new coolant leak

Some coolant will be lost so plan on adding.

There is a 'O'ring around the nipple that you will see once the clip is pulled and hose removed....I guess 200k plus miles is starting to show.
'O' ring is probably turned to rock by now.
Be very gentle.....the plastic ends become very brittle in their old age.....if a replacement hose (will have nipples included) is available, I'd probably change the whole thing.
I'm basing my thoughts on thermal cycling.....you have far more than the average 30k driver on the forum and this may make 'O'ring replacement a bit dicey.

Rob

I agree with Robby about just replacing the entire hose. I was talking to my Service Manager he said it's actually easier to replace the entire hose when this happens.

The coolant will evaporate quickly so I wouldn't worry about a fire. If you're concerned run water down onto your engine shield to dilute the coolant. As for air in the system, you will definitely have air in there. The fill procedure is as follows:

With the engine cold, open the surge tank. Fill a 50/50 mix of coolant/distilled water to the top of the arrow. Start the engine and let it idle. When you see coolant starting to come back in via the small return hose top off the tank again to the top of the arrow and then put the coolant lid back on. Keep an eye on the coolant level for the next couple of thousand miles (a week at your driving patterns will be sufficient) and then top off the tank again.

I just saw mine leaking from the same place also. I was told that it was the upper radiator hose. I went to replace it and notice what looks like the thermostat housing is broken where the hose goes in. I think that this hose also goes into the housing.

This design change tells me GM is actually hunting for all the possible coolant leak points.

This is great guys, and nice pics CEBT!

I've been suspecting a slow coolant venting from this joint for a long time now as I can smell coolant under my hood and the smell leads me right to this area. Another member had also had this o-ring replaced under warranty for a leak.

My coolant level has been steady for a while now but I can still smell coolant under the hood, and it's always coming from this area. CEBT, do you happen to have the part number for the hose and ring?

Blue Angel said:

This is great guys, and nice pics CEBT!

I've been suspecting a slow coolant venting from this joint for a long time now as I can smell coolant under my hood and the smell leads me right to this area. Another member had also had this o-ring replaced under warranty for a leak.

My coolant level has been steady for a while now but I can still smell coolant under the hood, and it's always coming from this area. CEBT, do you happen to have the part number for the hose and ring?

Click to expand...

New style and part number [h=2]13408385[/h]
Should be under ten bucks

Blue Angel said:

Mine is the old style as well:



Old part number looks like 95211798.

The clip holding the pipe to the water outlet looked like it may have wiggled out a bit (not fully seated) so i pushed it in all the way. This made no difference in how much play there was between the pipe fitting and outlet, which seems to be a pretty loose fit.

Note the appearance of some sort of residue around the clip in the 2nd picture. I'm not sure if this is road salt, coolant or what. I did have this pipe off when replacing my surge tank, so it may be residual coolant from that episode.

Thanks for all the info guys!

Click to expand...

That hose looks clean if you ask me no signs of a visable leak.

Yes 13408385 is the new part number, I paid $10 for it. There is no Oring.

CruzeEcoBlueTopaz said:

That hose looks clean if you ask me no signs of a visable leak.

Click to expand...

Agreed, but it smells as though it could be venting through the joint somehow. For $10 I'll probably get the new hose and see if there's any improvement.

When you remove the hose I would recommend having something ready to plug the hole otherwise the coolant will not stop draining. The reason I mention this is because when you remove the old hose and compare it to the new hose you will notice its obviously different and it might take a minute to figure out how it connects.

Yeah, I ran into that when I replaced my surge tank. The connector is lower than the surge tank, so the entire tank (and then some) would drain before it stopped.

IIRC, you need something to stick down inside the water outlet to stop it from draining, right? I'm not sure if a finger would suffice or not. I may choose to drain the coolant level down with the rad petcock before replacing the hose, that way I can wipe the inside of the connecting area of the water outlet clean before seating the new hose connector.

I just bought this new hose assembly... $25 at my dealer in Canada!!! Man, do we ever get hosed for parts up here!!!

Blue Angel said:

Yeah, I ran into that when I replaced my surge tank. The connector is lower than the surge tank, so the entire tank (and then some) would drain before it stopped.

IIRC, you need something to stick down inside the water outlet to stop it from draining, right? I'm not sure if a finger would suffice or not. I may choose to drain the coolant level down with the rad petcock before replacing the hose, that way I can wipe the inside of the connecting area of the water outlet clean before seating the new hose connector.

Click to expand...

You definitely want to wipe out, clean, and dry the connections before connecting hoses and tanks. This is Plumbing 101 and it applies to all liquid carrying pipes and hoses.

I have a 2013 Cruze with 78,000 miles. Its leaknig from the Water Outlet part # 55565334. When I look up that part is says it discontinued??? WATER OUTLET for 2013 Chevrolet Cruze|55565334
The leak might be coming from the Inlet hose, but not sure. Anyone know about the discontinued part or if this is covered under any warranty?

Is this hose and fitting hard to change?

What other items should I look for with a leak in this area?

It is not hard to change at all. The hardest part is draining your coolant down a little before taking the hose off so you don't make a big mess.

If you have the front of the car jacked up and drain the coolant down until there's nothing left in the coolant reservoir, it's just a matter of puling the old hose off the reservoir, unclipping the old hose from the water outlet, and installing the new hose in the reverse order. With the new hose installed, top up the reservoir and rinse any spilled coolant from under the hood with water.

Take it for a short drive, park it and let it cool, and then top up the coolant again. Over the next few days air will gradually work its way out of the engine and you'll need to top the coolant up again, always with the engine COLD.