Nissan 370Z Forum  

Radiator fans not spinning at all

After an oil change I realized my coolant began to overheat. When the car is just warming up it’s fine but as soon as my oil temps begin to rise

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain


Reply
 
LinkBack Thread Tools Display Modes
Old 08-05-2022, 08:35 PM   #1 (permalink)
Base Member
 
Join Date: Jul 2020
Location: Los Angeles
Posts: 25
Drives: 2010 Nissan 370z
Rep Power: 5
brandad_1 is on a distinguished road
Default Radiator fans not spinning at all

After an oil change I realized my coolant began to overheat. When the car is just warming up it’s fine but as soon as my oil temps begin to rise the coolant temperature does too. I just changed my oil and flushed and filled my coolant (both at appropriate levels) and my car was still overheating. Then I ran the ipdm test and realized my fans don’t spin at all. I tested the fan motors and both still work. I tested the relay and it still has continuity with no resistance. The rad fan fuse isn’t blown. I swapped the cooling fan module and it still didn’t fix anything. I’m stumped and I don’t know what else could be the problem. The only thing I could think of is a bad harness but there still seems to be continuity, at least to the black wire that connected to the module. Is there anything else that can be bad that I should check?
brandad_1 is offline   Reply With Quote
Old 08-08-2022, 02:59 PM   #2 (permalink)
Base Member
 
Join Date: Apr 2021
Location: Florida
Posts: 217
Drives: G37S
Rep Power: 26848
THE BULL has a reputation beyond reputeTHE BULL has a reputation beyond reputeTHE BULL has a reputation beyond reputeTHE BULL has a reputation beyond reputeTHE BULL has a reputation beyond reputeTHE BULL has a reputation beyond reputeTHE BULL has a reputation beyond reputeTHE BULL has a reputation beyond reputeTHE BULL has a reputation beyond reputeTHE BULL has a reputation beyond reputeTHE BULL has a reputation beyond repute
Default

Quote:
Originally Posted by brandad_1 View Post
After an oil change I realized my coolant began to overheat. When the car is just warming up it’s fine but as soon as my oil temps begin to rise the coolant temperature does too. I just changed my oil and flushed and filled my coolant (both at appropriate levels) and my car was still overheating. Then I ran the ipdm test and realized my fans don’t spin at all. I tested the fan motors and both still work. I tested the relay and it still has continuity with no resistance. The rad fan fuse isn’t blown. I swapped the cooling fan module and it still didn’t fix anything. I’m stumped and I don’t know what else could be the problem. The only thing I could think of is a bad harness but there still seems to be continuity, at least to the black wire that connected to the module. Is there anything else that can be bad that I should check?
Usually one way to tell is if you remove the middle wire from the fan module with the key on fans have to turn on.

On another note I noticed when I did my gallery gaskets that my fans wouldnt turn on. I had evacuated the A/C system and noticed that I was overheating.
I put A/C back on and fan operation returned to normal. I suspect the A/C high pressure switch interacts with the cooling process of the car.
THE BULL is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Radiator fans Not working properly Daniel370 Engine & Drivetrain 1 08-05-2022 04:34 AM
upgrade stock fans while doing the radiator? bimbimbop Forced Induction 12 08-23-2018 07:05 AM
[WTB] WTB: Headlights, Rear Bumper, Rad Support, Radiator, A/C Cond, Tail Lights, Fans, Fair370Z Parts for sale (Private Classifieds) 6 06-22-2011 08:44 AM
Need some help...radiator fans spearfish25 Nissan 370Z General Discussions 8 01-18-2011 10:09 PM
For all guitar fans and/or Kyle Busch fans.... 2theextreme The Lounge (Off Topic) 6 06-11-2009 03:41 PM


All times are GMT -5. The time now is 03:18 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2