2006 Yukon Overheating

[Zebra]

My yukon is overheating Checked and coolant is full. Then I noticed electric cooling fans not running replaced all 3 relays 2-4prong 1- 5 prong. Its still getting hot and the fans are not coming on. Any Idea's


Thanks George

 

[Zebra]

PS Engine light on as well

 

[Zebra]

Anyone tell me the location of the coolant temp sensor ?

 

[Zebra]

ok replaced coolant temp sensor and all 3 relays still no fan action and engine gets hot

 

[dz2a8r]

when the engine is hot turn it off and leave the key on, use a test light and back probe the connector on the fans,use a test light with a tpin so you can probe the hot and the ground side with the test light, if the test light lights up youll have to repalce the fans, if it doesnt light up ground the test light and and check for power to the fans, if you have power to the fans at this point its a ground issue, if you dont have power its most likely a power issue......just a good place to start