Jump to content

Radiator fan low speed not working?


Jurnietow

Recommended Posts

I noticed that my radiator fan behavior seems a little odd.  It took some front end damage from a deer strike last fall, which was repaired at the dealer, and now that it has started to warm up I noticed the radiator fan does not turn on when the AC is switched on.  I don't know if it's supposed to as I never paid attention to it before.

It only operates at high speed when the engine temperature hits 230F and shuts off when it reaches about 215F.  It's my understanding that the fan should always come on when the AC is engaged, and the low speed should come on at a lower engine temperature than the high speed. 

 

I have already replaced the thermostat as I got a P0128 code.  It appears to be working normally now.  I also replaced the Engine Coolant Temperature sensor while I was at it.

 

This car does not appear to have a radiator fan relay, but I did notice the radiator fan resistor is in a location where it might have been impacted by the radiator when I hit the deer.  It is possible that this was overlooked when the damage was repaired. Can a faulty radiator fan resistor cause this behavior?  Can anyone with knowledge or a service manual confirm that this behavior is abnormal?

Thanks.


 

Link to comment
Share on other sites

It could definitely cause the behavior. I would go have it looked at, if it is only running the high speed fan that means that it is becoming the sole speed that the engine is relying on to cool everything down. In most cases the low speed fan would engage first, and then in cases of excessive temperatures the high speed would turn on. When it was repaired the work and parts should have come with a warranty so I would bring it up with the repair shop. 

Link to comment
Share on other sites

Thanks for the reply.  Any chance I could get you to see how you fan behaves with the ac engaged while parked and report back to me?

 

I did find some low and high radiator fan relays in the fuse block.  They are the same so I swapped them.  The behavior is still the same, so I can eliminate a faulty relay.

I also pulled the resistor and inspected it.  There are possibly some small cracks in the green ceramic insulator, but they are slight enough that I think they could have been there since new.

Link to comment
Share on other sites

  • 11 months later...
  • Official Dodge Support
On 5/1/2018 at 8:47 AM, Dodgejourneyluvr said:

I'm having the same issue where the fan is only kicking on at 230.  Was there a resolution here?

 

Hello Dodgejourneyluvr,

 

We apologize for the inconvenience you're experiencing with your fan. I understand your desire to get advice from the forum members but if you decide to get this looked at by the dealer, let us know. We'd be glad to get this escalated to a Case Specialist for further handling.

 

Jasmine

Dodge Social Care Specialist

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...