☰
Login
Join
×
Ask a Question
Questions by Vehicle
Repair Topics
Testing / Diagnostics
Repair & Service Guides
Symptoms
Warning Lights
Trouble Codes
How It Works
Videos
Login
Become a Member
Home
Chevrolet
Uplander
Engine Cooling
Cooling Fan
Not Working
Cooling fan will not come on unless A/C turned on then only on low
2008 CHEVROLET UPLANDER
169,000 MILES • 3.9L • V6 • 2WD • AUTOMATIC
TED FINLEY
MEMBER
10 POSTS
New fans, comes as AC and radiator fans. checked relays. when ground check relay fans come on high speed. just replaced transmission new.
Apr 27, 2019 at 12:17 AM
ASEMASTER6371
✓
Experienced Mechanic
52,796 POSTS
Good afternoon,
Try this. Remove the connector for the cooling fans. Do this while the engine is running and see if the fan kicks on.
Check the fuses I circled in the diagram I attached for power as well.
Roy
Images (Click to enlarge)
Apr 27, 2019 at 2:42 AM
TED FINLEY
MEMBER
10 POSTS
Checking now. think I checked this relay, but will check again. thanks
Apr 27, 2019 at 6:52 AM
ASEMASTER6371
✓
Experienced Mechanic
52,796 POSTS
Sounds good. Keep us updated.
Roy
Apr 27, 2019 at 6:58 AM
TED FINLEY
MEMBER
10 POSTS
checked fuse, checked relay okay.
Apr 27, 2019 at 11:37 AM
ASEMASTER6371
✓
Experienced Mechanic
52,796 POSTS
Did you do what I suggested with the sensor connector?
Roy
Apr 27, 2019 at 12:04 PM
TED FINLEY
MEMBER
10 POSTS
Yes.
Apr 29, 2019 at 12:47 AM
ASEMASTER6371
✓
Experienced Mechanic
52,796 POSTS
And the result.
Roy
Apr 29, 2019 at 1:20 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Add image or video
Ask a new question
Frequently Asked Problems for This Vehicle
Engine stalls while driving
→
Engine overheating
→