PT Cruiser Forum  

Go Back   PT Cruiser Forum > General Forums > General PT Cruiser Discussions

PT Cruiser Forum

Heat Whistles

LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 13 Nov 2013, 07:42 pm
Fresh Cruiser
Join Date: Aug 2013
Location: Connecticut, USA
Posts: 3
Question Heat Whistles

I have a 2003. Whenever I have the heat on, there's a high-pitched whistle that drives everyone in the car crazy. I can adjust the heat/fan controllers to minimize the whistle, but it's still there. It sounds like some kind of obstruction, but I've had a new heater core put in and work done on it to look for the source of the noise, but there doesn't seem to be any reason for it. I've also noticed that when I have the fan control on high, the heat control knob slams to max - as if maybe something isn't connected. Maybe you're just not supposed to have the fan on high with the heat on, but still... Is mine the only one that does this? Also the air flow isn't as strong when it's on heat compared to vent. I imagine that may be normal, but I've never noticed a significant drop in airflow with other cars I've had. Any ideas?
Reply With Quote
  #2 (permalink)  
Old 13 Nov 2013, 07:52 pm
Obsessed Cruiser
Join Date: Sep 2001
Posts: 27,758
Default Re: Heat Whistles

Sounds like you might have an obstruction in the air flow channeling which might also be the whistling noise....and NO, it's not normal and the flow for the heat should be just as much as the cold or vent.
Reply With Quote
  #3 (permalink)  
Old 13 Nov 2013, 07:57 pm
randyincctx's Avatar
Veteran Cruiser
Join Date: Jun 2013
Location: Corpus Christi,Tx.
Posts: 3,485
Question Re: Heat Whistles

Tip: If you can post a sample(Video,WAV)and let some of us hear the sound,it might help........Whistle,Whine,Buzz,Squeal,Etc. these are all subjective sounds.(One girl's 'whistle',is a another man's 'whine'.LOL)
2003 PT Cruiser (Base-N/A) Patriot Blue Pearl Purchased @ Police Impound Auction for $1,000.
Reply With Quote
  #4 (permalink)  
Old 13 Nov 2013, 09:13 pm
soonercruiser's Avatar
Obsessed Cruiser
Join Date: Jun 2007
Location: Oklahoma City
Posts: 10,767
Cool Re: Heat Whistles

Maybe leaves of something...ESPECIALLY if you don't have a cabin air filter installed.
I just purchased a 2005, and when I took off the plastic cowls near the wipers to access the windshield wash reservoir and install a cabin air filter there; it was full of leaves. Luckily, nothing in the ducts!

2003 PT Cruiser GT Panel Van Conversion as new day driver.

Have now owned 6 PT Cruisers = Me PT Crazy!
Reply With Quote
  #5 (permalink)  
Old 14 Nov 2013, 12:28 am
Senior Cruiser
Join Date: Jan 2013
Posts: 1,266
Default Re: Heat Whistles

Cindy; it could be a vacuum leak in a hose or a vacuum motor diaphram. Or a dry fan motor bearing, which would change in pitch with the fan motor speed.
Reply With Quote

air flow, heater, whistle

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
No heat at all.....06 PT aluisi Tech & Performance Forum 4 18 Feb 2013 01:37 am
No Heat dsouder General PT Cruiser Discussions 10 03 Nov 2011 10:42 am
Over Heat ? tbcrusier Tech & Performance Forum 34 29 Jun 2011 07:08 pm
Over heat, need some help hulk2 Tech & Performance Forum 29 31 Dec 2009 06:29 pm

All times are GMT -5. The time now is 09:42 am.

Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.