Radiator Pressure test

[THE DONALD]

Hey Guys. 2011 Tahoe LTZ. I’m trying to find a leak in the radiator. It may be just a hose or wherever. Rather than go through the whole replacement, and find out it was it a leak in something fixable, I’d like to pressure test the system. I do not have a radiator cap on my radiator. Do I just hook it up to the overflow tank? The other question I have is I hear the oil cooler and transmission coolers have a clip that hold the lines in instead of screw in lines. What is the name of his clips so I could do the research on it? Thanks as usual you guys Are most helpful.

 

[swathdiver]

Hey Guys. 2011 Tahoe LTZ. I’m trying to find a leak in the radiator. It may be just a hose or wherever. Rather than go through the whole replacement, and find out it was it a leak in something fixable, I’d like to pressure test the system. I do not have a radiator cap on my radiator. Do I just hook it up to the overflow tank? The other question I have is I hear the oil cooler and transmission coolers have a clip that hold the lines in instead of screw in lines. What is the name of his clips so I could do the research on it? Thanks as usual you guys Are most helpful.

15052228 and 15724727 and 22988272

Lisle Jiffy-Tite 22930 and 22940 are what I use to release the lines from the clips. Using a pick, they go flying.

Engine Oil Cooler Connector Retainer, Transmission Oil Cooler Line Clip

The last part number I just added. Came across it a few hours ago after this post, glad you wrote back and jarred my memory. ACDelco's website shows it but GMPartsGiant's does not say it is for our trucks. Normally I'm inclined to favor GMPG over ACDelco but I do know that the lines on the engine side are 1/2" and they are 3/8" on the transmission side.

 

[THE DONALD]

What are the clips Called

 

[swathdiver]

What are the clips Called

My original post has been edited for you.