Hi Gus,

I am waiting on two replacement fans. These are replacements to the fans already purchased from 707 Auto Parts in California. They were shipped last Monday & should be here any day. Once these fans come in, I will test them for resistance and also run them outside of the car using an external & fused spare car battery. At that time, I will also very closely inspect the the connections to the FCM and also to the two fans. If all of this checks out, I will put everything back together, replace the #14 fuse, and hope for the best!

I will post here once I know the results.

Thanks,

Tom

 

UPDATE

I received the fans today from 707 Auto Parts. I tested both for resistance and running on 12 volts before installing them and both tested good.

It took me about 45 minutes to pull the fan shroud, remove the old fans, install the two "new" fans & put the shroud back into the car. Before connecting them, I closely checked all connectors (per Gus' advice) and found no obvious issues, This was a pretty easy job once I removed the passenger side radiator hose (I think this might actually be referred to as the "lower" hose?)

I then re-installed the new fan control module (again), filled the antifreeze, replaced the previously blown 30 amp fan fuse and started the engine. Turned the AC on and withiin a minute, both fans came to life! Turned the AC off, took a nice long ride with plenty of stop & go and the temperature never rose above normal. Once I got home, I re-checked the two 30 amp fan fuses - they were both still good, and watched for another 20 minutes as the car idled in 90 degree heat with the fans cycling on & off with not a hint of coolant temperature rise above normal!

At this point, I'm think my problem is solved! I could not have done it without all of the help, guidance & electrical testing lessons I received from you guys!

Thanks again!

Tom

 

Well done Tom and thanks for the update.

 

Tom,
good stuff.

Two separate problems in the same area is pretty unlucky & can really cause some head scratching

You should now 'be cool'...

Mike

 

For the record and future reference, there are 3 fuses for this system. The three relays put the fans in series for low speed and in parallel for fast . You need two single pole relays and a change over to do this. The final solution indicates the auto electricians basic guide ...go for the simple things first KISS..
If you had substituted the blown fuse for a 60w headlamp bulb it would have glowed when the short was present and gone out when you disconnected the shorted motor. Standard auto electricians kit. Only found this today so too late to help.

I will do a write up on locating shorts using the correct equipment ASAP.