[Johnnyeratliff]

As the title says I installed a new duralast thermostat housing and put coolant in. A leak started from the throttle body hose connection as show in the pic. I started it and the leak got faster.

does anyone know if the thermostat housing is defective or do I need to run the engine until it reaches operating temperature?

this is the old housing with the hole it developed.

 

[JLL]

There is obviously not a good seal at that connection. Return the Duralast part and replace with OEM. I would also replace that throttle body heater hose, Or at minimum replace the o-ring.

 

[Frankie_89]

Hey John. I have the same problem with you after replaced thermostat. I found the new thermostat has little bit difference with old one How you solve the problem? Replace the throttle body hose pipe?

 

[Wilson Smith]

I replaced the heaterhose to throttle body and it's leaking on the thermostat housing end. It started a small leak and is now a spout. How do I get it to seal?

 

[Johnnyeratliff]

I replaced the heaterhose to throttle body and it's leaking on the thermostat housing end. It started a small leak and is now a spout. How do I get it to seal?

When I remove the hose connection, I discovered the the portion that inserts into the throttle body was broken. It’s made of plastic that after 9 years and maybe getting hot became brittle. I order a “throttle body inlet heater pipe hose”. It’s cheap maybe $16 on Amazon.

 

[Wilson Smith]

When I remove the hose connection, I discovered the the portion that inserts into the throttle body was broken. It’s made of plastic that after 9 years and maybe getting hot became brittle. I order a “throttle body inlet heater pipe hose”. It’s cheap maybe $16 on Amazon.

I sealed it with high temperature silicone, and gave it 12hours of cure time

 

[Wilson Smith]

I sealed it with high temperature silicone, and gave it 12hours of cure time

I don't have the time and money to get it the right way, I bought a aluminum thermostat housing thinking it shouldn't get hot enough to crack the housing and I bought the line as well, the inlet on the housing is oversized, I took a screwdriver turn it upside down and tapped the quick connect flush with the housing creating a good seal, for extra measures I put high temperature silicone around it, so far so good, it doesn't leak

 

[AutumnCruzeRS]

Id get rid of that autozone housing. I recently had nothing but leaks from 3 of them right out of the box. I ordered a acdelco housing from autozone which finally resolved my leaking issue.

 

[mcarb80682]

Do you guys think we could just close both of those holes or run a hose from there to the coolant reservable because that's where it seems that it goes to it seems that's where the holes goes through

 

[christy]

I've had the same problem. I ordered a new hose and when putting it on I noticed the old one has broken off inside the thermostat housing where it connects. Any ideas how I can remove this without damaging the thermostat housing

 

[Dori S]

I have a similar problem first the thermostat housing assembly where the throttle body heater pipe plastic head fits into the housing assembly was soldered on backwards. I bought two feet of hose and connected it to the brand-new throttle body heater inlet pipe. I ran the pipe around the engine but had enough hose that I could come around the opposite way and put the plastic fitting into the connector on the housing assembly. But the new plastic fitting does not seal. will not seal even with the original o-rings how can I modify this to fit. I hate this car, and I think it knows it!! I am a woman learning how to work on my car out of necessity. If it doesn't start running right I have threatened to have it painted bright pink out of spite!!LOL just kidding I need help

 

[bbdelaney114]

Lol THE best thing you could do is spend the 13 bucks on Amazon and get you a new line and that will fix your issue more than likely. Myself and just about everyone who writes about this has an issue with trying to get the old one to seal correctly even with new O-rings. Its worth the money to keep some of your sanity. Hope this helps you out