Author Topic: Cooling fan coming on at 125  (Read 2977 times)

0 Members and 2 Guests are viewing this topic.

Offline challengermike

  • Bone Stock
  • **
  • Posts: 22
  • PSI: 0
    • View Profile
Cooling fan coming on at 125
« on: May 15 2011, 11:10:25 PM »
What would cause my cooling fan to come on at 125 according to my scanmaster reading.I have a TT 5.6 chip.It was always coming on at 150 since i built the car and i thought that was normal,but other people say erics chips are set for 166.This car does have a replacement ecm from napa in it since i put it together.Im not sure if it would be an ecm,sensor or wiring problem.

Offline daveismissing

  • Two Buicks- too little money$$
  • Turbo Street Outlaw
  • *******
  • Posts: 6517
  • PSI: 3
  • Two Buicks- too little money$$
    • View Profile
Cooling fan coming on at 125
« Reply #1 on: May 15 2011, 11:34:08 PM »
Low speed or high speed?
-Drain plug by Earl Brown, custom oil pan by Rich's Auto

Offline Steve Wood

  • Turbo Street Outlaw
  • *******
  • Posts: 9940
  • PSI: 34
    • View Profile
    • http://www.vortexbuicks-etc.com/
Cooling fan coming on at 125
« Reply #2 on: May 15 2011, 11:50:38 PM »
being that it gets it's low speed command  from the chip via the ecm, the first question I would have is-the ecm coolant sensor reading properly?  Does your temperature gauge read the same as the scanmaster?

diagrams for fan wiring on my site under Troubleshootin g...
Steve Wood

http://www.vortexbuicks-etc.com

A lot of broken parts does not make you a racer; it makes you a slow learner.

Offline challengermike

  • Bone Stock
  • **
  • Posts: 22
  • PSI: 0
    • View Profile
Re: Cooling fan coming on at 125
« Reply #3 on: June 06 2011, 10:09:16 PM »
Ok so i sent the emc to eric and he plugged it into his car and it worked fine.So i got it back today and started to try to figure out what was going on.I did figure it out and it was

Offline Steve Wood

  • Turbo Street Outlaw
  • *******
  • Posts: 9940
  • PSI: 34
    • View Profile
    • http://www.vortexbuicks-etc.com/
Cooling fan coming on at 125
« Reply #4 on: June 06 2011, 10:24:35 PM »
I saw Eric's reply.  We have all done things like that.  I have done it many times so don't feel bad.  The main thing is that you got it working right.

:)
Steve Wood

http://www.vortexbuicks-etc.com

A lot of broken parts does not make you a racer; it makes you a slow learner.

 

SimplePortal 2.3.7 © 2008-2024, SimplePortal