Pennock's Fiero Forum
  Technical Discussion & Questions
  fan on when a/c on only.

Post New Topic  Post A Reply
Email This Page to Someone! | Printable Version


next newest topic | next oldest topic
fan on when a/c on only. by AL87
Started on: 09-04-2014 01:18 AM
Replies: 4 (108 views)
Last post by: sardonyx247 on 09-08-2014 09:43 PM
AL87
Member
Posts: 2578
From: Bradenton, Florida, United States
Registered: Mar 2010


Feedback score: (5)
Leave feedback

Rate this member

Report this Post09-04-2014 01:18 AM Click Here to See the Profile for AL87Click Here to Email AL87Send a Private Message to AL87Edit/Delete MessageReply w/QuoteDirect Link to This Post
So, just recently replaced my radiator, everything worked properly when tested after.

just the other day the temp went wayyy up and I did some simple checking around.
I haven't played with the wiring because when I turn the a/c on, the fan also turns on.

I can only figure that the fan switch connection is interrupted somehow
since the a/c activates the fan and everything cools fine after. suggestions?
IP: Logged
PFF
System Bot
masospaghetti
Member
Posts: 2477
From: Charlotte, NC USA
Registered: Dec 2009


Feedback score:    (10)
Leave feedback

Rate this member

Report this Post09-04-2014 08:45 AM Click Here to See the Profile for masospaghettiClick Here to Email masospaghettiSend a Private Message to masospaghettiEdit/Delete MessageReply w/QuoteDirect Link to This Post
Probably your fan temperature switch is bad. You can jumper the two connections and see if the fan comes on.

If you replace it get the 210 degree version, it doesn't let the engine get so hot before it turns the fan on.
IP: Logged
2.5
Member
Posts: 40914
From: Southern MN
Registered: May 2007


Feedback score: (1)
Leave feedback





Total ratings: 178
Rate this member

Report this Post09-04-2014 11:09 AM Click Here to See the Profile for 2.5Send a Private Message to 2.5Edit/Delete MessageReply w/QuoteDirect Link to This Post
In stock form the fan turns on at 235F. Thats not to say every dash temp guage is exactly accurate either. How hot is way up?
IP: Logged
AL87
Member
Posts: 2578
From: Bradenton, Florida, United States
Registered: Mar 2010


Feedback score: (5)
Leave feedback

Rate this member

Report this Post09-04-2014 02:19 PM Click Here to See the Profile for AL87Click Here to Email AL87Send a Private Message to AL87Edit/Delete MessageReply w/QuoteDirect Link to This Post
I have the 210 switch from Rodney.

way up means... 240+ upto 260.

I'll try to see what I can do as far as jumping the connector to test.
IP: Logged
sardonyx247
Member
Posts: 5024
From: Nevada, USA
Registered: Jun 2003


Feedback score:    (88)
Leave feedback





Total ratings: 218
Rate this member

Report this Post09-08-2014 09:43 PM Click Here to See the Profile for sardonyx247Click Here to visit sardonyx247's HomePageClick Here to Email sardonyx247Send a Private Message to sardonyx247Edit/Delete MessageReply w/QuoteDirect Link to This Post
easy test, just ground the green/white wire at the temp switch. The fan should come on with the key at that point, if it does bad temp switch, if it doesn't bad wireing.
IP: Logged

next newest topic | next oldest topic

All times are ET (US)

Post New Topic  Post A Reply
Hop to:

Contact Us | Back To Main Page

Advertizing on PFF | Fiero Parts Vendors
PFF Merchandise | Fiero Gallery | Ogre's Cave
Real-Time Chat | Fiero Related Auctions on eBay



Copyright (c) 1999, C. Pennock