Fans problems

[AlleyCat]

My car is overheating out of the overfill canister. Had a lot of work done. Fan is not coming on. Even with ac. Looks connected. Where is the fuse for this? Can someone show me a picture? How much is a fan assembly if it went bad?

 

[hellno]

FAN FUSES ARE IN ENGINE COMPARTMENT FUSE BOX ON PASSENGERSIDE RIGHT BEHIND THE HEAD LIGHT

 

[jonx96]

So just a thought here. Your car was retuned is it possible the tables were set to Celsius and they put Fahrenheit numbers in?

 

[AlleyCat]

Thanks. Go to system, fans and look for?

 

[AlleyCat]

Just looked. Farenheight

 

[jonx96]

Just looked. Farenheight

Ok and the numbers make sense right? Because I could write a tune in C and then you could open it and it would convert to F

 

[AlleyCat]

Pwm linear is on. Fan fcm disabled.

 

[AlleyCat]

I will try taking a picture.

 

[AlleyCat]

 

[AlleyCat]

160’degree thermostat. Pwm desired ext set to 163

 

[AlleyCat]

Just removed the thermostat. Waiting for new one. New fan assembly coming by Monday. That a local mechanic can handle.

 

[Hunter]

No fans.....

 

[AlleyCat]

No fans

 

[Hatermkr]

Just removed the thermostat. Waiting for new one. New fan assembly coming by Monday. That a local mechanic can handle.

Fan easy to do 2 bolts lift up

 

[HWDan]

How about the fan relay(s)? I used to jumper one of them so I can keep the fans running in the staging lanes with the engine off. At least try jumping it to check if they turn on. Just a simple wire with male spade plugs on each end. Then you know if the relay is bad. At least this worked in the older LX's. I haven't looked if the relays are still the same now Maybe @Diboblo can help.

 

[Diboblo]

How about the fan relay(s)? I used to jumper one of them so I can keep the fans running in the staging lanes with the engine off. At least try jumping it to check if they turn on. Just a simple wire with male spade plugs on each end. Then you know if the relay is bad. At least this worked in the older LX's. I haven't looked if the relays are still the same now Maybe @Diboblo can help.

Great idea. Single fan, Hellcat, uses an inline dropping resistor for slow speed fan ops. For high speed ops, it's full 12v. There are 2 fuses 3 and 19, in the front power distribution block, as well as 2 relays (hs and ls).

All can be checked, in a few minutes, except for the dropping resistor.

If you have AlfaOBD, you can ping the fan and check relay ops and fan ops.

Sometimes, with those 50 amp box fuses, it's easier just to replace them.

Lastly, no harm in removing the relays and wiggling them, in the socket. Oxidation can cause havoc, depending on how humid your area is, or has been.

Yes, the jumper method is a great idea! I believe that was called the
25 cent fan mod, back in the day. Easy to test. Just keep your hands away from the fan... even with the engine/car off. It has a life of it's own.

 

[Diboblo]

Fan easy to do 2 bolts lift up

You Challenger guys have it easy. Charger drops out the bottom and all kinds of drama. Ugh.

 

[AlleyCat]

 

[AlleyCat]

Am I missing any fuses or relays?

 

[AlleyCat]

They look all there compared to pictures on the net. The 50 amp ones look like toast.