Why does my radiator fan start at a high speed?
On a cold start, my cars radiator fan starts up but at high speed (sounds like a jet engine). it is below 30 degrees out and i have my heat and a/c off. once it starts up it never stops for the full drive. this started about 3 days ago and now my check engine light came on.
Are there any fans running at full speed?
Fans are still running at a constant full speed. The laptop is an Alienware M17X R4, and i’ve had it since December 2013. Any diagnostics or help would be super appreciated. Solved! Go to Solution. 1 person had this problem. 02-12-2015 11:27 AM RE: Fans running at full speed all of a sudden, help please!
When does an electric radiator fan come on?
Odds are your electric cooling fan [s] isn’t coming on. This fan should only run when the a/c is on or when the engine temperature has reached about 218 degrees. Once the a/c is off or the engine temp drops to about 210 degrees it shuts back off again.
What happens when air conditioner fan is running at high speed?
If it is higher, the air-conditioning control module presumes that the pressure is high and assigns the fan control module to run at 90% PWM actuation. Also check the AAC pressure at stand still / cold.
On a cold start, my cars radiator fan starts up but at high speed (sounds like a jet engine). it is below 30 degrees out and i have my heat and a/c off. once it starts up it never stops for the full drive. this started about 3 days ago and now my check engine light came on.
When does the condensor fan and radiator fan stop running?
Bingo, after a while BOTH radiator fan and condensor fan stopped running (high speed or low), and then for 30 sec of so, they will try to spin up for a split sec and stopped again and so on… It is at this moment the air becomes warm. This problem is not easily duplicateable.
Odds are your electric cooling fan [s] isn’t coming on. This fan should only run when the a/c is on or when the engine temperature has reached about 218 degrees. Once the a/c is off or the engine temp drops to about 210 degrees it shuts back off again.
Why are the fans running at full speed?
Turned the computer on after leaving it off all day (in case it was an overheating problem) and no difference. Fans are still running at a constant full speed. The laptop is an Alienware M17X R4, and i’ve had it since December 2013. Any diagnostics or help would be super appreciated. Solved! Go to Solution. 1 person had this problem.