Auxiliary fan(s) not working
#1
Rennlist Member
Thread Starter
Auxiliary fan(s) not working
Fans are not running after engine is shut off. Where exactly are the fan(s)? What to check for? Don't know if the fan location is different on a n/a vs. a TT. Thanks
#2
Rennlist Member
Oh Scott, what a shame. I'm sorry to tell you but your car is history. I guess I can do you a favor and trade you my 96 Carrera for it. Maybe, just maybe I can get it back on the road someday.
#3
Rennlist Member
The fan is in the left/top/back area of the engine and is the same fan used for heating/AC. After shutdown, the fan is controlled by thermostats/sensors and the fan will not necessarily be running - only runs when the temperature is high enough. The fan may come on intermittently as the temperature rises to scavenge heat out of the engine compartment. After @ 20 minutes, there is a "timeout" feature that prevents the fan from operating to make sure the battery stays OK.
#4
Rennlist Member
Thread Starter
Mike - Thanks for the offer .
If I go on a drive with other cars similar to mine and we all shut our cars off, my car is the only one that the fans are not on. So the fan does not cool any particular part, it just draws heat out of the engine compartment?
If I go on a drive with other cars similar to mine and we all shut our cars off, my car is the only one that the fans are not on. So the fan does not cool any particular part, it just draws heat out of the engine compartment?
#5
Technical Guru
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Rennlist Member
Originally Posted by Bradford
If I go on a drive with other cars similar to mine and we all shut our cars off, my car is the only one that the fans are not on. So the fan does not cool any particular part, it just draws heat out of the engine compartment?
0'C (32'F) 28.8 - 36.4 kOhms
25'C (77'F) 9.0 - 11.0 kOhms
50'C(122'F) 3.1 - 4.0 kOhms
You can check the general fan operation by turning the heat to high (on the CCU) and the fan speed to #4 (max). If there is a problem with the rear fan the front blowers will not operate with the heat on.
#7
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Thread Starter
Okay, I replaced the temperature sensor and the rear blower resistor and the fan still does not go on after the car is turned off. Any other suggestions? Thanks
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#8
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So there are two electric cooling fans? This one in the rear directly on the engine and a second one that blows on the oil cooler up front?
Bradford's issue is all unrelated to the resistors up front, right?
Bradford's issue is all unrelated to the resistors up front, right?
Last edited by dcdude; 03-28-2008 at 08:36 PM.
#9
Technical Guru
Rennlist Member
Rennlist Member
Originally Posted by Bradford
Okay, I replaced the temperature sensor and the rear blower resistor and the fan still does not go on after the car is turned off. Any other suggestions?
#10
Rennlist Member
Thread Starter
Originally Posted by JasonAndreas
You're positive that the temperature in the rear ducting is above 75°C?