electric fan temp sensor - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Mustang Forum This forum is for the discussion of all Ford Mustang models, including the Ford Mustang, Ford Mustang Convertible and Ford Mustang Coupe and all older/classic models and submodels.

LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 03-30-03, 02:01 PM Thread Starter
Registered User
Join Date: Mar 2003
Posts: 2
electric fan temp sensor

Somebody help! I have an '89 Mustang LX convertible with a 2.3L, automatic. While I would love to have a 5.0L, this will do for now.

My problem is that while cruising on warm or hot days the engine will start to warm up, as normal. But the electric fan does not kick on when it is supposed to. If I notice that the temperature gauge is getting too high, I kick on the A/C for a few seconds (which is apparently enough time to kick on the electric fan) and the engine cools down as it should. But, the fan will not run by itself when the temp gets high, only when I kick on the A/C.

While I love driving around with the top down, I don't want to always worry about the car overheating. I have taken it to a couple of "mechanics", but they just scratch their heads.

Help please!


jimbo777 is offline  
Sponsored Links
post #2 of 3 (permalink) Old 03-30-03, 08:26 PM
Registered User
big1's Avatar
Join Date: Mar 2003
Location: Valley Station , Kentucky
Posts: 484
Apparently the mechanic's aren't doing there job's. This little engine require's a 50/50 mix of coolant year round is this the case? Has the thermostate function been checked? You say that the fan does kick on when you turn on the a/c so you know that the fan does work. The fan sensor your looking for is located in the head. There are three of them. 1 for the tempature gauge or light. 2 for computer use. 3 fan sensor. The one for the computer has multiple wire's, disreguard this one. The easiest way to locate the one you need is to turn on the key and while someone is watching the the gauge or light pull the wire from one of the sensor's and ground it. If the light come's on or the gauge peg's out on high replace the wire, this let's you know that it's the wire to the gauge or light, and not the one you need. The other single wire sensor is the one that supply's the ground to the fan. If during the first test the fan came on this is the wire to the fan sensor.

When in doubt :DON'T
Valley Station, Kentucky
Dream EXPression Racing
big1 is offline  
post #3 of 3 (permalink) Old 03-31-03, 09:32 AM Thread Starter
Registered User
Join Date: Mar 2003
Posts: 2
Thanks for the input! You're right, the mechanics have not been a great source of confidence!

Although I'm traveling this week, I'll try your response this weekend.

Thanks again,
jimbo777 is offline  
Sponsored Links

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Cars and PAG Vehicles > Ford Mustang Forum

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Thread Thread Starter Forum Replies Last Post
coolant temp sensor x1229x General PAG discussions 2 03-01-06 03:13 PM
temp sensor staying on Twiztid Interior | Electrical | ECU 5 10-05-03 05:07 AM
Calif. company bids for unplugged Ford electric car unit Stacy94PGT Ford Worldwide News 0 10-31-02 06:28 PM
Cooling Temp Sensor 1stgenprober Ford Probe Forum | Mazda MX6 Forum 2 01-03-02 02:58 AM
Understanding Engine Management - Part 1 Dan [Sac] V6 and Hot4 Tech 0 12-11-01 01:08 PM

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

For the best viewing experience please update your browser to Google Chrome