Heater hose popped off at firewall

[ExplorerTom]

While driving home on the interstate, I noticed a sudden smell of coolant. I pulled over and found one of the heater hoses had popped off.

Back when I did the intake manifold (August), I had those hoses disconnected. When I reconnected it today, I couldn't get it on tight. There's maybe 1/2" of play in the hose. I managed to get to a point where it didn't pull off but I'm concerned that it's not tight like the other hose.

I feel like the plastic clip that holds the hose doesn't have the "spring" that it use to and that's why it has that play. If I hold the clip up, it seems to hold better.

I have a feeling I can get a new set of clips with a new heater core- but I would rather not if I didn't have to. Although it does have nearly 190k miles now.

Any ideas on keeping the hose attached better?

 

[stamp11127]

Yep, do it once with these:

http://www.rockauto.com/catalog/moreinfo.php?pk=4391565&cc=1362439&jnid=520&jpid=0

Just replace both of them, check fit before ordering. Place the hose clamp so that it easy to get to if you need access in the future.

 

[ExplorerTom]

Thank you!

The white plastic part is still on the hose barb on both sides- is it suppose to be that way?

 

[stamp11127]

It is supposed to stay on the metal line and lock the hose onto to it.

 

[ExplorerTom]

I just ordered 2 to replace the other side as well.

Thanks again for this. While I never had any issues with it after the initial time, the remaining 750 miles were done with 1 eye on the ScanGauge watching for any temp abnormalities, 1 eye on the back window to watch for coolant spray collecting and 1 eye on the road- I'm a little cross-eyed.

 

[ExplorerTom]

So I got my parts. The Dorman 800-404 (linked above) do not fit the metal barb at the firewall (even though it's listed as compatible). The 800-404 is for a 5/8" hose and a 3/4" hose barb. I have 5/8" at both locations.

I tried the 800-403 which is that size but it didn't work (and it is not listed as compatible). I actually broke the quick connect plastic part.

But the Gates Quick-Lok 28500 did work.
Gates Quick-Lok 28500 - Hose Connector | O'Reilly Auto Parts

What a total pain in the butt.

 

[ExplorerTom]

So there's a total of 4 of these quick connects under the hood for the heater hoses. I replaced one back in January. While recharging my AC yesterday, I caused another to leak. I replaced it and the one next to it with Dorman 800-403 quick connects (do NOT get the 800-404 as mentioned above). After I started up the motor, the last one decided it was missing out and started leaking. So now all 4 are replaced.

I'm not sure how I broke the original Dorman 800-403 mentioned above. Maybe I didn't line up the white plastic piece to the black plastic piece while connecting them.