My engine would run hot while idling?

HELPME87

MEMBER
2014 GMC ACADIA
3.6L
V6
2WD
AUTOMATIC
218,618 MILES

I only had 2 relays in my vehicle. My engine would run hot while idling. So I put a relay in the 3rd place which was empty but was labeled fan 3. Now I’m not running hot but my question is this okay to do?

Friday, June 30th, 2023 AT 3:14 PM

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
48,397 POSTS

It sounds like the relay you replaced was for the radiator cooling fans, can you confirm the fans are working by turning on the A/C system and wait about 2 minutes for the fans to come on.

This guide may help as well:

https://www.2carpros.com/articles/why-does-my-car-engine-stall-when-hot-and-how-can-i

Please go over this guide and get back to us.

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Saturday, July 1st, 2023 AT 12:06 PM

HELPME87

MEMBER
2 POSTS

Well, I have the fan issue straightened out. Now I’m having the same issue before with it just turning off while idling or driving for a while. Replaced ignition relay. Could the crank relay play a part in this situation?

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Saturday, July 1st, 2023 AT 7:07 PM

KEN L

MASTER CERTIFIED MECHANIC
48,397 POSTS

Sorry, we handle one problem per thread, Please post your new question here, you must be logged in.

https://www.2carpros.com/questions/new

Cheers, Ken

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Monday, July 3rd, 2023 AT 12:29 PM