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Ask Gm Tech (Cam) Your Own Question
Gm Tech (Cam)
Gm Tech (Cam), GMC Mechanic
Category: GMC
Satisfied Customers: 1690
Experience:  GM Grand Master Technician 2007. 14 year experience.
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My cooling fans won't come on. I've replaced the thermostat

Customer Question

My cooling fans won't come on. I've replaced the thermostat and engine cooling temp sensor and still no change? All fuses and relays are good. Also ac doesn't blow cool?
JA: Have you checked the connectors on the sensor itself? It's important that they not be loose or corroded.
Customer: Yes
JA: What is the model/year of your GM?
Customer: 2005 GMC Sierra Vortec 5.3L
JA: Are you fixing your Sierra yourself? What have you tried so far?
Customer: Yes. The issue I was trying to fix initially was the ac but while trying to figure out why my condensing fan wasn't coming on, I noticed my second cooling fan for the radiator wasn't coming on either...?
JA: Anything else you want the mechanic to know before I connect you?
Customer: No I think that's pretty much it.
Submitted: 2 months ago.
Category: GMC
Expert:  Dan replied 2 months ago.

Hello, my name is ***** ***** I'm here to help get your problem solved.

Expert:  Dan replied 2 months ago.

I see you said you noticed 1 fan wasn't working, does that mean 1 fan still does work?

Customer: replied 2 months ago.
Hey dan, I appreciate your effort to get in touch but I had already received the answer I needed. I didn't realize it was gonna take so long.
Expert:  Dan replied 2 months ago.

What was problem? I was guessing relay or wiring.