Led light bar behind grill overheating issues

[sierrathewhitesierra]

Thanks man I aprreciate it. Turns out it’s the thermostat that’s in my truck is slower than previous years to prevent the radiator from cracking


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[WinOrDie]

Hahaha it's like a little ghost coming to get you

[dieselfan1]

12 hours ago, WinOrDie said:

Alright so I literally just joined about 5 min ago and this is my first post... I know it's a year old but I came across this while looking for info on putting a 20" bar behind the grill of my '16 CR-V.

 

Anyways, my 2012 Sierra has 6 light bars (small to medium) that are all blocking air flow and I carry around a solid 2500+lbs at all times... Never once has my temp gauge moved. 

 

I have 5 behind the grill and 1 in the bumper.

7" single row x2

7" dual row

10" dual row

12" dual row

22" dual row

 

Hopefully by now you were able to figure it all out but I really doubt some lights would be an issue unless your towing 10,000lbs in 100°+ weather or have an already weak cooling system.

I can't believe you don't overheat with all those lights blocking the radiator. 

[WinOrDie]

49 minutes ago, dieselfan1 said:

I can't believe you don't overheat with all those lights blocking the radiator. 

I have had that rack/tool box setup for the last 3 years and those lights for at least the last year. I drive about 250 miles a week and on a normal day I roll around at 8500-9000lbs. During the summer I regularly load another 1000lbs in the back.

 

I drive 90% city and overheating has never been an issue but to be fair it rarely gets above 85° where I live. 

[1dirty17]

So I’m thinking of adding a 42 “ light bar to my grill on the top side of it but I’m a bit worried that might truck will over heat.I'm also think of putting a piece of 2x4 as a mock up of the light bar to see if it overheats my truck  before I start to trim things on it