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Dan
Dan, ASE Certified Technician
Category: Dodge
Satisfied Customers: 1368
Experience:  Dealer Auto Technician
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2010 dodge journey 3.5L Coolant fan does not come on

Customer Question

2010 dodge journey 3.5L
Coolant fan does not come on
Replaced fan
Replaced fuse
Replaced relay in fuse box under hood
A/c blows hot air when car is hot and not moving
A/c takes several seconds to switch from defrost to vents when turned on
At idle, car overheats
Engine light showed p0480 and I cleared it
What could the problem be? Dealership told me over the phone that it couldn't be the PCM. Could it be the ECM? Is there another relay? Where is the wiring harness that I need to look for corrosion?
Submitted: 4 months ago.
Category: Dodge
Customer: replied 4 months ago.
I am electronically proficient, mechanically I can do the basics. Pictures and detailed directions are greatly appreciated.
I have all the tools I need to take the car apart and a multi-meter on-hand as well.
Expert:  Dan replied 4 months ago.

Hello,

I am going over your question now and will get back to you shortly.

Customer: replied 4 months ago.
Sounds good Dan, i'm headed to the auto parts store to swap out the temperature sensor in the inside of the front bumper in front of the radiator since they have one on hand and i can test it out for free. I don't expect it to solve the issue since the problem seems to be that a relay or module is not sending the fan to ground to turn it on, but I will update this post after I try the temp sensor.
Customer: replied 4 months ago.
I solved the problem. The fan connector was not secured tightly enough into the fan.