Volvo AWD 850 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 10/2006 850 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

Cooling Fan Replaced but issues 850 1996

posted by  sherm on  Tue Sep 3 17:51 CST 2013
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Oct 6 20:34 CST 2014
[RELATED]

Just replaced cooling fan and relay in 96 850T. All working well for a few weeks until I noticed that fan was cutting out for no apparent reason taking the A/C with it in 99d heat in DC area. Poking around I found that the long black cylindrical part [looks like a lg black crayon with gr/red wires] that is inline on the fan's wiring harness is getting so hot that I burned my finger touching it. It is probably a capacitor, but I am just guessing. Any electricians out there? Anyone have any thoughts on why the heat? Is this the culprit? Seems like after it cools down, the fan is fine. Yes, have checked new relay, she's OK.
--
The Family Fleet '90 745 16v; '90 745 GLE; 96 855T; 99 XC, collectively approaching 900,000mi and going strong.








  •   REPLY TO THIS MESSAGE    EDIT   PRINT   SAVE 

    posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

    The schematic shows an item C/EA with one black wire from the fan and one heavy
    black directly to a ground connection.
    It is a single wire connector.

    If it's getting hot then surely whats wrong is the connector maybe has bad crimp connection/s, that got loose, corroded with age and need TLC.

    Get it apart and you should find the problem.



    Mark this post as an answer to my question<- Use this feature to mark quality replies to your post.





    •   REPLY TO THIS MESSAGE    EDIT   PRINT   SAVE 

      posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

      Components called out as "C"/xx are simple connectors, in this case the wire diagram calls it "Connector, 1-pin, engine cooling fan".

      It's probably corroded inside causing high resistance / high temp. As B.B. says, it should open up.



      Mark this post as an answer to my question<- Use this feature to mark quality replies to your post.





      •   REPLY TO THIS MESSAGE    EDIT   PRINT   SAVE 

        posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

        The helpful tech support at VDO Continental advised that the black thing is a resister and can get up to 160F normal in normal ops. So that's no longer a concern. Thanks for everyone's opins, but all connx are good clean and well dosed with CRC. All roads seem to indicate that I have a bad new KAE relay from fcp. This is the second one in a couple of months. I've got one in the proper nordic blue box coming in from Tasca. Let's see how this one performs.

        thanks all.
        --
        The Family Fleet '90 745 16v; '90 745 GLE; 96 855T; 99 XC, collectively approaching 900,000mi and going strong.



        Mark this post as an answer to my question<- Use this feature to mark quality replies to your post.





  •   REPLY TO THIS MESSAGE    EDIT   PRINT   SAVE 

    posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

    Is your alternator putting out more than 14V??? Unfortunately, for you my glove box is back in so I cannot look at my car. A black crayon? Whatever it is, it should never be hot! Can you pull it apart? There is no resistor in that line.

    There is a capacitor/resistor farther to the left of the blower, mounted on the air box with a single T25 screw. That gets hot but the large heat sink is in the airflow to keep it cool.


    Mark this post as an answer to my question<- Use this feature to mark quality replies to your post.





    •   REPLY TO THIS MESSAGE    EDIT   PRINT   SAVE 

      posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

      apologies Klaus- I meant the rad cooling fan, not cabin air.
      --
      The Family Fleet '90 745 16v; '90 745 GLE; 96 855T; 99 XC, collectively approaching 900,000mi and going strong.



      Mark this post as an answer to my question<- Use this feature to mark quality replies to your post.





      •   REPLY TO THIS MESSAGE    EDIT   PRINT   SAVE 

        posted by  someone claiming to be on  Wed Dec 31 18:00 CST 1969 [RELATED]

        You can guess where my head has been for the past few weeks.

        I just looked at my cooling fan on my 96 NA. It has a black rectangular thing about 4 inches long, but just 1 black wire going in and one black wire going out. The wires come from one bundle and go back into another, heavy gauge.

        The only red and green wires go from the relay to the fan motor.


        Mark this post as an answer to my question<- Use this feature to mark quality replies to your post.




<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.