Fans running constantly
Thread Starter
7th Gear
Joined: Apr 2019
Posts: 7
Likes: 1
Fans running constantly
Hi Guys
Working on a 987 3.2 with cooling fans running constantly. When you start the car they're off, and they cut in after 20 seconds or so and keep running. Also temp gauge not working.
Have changed the fan control module, and that made no difference. Any suggestions please!
Thanks
TROUTY
Working on a 987 3.2 with cooling fans running constantly. When you start the car they're off, and they cut in after 20 seconds or so and keep running. Also temp gauge not working.
Have changed the fan control module, and that made no difference. Any suggestions please!
Thanks
TROUTY
Three Wheelin'
Joined: Feb 2013
Posts: 1,406
Likes: 55
From: San Diego
This one: https://www.pelicanparts.com/techart...Thermostat.htm
But like the person above me posted, the sensor is more likely the culprit, unless your car is running hot, in which case it may be a bad thermostat.
But like the person above me posted, the sensor is more likely the culprit, unless your car is running hot, in which case it may be a bad thermostat.
Thread Starter
7th Gear
Joined: Apr 2019
Posts: 7
Likes: 1
Hi Guys
We've tried the engine temperature sensor and it made no difference.
The fact that the fans don't come on until 30 seconds or so after startup would suggest that it's not a faulty solenoid either. I would suggest if it were the fans would run immediately. Would you agree?
If so I'm stumped as to what to try next.
It wouldn't be the engine coolant thermostat either. If it was stuck shut it would take time for the fans to work, and if stuck open it would take even longer.
Your input is gratefully received guys.
We've tried the engine temperature sensor and it made no difference.
The fact that the fans don't come on until 30 seconds or so after startup would suggest that it's not a faulty solenoid either. I would suggest if it were the fans would run immediately. Would you agree?
If so I'm stumped as to what to try next.
It wouldn't be the engine coolant thermostat either. If it was stuck shut it would take time for the fans to work, and if stuck open it would take even longer.
Your input is gratefully received guys.
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Drifting
Joined: May 2009
Posts: 2,576
Likes: 747
From: Toronto
"It's a not a bug, it's a feature."
Does the fan run until your battery drains out?
Fan on my car turns on after the car shut off also, for cooling the hot engine bay. A turbo timer performs similar function.
Does the fan run until your battery drains out?
Fan on my car turns on after the car shut off also, for cooling the hot engine bay. A turbo timer performs similar function.
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Three Wheelin'
Joined: Jan 2008
Posts: 1,687
Likes: 86
From: NYC
Do you have a Durametric or know someone who does?
It would help to know what the ECU is seeing in terms of temp.
Even a basic OBD like the KIWI should give you some temp info
Maybe there is a problem in the wiring as opposed to the sensor.
It would help to know what the ECU is seeing in terms of temp.
Even a basic OBD like the KIWI should give you some temp info
Maybe there is a problem in the wiring as opposed to the sensor.
New Member
Joined: Feb 2022
Posts: 1
Likes: 0
I am having this exact same problem and cannot figure our how to fix it either. I would be really grateful to hear what you did in the end please!