Go back to home

Cooling fans.

Author
Post
Essentials Only Full Version
Bjbrad
MR2 Enthusiast
  • Total Posts : 5
  • Scores: 0
  • Reward points: 1
  • Joined: 2016/02/23 10:57:35
  • Status: offline
2016/02/23 11:01:02 (permalink)
0

Cooling fans.

Hi, just after some help working out why my radiator cooling fans are not coming on when I disconnect engine bay temp sensor. The interviewer fan comes on but not rad fans. They do work because they come on with turbo timer. I'm guessing it has something to do with turbo timer. Any ideas?
#1


5 Replies Related Threads
    Guest
    MR2 Enthusiast
    • Total Posts : 36
    • Scores: 0
    • Reward points: 1547
    • Joined: 2011/04/07 00:00:00
    • Status: online
    Re: Cooling fans. 2016/02/23 11:22:18 (permalink)
    0
    Mine only come on with a/c on or if the cars about to over heat (happened when my thermostats died). Engine bay temp sensor is disconnected. Be interested to know more about the wiring / triggers of the radiator fans.
    #2
    sprigs
    MR2 Aficionado
    • Total Posts : 139
    • Scores: 6
    • Reward points: 3096
    • Joined: 2011/04/07 19:51:15
    • Location: melb vic Australia
    • Status: offline
    Re: Cooling fans. 2016/02/23 12:00:04 (permalink)
    0
    Engine bay temp sensor when disconnected will only trip the intercooler fan.
     
    I believe the AC amp controls the rad fans, if there was a fault in the circuit the rad fans would run constantly it was purposely designed that way. My AC amp was fried a while back and my rad fans would always run, got it replaced now it only runs when reaching certain temps (usually when sitting in traffic) or when the air con is on.
    #3

    Bjbrad
    MR2 Enthusiast
    • Total Posts : 5
    • Scores: 0
    • Reward points: 1
    • Joined: 2016/02/23 10:57:35
    • Status: offline
    Re: Cooling fans. 2016/02/23 14:37:08 (permalink)
    0
    Thanks, I have read that they should come on. This is what I'm wanting, to have them running all the time and see if it makes a difference to after stop boiling.

    I have a 1990 with a gen 3 3stge.
    #4
    sprigs
    MR2 Aficionado
    • Total Posts : 139
    • Scores: 6
    • Reward points: 3096
    • Joined: 2011/04/07 19:51:15
    • Location: melb vic Australia
    • Status: offline
    Re: Cooling fans. 2016/02/23 15:09:17 (permalink)
    0
    You can try disconnecting your radiator temp sensor that will trip the fans to run.
    #5
    dasic1
    Moderator
    • Total Posts : 1323
    • Scores: 83
    • Reward points: 5910
    • Joined: 2011/04/07 19:51:15
    • Location: melbourne vic Australia
    • Status: offline
    Re: Cooling fans. 2016/02/23 17:09:44 (permalink)
    0
    Yeah disconnect the radiator temp sensor for the thermo fans to come on
    Engine bay temp sensor for the IC fan to come on

    https://www.facebook.com/MuscleMotorTrimmers
     
    SW20 bits for sale
    http://www.mr2australia.c./mr2play/tm.aspx?m=68510
    #6

    Jump to:
    © 2025 APG vNext Trial Version 5.5