Radiator Seal = Lowered my temp. by 5 degrees

[ski.dive]

I noticed that my radiator seal was missing.

So I installed one and it lowered my temp. by about 5 degrees

Click bellow=#16 on diagram

https://www.wholesalegmpartsonline.com/showAssembly.aspx?ukey_assembly=391972&ukey_make=1027&ukey_model=14606&modelYear=2008&ukey_category=19545


https://www.wholesalegmpartsonline.com/products/Hummer/2008/H3/SEAL-Radiator/2787166/15806298.html

 

[Ordieh]

My ‘08 ALPHA X came from the factory with the seal and my CE did not. Before I installed one, I used a Dremmel to remove the “ear” from the radiator mount that gets so close to the upper tank of the radiator. Both still have the original radiators and never close to overheating, even with many days above 100 here. Also, if you add 18 ounces of PURPLE ICE, you will notice stable lower temperatures.

 

[Happy Hummer]

I tossed mine with the old radiator. It was if memory serves me correctly a piece of foam.

 

[Jeepwalker]

Excellent reminder!

In the classic car restoration world, rubber air dams around the radiator and shroud seals often went missing or break/shrink. Guys would often spend a lot of money and time chasing and trying to overcome over-heating issues, especiall with big block cars, by installing aluminum radiators, elect fans, etc, rarely considering the air going 'around' the radiator gaps. Now, its more widely reported and most parts suppliers sell foam and rubber replacement kits for classic cars to help restore oem air path 'through' the radiator. Simple things sometimes make a big difference. That was a nice back-to-the-basics catch! Thanks for sharing.

Thanks

 

[Ordieh]

GM part number: 15806298