Coolant leaking

Hi Joe,

It kind of looks like #6 in the 1st pic but definitely #1 in the 2nd pic.

Hope this helps.

Hi Joe,

Unfortunately, my tale of woe continues

I replaced the throttle body inlet pipe and there is no more bubbling or leaking. I test drove the car yesterday for about an hour and everything worked great. This morning the car started smoking again as antifreeze leaked onto the exhaust.

As stated, I initially replaced the thermostat housing, then the water pump upon noticing leaking from the passenger side of the engine. The car ran great for a few days but started leaking from the inlet pipe which has now been replaced and is dry as bone.

I've enclosed a new pic of the throttle housing, and I was wondering if you could tell me what the connection is that I have circled. Although I see nothing leaking from that port, I found it rather strange that there was no gasket for that connection either included or removed when I replaced the whole unit.

Where else might I look for a leak?

Thanks again

Yes, that's the pipe in question. However, there wasn't a gasket there when I took it apart. Although it's hard to tell if it's now wet, I'm assuming fluid runs through it, correct? Would I need gaskets for both ends of the pipe? I can't seem to find them in any diagrams.
Thanks.

Hi Joe,

I'm assuming the O rings are the same on both ends based on the diagram of the pipe. Unfortunately, no one locally has it in stock, so I'll need to order it. However, when searching based on model year of car and 1.8L engine, I'm offered three different versions.

Would you have any insight as to which one is correct? "Images attached "

Thanks again

Hi Joe,

Sorry for the delay in getting back, but I finally got to finish up a week ago on Friday and didn’t want to jinx it. At this point, it looks like repairing the 4th leak was the charm.

It turned out it was the pipe’s O ring this time as you suggested, but not the one at the thermostat housing but the one connecting to the left side behind the exhaust manifold. Luckily, I didn’t have to remove the manifold and was able to just slip it in, but it was difficult working around that manifold, not to mention dropping and losing a bolt.

It might have been easier had I removed the component circled in the picture below. I’m sure there would have been a gasket involved, and not knowing the name of that particular component, I decided to work around it as well. Given that we own 3 Sonics (this one the 2013 100K, a 2017 55K & 2020 6K still under warranty for a while) hopefully the repair will be easier as the newer one's age.

Sorry for causing your hair loss.
Thanks so much for all your help.
Tim