A Cars forum. AutoBanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » AutoBanter forum » Auto makers » Saturn
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

A/C & Radiator fan not working



 
 
Thread Tools Display Modes
  #1  
Old December 4th 04, 10:46 PM
Mike M
external usenet poster
 
Posts: n/a
Default A/C & Radiator fan not working

Recently my 1996 SC1 began to get hot in heavy traffic. Normally the
radiator fan will come on when the A/C is on or if the temp gauge reaches
1/2 way. In this case neither happened. In testing the components both the
fan and the A/C compressor work when 12v is applied directly to them. The
car has a single coolant temp sensor so the temp gauge would not work if the
coolant tem sensor was bad. No trouble codes from the computer and the fuses
and relays are all good. Any ideas would be appreciated.

mike


  #2  
Old December 5th 04, 12:24 AM
Blah blah
external usenet poster
 
Posts: n/a
Default

In article >, fairmail53
@yahoo.com says...
> Recently my 1996 SC1 began to get hot in heavy traffic. Normally the
> radiator fan will come on when the A/C is on or if the temp gauge reaches
> 1/2 way. In this case neither happened. In testing the components both the
> fan and the A/C compressor work when 12v is applied directly to them. The
> car has a single coolant temp sensor so the temp gauge would not work if the
> coolant tem sensor was bad. No trouble codes from the computer and the fuses
> and relays are all good. Any ideas would be appreciated.
>
> mike


Relay(s) maybe.
  #3  
Old December 5th 04, 08:33 PM
Mike M
external usenet poster
 
Posts: n/a
Default

Tried the relays.so all work OK.

"Blah blah" > wrote in message
...
> In article >, fairmail53
> @yahoo.com says...
>> Recently my 1996 SC1 began to get hot in heavy traffic. Normally the
>> radiator fan will come on when the A/C is on or if the temp gauge reaches
>> 1/2 way. In this case neither happened. In testing the components both
>> the
>> fan and the A/C compressor work when 12v is applied directly to them. The
>> car has a single coolant temp sensor so the temp gauge would not work if
>> the
>> coolant tem sensor was bad. No trouble codes from the computer and the
>> fuses
>> and relays are all good. Any ideas would be appreciated.
>>
>> mike

>
> Relay(s) maybe.



  #4  
Old December 6th 04, 07:34 AM
Blah blah
external usenet poster
 
Posts: n/a
Default

Oh oops I missed that in your post. Might have to start tracing your
power source up the line. Just have to make sure its commanded on. ECM
maybe... <i'm half asleep here...>

In article >, fairmail53
@yahoo.com says...
> Tried the relays.so all work OK.
>
> "Blah blah" > wrote in message
> ...
> > In article >, fairmail53
> > @yahoo.com says...
> >> Recently my 1996 SC1 began to get hot in heavy traffic. Normally the
> >> radiator fan will come on when the A/C is on or if the temp gauge reaches
> >> 1/2 way. In this case neither happened. In testing the components both
> >> the
> >> fan and the A/C compressor work when 12v is applied directly to them. The
> >> car has a single coolant temp sensor so the temp gauge would not work if
> >> the
> >> coolant tem sensor was bad. No trouble codes from the computer and the
> >> fuses
> >> and relays are all good. Any ideas would be appreciated.
> >>
> >> mike

> >
> > Relay(s) maybe.

>
>
>

  #5  
Old December 5th 04, 01:28 AM
94SC2
external usenet poster
 
Posts: n/a
Default

see topic "cooling fan" Nov 27

  #6  
Old December 5th 04, 08:33 PM
Mike M
external usenet poster
 
Posts: n/a
Default

Yes, I read that first. Thanks

"94SC2" > wrote in message
lkaboutautos.com...
> see topic "cooling fan" Nov 27
>



  #7  
Old December 7th 04, 03:32 AM
jdubsl2
external usenet poster
 
Posts: n/a
Default

"The car has a single coolant temp sensor so the temp gauge would not
work if the coolant tem sensor was bad."

This is not true. If you have never changed the CTS, change it to see
if your problem is solved. The original design CTS was made of resin,
which cracked due to the high heat of the coolant. The new, replacement
OE part is made of brass for durability. If the sensor is cracked, it
will not read the correct coolant temp (in your case, lower than it
really is) and the PCM will not command the fan on.
A bad CTS doesn't always set a DTC, either.

  #8  
Old December 7th 04, 03:43 AM
jdubsl2
external usenet poster
 
Posts: n/a
Default

The temperature guage will still operate on the IP cluster if the
sensor is bad.

You're headed in the right direction, though. The ECTS (engine
coolant temperature sensor). The original part was made of resin, which
cracked due to the high temperature of the coolant passing over it. The
new, redesigned OE part is made of brass for durability and to correct
this issue. If you replace it (I would, if you never have... $10 in
parts) be sure the contacts on the connector are clean.

Hopefully this won't be a double-post. The first time I tried, it
didn't show? New to this group. :-)

 




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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Help! Front windshield wipers stopped working! GA Jeep 12 December 12th 04 04:35 PM


All times are GMT +1. The time now is 05:02 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 AutoBanter.
The comments are property of their posters.