Secondary Cooling Fan
Thread Starter
Racer
Joined: Mar 2007
Posts: 326
Likes: 0
From: McKinney Tx
Secondary Cooling Fan
If my secondary cooling fan motor is dead will my car shut off by chance when it goes to turn on??? Maybe a failsafe mode or something?
I ask because my car is still just plain turning off at random and Ive put a new coil, ICM, plugs, etc...
I ask because my car is still just plain turning off at random and Ive put a new coil, ICM, plugs, etc...
Burning Brakes
Joined: May 2007
Posts: 965
Likes: 13
From: turn 12 at Road America or TX
No failsafe mode. When the ECM wants to turn the fan on, an "on" signal operates the fan relay and the fan comes on. Power to the fan relay comes from a fusible link behind the battery and thence to the motor.
You have a second and unrelated electrical problem IMHO.
You have a second and unrelated electrical problem IMHO.
Thread Starter
Racer
Joined: Mar 2007
Posts: 326
Likes: 0
From: McKinney Tx
We have replaced the ICM, Coil, Plugs, and a bad Coil Wire, we have noticed that when the car temp hits 207 it shuts off and when it cools down it starts back up fine. We noticed that the secondary fan fuse was blown, and upon checking the fan. The motor was no good, so we unplugged it, and should have the new one today.
Le Mans Master
Joined: Jan 2006
Posts: 5,621
Likes: 206
From: Orlando FL
You have replaced a lot of parts in common problem areas. I suggest that you get the engine to quit and then check for fuel pressure, injector pulse and spark.
Sounds like an ignition problem but until you know for sure, it will be hard to get a good direction. Could be ECM or opti but that is a flat out guess.
Sounds like an ignition problem but until you know for sure, it will be hard to get a good direction. Could be ECM or opti but that is a flat out guess.
