[2012 Cruze]

Can anyone help, I have a 2012 Cruze 1.8 Turbo, I had a leak coming from the coolant pipe where the hoses come together with a metal clip, I bought a new coolant pipe from the dealership, replaced it and it still leaks from the same spot, does anyone know why?

 

[cruze2011white]

Are you talking about the hose that goes to the over flow tank?

 

[2012 Cruze]

No, it the pipe where all the hoses come together, it mounts to the block where the thermostat is

 

[cruze2011white]

Can you get a picture of where it is actually leaking?

 

[UpstateNYBill]

What was the part number of the hose? That will help narrow down which one you are talking about.

Also, are you in the U.S.? The turbocharged Cruze is a 1.4 liter engine, not 1.8liter which is the base NA model.

 

[2012 Cruze]

I did some research, the AC Delco part number is 15-11072, my motor is a 1.4 also

 

[obermd]

There's been a redesign on that connector. Specifically which hose connection is leaking?

 

[2012 Cruze]

Its where the overflow tank hose meets the metal clip. Heres another pic.

 

[UpstateNYBill]

If you are talking about a leak at the highest up clip that is shaped somewhat like a "U", you are probably missing an internal rubber o-ring, or a damaged o-ring. Check your old part carefully for a black rubber o-ring. I don't remember specifically for sure, but there might have been a total of two of them.

(edit, yes that's the one in your picture)

 

[2012 Cruze]

What does the new design look like? or do you have the part number, I bought the new pipe two weeks ago, you might think they would have gave me the new design one.

 

[2012 Cruze]

I checked the new one, and it did have a black O ring in there, it just seems weird that Im having the same trouble with both pipes.

 

[UpstateNYBill]

Check the old one for another o-ring. I had the same exact problem when I replaced my water outlet. I'm pretty sure there are supposed to be two o-rings in there. It must fit absolutely tight together when installed, or it will leak.

 

[2012 Cruze]

I already threw the old one out, I checked the old one, I only seen one

 

[obermd]

The new design has a new connector on it. If you got a part with two connectors you should be good. Double check for the o-Ring as UpstateNYBill recommends and also check the clamps to ensure the hoses are fully inserted before you set the clamps.

 

[cruze2011white]

If you replaced this because it was leaking, was it broke? If so check and make sure you didn't a leave a piece from the bad piece in there. When mine was broken I had a piece still in there I had to get out with a screw driver.

 

[NickD]

Depends on the application, either use a bit of silicone grease on an O-ring or non-hardening Permatex. Putting them in dry causes them to bind.

Really dumb on the coolant reservoir or oil filter cap, putting the O-rings on the threads where than can bind if put in dry. More intelligent way is to seat them so that can be compressed like they do on canning jars with a rotating ring on that cap.

It wasn't too long ago, you would never find O'rings on a cooling, oil, or, MVAC system, engineers back then had common sense. Also the SAE had many articles on looking at the food industry for proper sealing and material, that aluminum pop can you pitch is made of far superior materials than what you will find in your heater, radiator, evaporator, or condenser cores.

And you wonder why you have problems?

 

[2012 Cruze]

Thanks for all the help

 

[UpstateNYBill]

You're welcome. Did you find the problem?

 

[NickD]

Of course, everything has to be surgically clean so you get a good fit, really never considered myself to be a mechanic, a janitor is more like it.