

Re: High pitch whistle when warmed up.

Postby MWP » Thu May 06, 2010 2:01 am

Yep, i get it also.
Seems to happen for a week or so, then go away for a few weeks.

A lot of my vac lines have been changed from the factory, and has a different idle air control valve, so you guys can rule those things out.
My collection of GT4 documentation: http://gt4.mwp.id.au
Daily: Celica GT4 ST185 (~170kw/atw)
Project: Toyota RA28 '77 Celica (1UZ-FE powered)
Chairman of the SA Classic Celica Club.
MWP
Established Member
 
Posts: 1591
Joined: Mon Jun 01, 2009 11:02 am
Location: Adelaide, South Australia

Re: High pitch whistle when warmed up.

Postby 5thgenbliss » Thu May 06, 2010 3:41 am

i was thinking of replacing the Idle air control valve because i'm starting to have a bit of an idling problem that hasn't gone away either. You're probably right, its not related to the whistling.
Boosting with the '92 GT4 RC
5thgenbliss
Club Member
 
Posts: 354
Joined: Thu Dec 06, 2007 10:20 pm
Location: vancouver BC

Re: High pitch whistle when warmed up.

Postby MWP » Thu May 06, 2010 8:27 am

To me it sounded more like the noise was coming from the head... so maybe a camshaft bearing.
Either way, im going to ignore it until it becomes bad enough that i can work out where it is coming from.
My collection of GT4 documentation: http://gt4.mwp.id.au
Daily: Celica GT4 ST185 (~170kw/atw)
Project: Toyota RA28 '77 Celica (1UZ-FE powered)
Chairman of the SA Classic Celica Club.
MWP
Established Member
 
Posts: 1591
Joined: Mon Jun 01, 2009 11:02 am
Location: Adelaide, South Australia

Re: High pitch whistle when warmed up.

Postby Mafix » Thu May 06, 2010 12:32 pm

mine was a vacuum leak. just got done with that mess.
Mafix
Gold Member
 
Posts: 5877
Joined: Tue Aug 10, 2004 10:56 pm

Re: High pitch whistle when warmed up.

Postby gt4tified » Fri May 07, 2010 6:56 pm

Check your a/c idle up vsv all of you.
ST185 JDM GT-FOUR RC- "White Trash"
[url=http://imageshack.us][img]http://img231.imageshack.us/img231/8264/dynographsmallstretchedmu9.jpg[/img][/url]
gt4tified
GTFour God
 
Posts: 3151
Images: 5
Joined: Wed Mar 30, 2005 3:22 pm
Location: Trinidad, W.I.

Re: High pitch whistle when warmed up.

Postby HWNST185 » Fri May 07, 2010 11:59 pm

Hmm, just changed the A/C idle up VSV and it did it before that too. My friend suggested it might be from the TB, so I think changing the last two hoses and cleaning the TB will be my next move. Thanks for the info on the A/C.
HWNST185
Newbie
 
Posts: 8
Joined: Wed Apr 29, 2009 5:58 am
Location: Honolulu, HI

Re: High pitch whistle when warmed up.

Postby 5thgenbliss » Sat May 08, 2010 5:57 am

brand new AC idle up valve, but i'll fondle it just for good measure :twisted: Cleaned out throttle body and I have all new sili hoses. (not so say new means no trouble) I guess its just a process of elimination with these annoying things. My bet is a small vaccuum leak somewhere.
Boosting with the '92 GT4 RC
5thgenbliss
Club Member
 
Posts: 354
Joined: Thu Dec 06, 2007 10:20 pm
Location: vancouver BC

Re: High pitch whistle when warmed up.

Postby HWNST185 » Sun May 09, 2010 8:56 pm

I cleaned the TB and resealed the intercooler pipe fitting on the TB and so far so good after driving around the neighborhood for a while.
HWNST185
Newbie
 
Posts: 8
Joined: Wed Apr 29, 2009 5:58 am
Location: Honolulu, HI

Re: High pitch whistle when warmed up.

Postby Corey » Mon May 10, 2010 4:48 pm

I drove my car yesterday. And found that the whistle stops once the car is warmed up, or when the engine RPM is higher than idle.

I've had my TB off in the past and have cleaned it out with compressed air. I also have new silicone hoses everywhere. Maybe the TB metal gasket needs to be replaced?
Image
User avatar
Corey
GTFour God
 
Posts: 4121
Images: 50
Joined: Sun Feb 11, 2007 12:12 am

1989 Toyota Celica

Re: High pitch whistle when warmed up.

Postby 5thgenbliss » Mon May 10, 2010 9:09 pm

my whistling starts when the car is warm at idle. when the rpm is higher than idle it goes away.
Boosting with the '92 GT4 RC
5thgenbliss
Club Member
 
Posts: 354
Joined: Thu Dec 06, 2007 10:20 pm
Location: vancouver BC

Re: High pitch whistle when warmed up.

Postby Darkstar20999 » Mon May 10, 2010 9:55 pm

:roll: i have to join this club to lol dnt know what it is but i have the same high pitch whistle sound its weird took it to a few ppl and seems the older guys cant hear it but alot of my friends that are younger can hear it just as easy as me lol so what is it lol
Last edited by Darkstar20999 on Tue May 11, 2010 6:34 pm, edited 1 time in total.
User avatar
Darkstar20999
Club Member
 
Posts: 148
Joined: Mon Sep 22, 2008 5:17 am
Location: 510...209....cali bitch

Re: High pitch whistle when warmed up.

Postby HWNST185 » Tue May 11, 2010 6:15 pm

Whistle came back yesterday. :x :shrug:
HWNST185
Newbie
 
Posts: 8
Joined: Wed Apr 29, 2009 5:58 am
Location: Honolulu, HI

Next

Return to General Maintenance and Repair

Who is online

Users browsing this forum: No registered users and 1 guest

cron