PT Cruiser Forum  
Advertisements
       

Go Back   PT Cruiser Forum > General Forums > Tech & Performance Forum

PT Cruiser Forum

Advertisements
PT cruiser overheating fan wont kick on

 
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 13 Apr 2009, 04:56 pm
Fresh Cruiser
 
Join Date: Apr 2009
Posts: 2
Default PT cruiser overheating fan wont kick on

Hello everyone, I have had problems with my 2001 PT cruiser overheating when at a stop sign or at idle. I know that this is caused by the fan not turning on. I have replaced both the relay's, new temp sensor, checked to make sure that the fan is good and still no fan. I was told that there are two two temp sensors in a PT. Can anyone help? Thanks TJ
Reply With Quote
  #2 (permalink)  
Old 13 Apr 2009, 07:09 pm
Obsessed Cruiser
 
Join Date: Sep 2001
Posts: 27,743
Default Re: PT cruiser overheating fan wont kick on

There's only one Engine Coolant Sensor that I know of and what I see in the manual and that's right by the thermostat.




It sounds like you've checked everything the book tells you to check except the PCM (Powertrain Control Module) which ties everything together and needs professional services.
Reply With Quote
  #3 (permalink)  
Old 13 Apr 2009, 07:18 pm
quicksilverdon's Avatar
Obsessed Cruiser
 
Join Date: Nov 2003
Location: Felton, Delaware
Posts: 20,501
Default Re: PT cruiser overheating fan wont kick on

It's probably the fan.
__________________
"Anti-intellectualism has been a constant thread winding its way through our political and cultural life,
nurtured by the false notion that democracy means that 'my ignorance is just as good as your knowledge."
Isaac Asimov"

'05 Limited Turbo Lite, (Silver, of course)4-wheel ABS, Sunroof, Spoiler. Mods: E&G Classic grill, K&N FIPK, BTG duals, rear lowered 1.5", LED washer lights, $20 catch can, Aoogah horn, Weatherflectors, Sunroof Deflector, Fuzzy Dice, rear logo flames, rear pinstripe graphic, Gen3 Taillights, rear sway bar, hood struts, Strut bar.
Traded in '02 Silver Touring Edition w/87,000 miles
Reply With Quote
  #4 (permalink)  
Old 13 Apr 2009, 07:43 pm
Obsessed Cruiser
 
Join Date: Sep 2001
Posts: 27,743
Default Re: PT cruiser overheating fan wont kick on

I would have said the same thing Don except he said "he checked to make sure the fan was good".
Reply With Quote
  #5 (permalink)  
Old 14 Apr 2009, 12:26 pm
Fresh Cruiser
 
Join Date: Apr 2009
Posts: 6
Default Re: PT cruiser overheating fan wont kick on

Possible PCM issue?
Reply With Quote
  #6 (permalink)  
Old 14 Apr 2009, 12:47 pm
Obsessed Cruiser
 
Join Date: Sep 2001
Posts: 27,743
Default Re: PT cruiser overheating fan wont kick on

Quote:
Originally Posted by dorman68 View Post
Possible PCM issue?

I think I already suggest that, but thanks for backing it up.

Last edited by CREWZIN; 14 Apr 2009 at 12:51 pm.
Reply With Quote
  #7 (permalink)  
Old 25 Oct 2010, 10:08 pm
cairo16's Avatar
Fresh Cruiser
 
Join Date: Oct 2010
Location: Rhode Island
Posts: 11
Default Re: PT cruiser overheating fan wont kick on

Im trying to get in touch with Crewzin. This is my problem i have a 2006 non turbo touring edition pt cruiser. It runs well but idles roughly. the alternator belt keeps coming loose. happened twice in four months. the ac worked fine up until recently, but now when i put it on while idling, the car shudders then idles normally then shudders again the fan does run but it doesnt seem to turn on when it should, and it seems louder than it was when i bought the car. not sure what to do or what to replace please help
Reply With Quote
  #8 (permalink)  
Old 26 Oct 2010, 04:25 am
Obsessed Cruiser
 
Join Date: Sep 2001
Posts: 27,743
Default Re: PT cruiser overheating fan wont kick on

Please don't pick on me. I'm not a mechanic and don't profess to be one. I pass on information that I've seen on the forums from other owners problems and Google search will answer just about anything.

As far as your problems, when was the last time you changed plugs and wires? That's the biggest cause for ruff idle unless your timing is off.

There's only one way for the alternator belt to be tightened and that's the adjustment bolts on the alternator itself. If it keeps loosening up, either your not tightening up the adjusting bolts enough or one of those bolts are stripped.

The engine shudders and idles normal then shudders again then goes normal is happening when the compressor cycles ON and puts a strain on the engine. The engine computer is supposed to raise the idle and take the strain off. You need to have it diagnosed with someone with a scanner to see if the computer is doing that and if the fan is coming on when it's supposed to to keep things cool.
Reply With Quote
  #9 (permalink)  
Old 26 Oct 2010, 06:19 am
cairo16's Avatar
Fresh Cruiser
 
Join Date: Oct 2010
Location: Rhode Island
Posts: 11
Default Re: PT cruiser overheating fan wont kick on

Thank you for such a quick response. The plugs and wires were changed about three months ago. I shouldnt say it has always had a rough idle it seems as though this is a more recent thing. The fan was very quiet when it was running then about two months ago suddenly when the car was idling and the ac was on the fan became very loud and its stayed that way. the fan only seems to come on when you turn the ac on other than that it stays dormant, does that seem normal? Again thank you for everything.
Reply With Quote
  #10 (permalink)  
Old 26 Oct 2010, 07:23 am
Obsessed Cruiser
 
Join Date: Sep 2001
Posts: 27,743
Default Re: PT cruiser overheating fan wont kick on

The fan should be loud on the high speed mode. It's pushing a lot of air but if it's always loud, then it sounds like the low speed part of the fan has burnt out. The fan motor has a tendency to burn out some of the brushes. Again, someone with a scanner can make test and make sure both speeds of the fan are working which would test the fan motor and both fan relays and also test the computer to see if it's raising the idle speed when it needs to like when the compressor comes on or your using the poser steering in tight turns. Yes, even then the power steering unit takes power from the engine so the idle speed is raised by the computer. It all needs to be scanned.
Reply With Quote
Reply


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
2004 Chrysler PT Dream Cruiser Series 3 skylight PT Cruiser News and Rumors 10 18 Jun 2009 08:57 am
Exterior Mod List slayerdarkcross Exterior Accessories Forum 8 22 Jul 2008 03:54 pm
2006 PT Street Cruiser Route 66 Edition skylight PT Cruiser News and Rumors 35 17 Nov 2007 02:39 pm
2006 PT Cruiser Pics and New Specs skylight PT Cruiser News and Rumors 14 13 Nov 2005 08:46 pm
New 2005 Convertible PT Dream Cruiser skylight PT Cruiser News and Rumors 4 11 Jan 2005 06:12 pm


All times are GMT -5. The time now is 09:43 am.




Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
vB.Sponsors