Coolant pipe fitting leak downstream from thermostat

[Angelo]

I noticed coolant leaking from this fitting. It is a smaller diameter metal pipe going into the hex fitting, there is some kind of plastic in there and I can feel it is loose. Any idea what this is called and how I can replace the fitting?

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[PlayingWithTBI]

I call it a heater hose quick connect fitting. Here's one

https://www.amazon.com/Dorman-800-401-Heater-Quick-Connect/dp/B000CIR1QG

 

[RawbDidIt]

The plastic clip isn't really responsible for sealing, other than holding it in place. It'll feel loose even if it's doing its job. The seal is actually inside the fitting. I found one at Oreillys, but make sure it's the right size, the inlet and outlet to the heater core are different diameters on my 97, possibly on yours as well.

https://www.oreillyauto.com/detail/...ght-hvac-heater-hose-connector/800401/4257482

Sent from my SM-N976V using Tapatalk

 

[someotherguy]

Don't reef on that fitting or it'll break right off.. pot metal garbage

Richard

 

[Angelo]

I call it a heater hose quick connect fitting. Here's one

https://www.amazon.com/Dorman-800-401-Heater-Quick-Connect/dp/B000CIR1QG

Thanks for pointing me in right direction, I wasn't at all familiar with fittings in this system. I think this part will do but can get at O'Reillys today

 

[Angelo]

The plastic clip isn't really responsible for sealing, other than holding it in place. It'll feel loose even if it's doing its job. The seal is actually inside the fitting. I found one at Oreillys, but make sure it's the right size, the inlet and outlet to the heater core are different diameters on my 97, possibly on yours as well.

https://www.oreillyauto.com/detail/...ght-hvac-heater-hose-connector/800401/4257482

Sent from my SM-N976V using Tapatalk

Appreciate the insight, my local O'Reilly's has it in stock for 8.99. Maybe I'll take it off and take with me in my other vehicle to compare sizes

 

[Angelo]

Don't reef on that fitting or it'll break right off.. pot metal garbage

Richard

Yes Dr Shock

 

[Schurkey]

Yup, the original ones are a corroding piece of crap. The Dorman replacement is actually much better than Genuine GM. The Dorman unit on my '88 is over 20 years old, and looks like new.

One hopes they're still made the same way now. Dorman doesn't have a great reputation for quality. They have a reputation for sourcing knockoff parts from Communist China.

 

[Steven Petersen]

They have a reputation for sourcing knockoff parts from Communist China.

So does AC Delco these days.

 

[454cid]

This the first time I've seen this addressed on the diesel.