cooling fan help
Thread Starter
Advanced
Joined: Dec 2003
Posts: 66
Likes: 0
cooling fan help
I need help!! I have my first DE next week and my fan system is on the fritz. Usually the #1 low fan comes on when the temp gauge is at the 10 o'clock position. It usually stays on for a minute or so until the temp gauge is around the 8 o'clock position. What is happening now is the #2 high speed fan comes on for 3 SECONDS then shuts off for 5 SECONDS...then back on until the temp is at the 8 o'clock postion. The low speed fan still comes on with the AC on.
Do I need a new thermoswitch? The one in the radiator? Could it be something else? I need to fix this in the next 5 days !!! I need some help
Thanks in advance!!
Graham.
Do I need a new thermoswitch? The one in the radiator? Could it be something else? I need to fix this in the next 5 days !!! I need some help
Thanks in advance!!
Graham.
Rennlist Member
Joined: May 2002
Posts: 554
Likes: 1
From: Detroit, MI
My guess is....
The thermoswitch on the radiator. I am pretty sure that it controls both the low and high speed fans. The upside is that they are relatively cheap, easy to replace, and even if it does not need to be replace now it will soon enough. I do not really see any downside to starting by replacing it first.
Good luck and I hope this helps
The thermoswitch on the radiator. I am pretty sure that it controls both the low and high speed fans. The upside is that they are relatively cheap, easy to replace, and even if it does not need to be replace now it will soon enough. I do not really see any downside to starting by replacing it first.
Good luck and I hope this helps
Thread Starter
Advanced
Joined: Dec 2003
Posts: 66
Likes: 0
I fixed it!!! It was the terminals that connect to the two round fan resistors mounted on the passenger firewall. One of the four terminals was slightly corroded....apparently enough to cause the problem.
All set to go now. Thanks for your responses.
Take care,
Graham.
All set to go now. Thanks for your responses.
Take care,
Graham.
Thread Starter
Advanced
Joined: Dec 2003
Posts: 66
Likes: 0
They are under the black plastic panel that covers the blower fan...under the hood. They are mounted under the passenger wiper shaft on the fire wall. They are two puck shaped porcelen/ceramic pieces with two wires connected to each.
G-
G-
Three Wheelin'
Joined: May 2001
Posts: 1,635
Likes: 1
From: New York
Good job, guys!
I was going to reccommend a new radiator...just kidding!
Miles, thanks for all the comforting mental help while I was doing my conversion...my wife hasn't told me yet what it's going to cost!
Jason
I was going to reccommend a new radiator...just kidding!
Miles, thanks for all the comforting mental help while I was doing my conversion...my wife hasn't told me yet what it's going to cost!
Jason
Trending Topics
Rennlist Member
Joined: May 2002
Posts: 554
Likes: 1
From: Detroit, MI
Hey Jason,
I have been lurking around the list and reading all the posts on your car. From what I have read it sounds like your car came out GREAT! I am glad I could help out. But like I said before the "Wife Bill" may actually be higher than the car! Good luck with that and enjoy the car!
I have been lurking around the list and reading all the posts on your car. From what I have read it sounds like your car came out GREAT! I am glad I could help out. But like I said before the "Wife Bill" may actually be higher than the car! Good luck with that and enjoy the car!
Rennlist Stories
The Best Porsche Posts for Porsche Enthusiasts
Stunning Porsche 356A Super GT Speedster Auction Fails to Meet Reserve
Verdad Gallardo
Every Era of 911 Owner Explained in One Sentence
Verdad Gallardo
Thinking of Buying a Porsche? Do These 10 Things First
Joe Kucinski
Pixar Pals Turned Into 1-of-1 Porsches!
Michael S. Palmer
Theon Goes Full Carbon Fiber With Stunning New Build
Verdad Gallardo
Genius Porsche-Themed Gifts That'll Make Any Dad or Grad Smile
Joe Kucinski
10 Used Porsches Are Selling for Way Too Cheap
Joe Kucinski
Tuner Is Converting Porsche 911s Into Shooting Brakes
Verdad Gallardo
This Coachbuilt Creation Is A Modern Take on the Legendary Porsche 917
Verdad Gallardo
Race Car
Joined: Nov 2001
Posts: 4,089
Likes: 4
From: $F Bay Area
Yup, when your cooling fans are cycling between high and low speeds the best bet is to check your fan resistors. It means that one of the resistors is not doing its job, so the other one must work double time. This overheats the other resistor and what you hear are the fans switching between low & high speed as the resistor gets too hot and then cools down, etc.
Good fix! Have fun at the track.
Good fix! Have fun at the track.
