Coolant Leak - Running Out of Ideas

[SeanZ4]

I should have made myself more clear. I didn't think it was your coolant cap. I was suspecting the heat exchanger. Do you have any coolant in your oil?

sean

[Tranlm]

Since the pressure is decreasing slowly, my guess would be one of the gaskets.

Good luck though and please keep us updated! Thinking about it, it might be easier if you were to take off the bumper to expose the radiator, open the engine compartment, jack the car up, and wait til night time before running the car and UV light. Should make things easier and quicker for you.

[JamesBorisPerez]

That's odd, I had a bad leak and had to replace the water pump, I also replaced the cap and belt. After I did this there was no leak but I noticed a smell. The coolant did not drop so I did not pursue it.

Please let us know what you find out, Thank You.

[blue2000s]

Originally Posted by SeanZ4

I should have made myself more clear. I didn't think it was your coolant cap. I was suspecting the heat exchanger. Do you have any coolant in your oil?

sean

Nothing external to the oil cooler. I'm not seeing any indication of coolant in the oil.

[blue2000s]

I added the UV dye and ran the car for a while. I pulled off the under-panels and looked at the water pump area, radiators, and the coolant fittings. Still no luck on finding where the coolant is going. The oil doesn't appear to be glowing. But I'm not sure if there was coolant in it, it would be enough to show up.

I'm still noticing the sweet smell when I start the car hot. So it's going in to the mechanic on Tuesday.

[extanker]

Originally Posted by blue2000s

I added the UV dye and ran the car for a while. I pulled off the under-panels and looked at the water pump area, radiators, and the coolant fittings. Still no luck on finding where the coolant is going. The oil doesn't appear to be glowing. But I'm not sure if there was coolant in it, it would be enough to show up.

I'm still noticing the sweet smell when I start the car hot. So it's going in to the mechanic on Tuesday.

use your nose....really...try and catch a wiff ..is it the hvac ducts...coming in the window...front/rear of car..inside /outside...some cars have their heater fan motors running at very low speed even when the system is off so the smell could be coming from the vents via the heater core area

[blue2000s]

Originally Posted by extanker

use your nose....really...try and catch a wiff ..is it the hvac ducts...coming in the window...front/rear of car..inside /outside...some cars have their heater fan motors running at very low speed even when the system is off so the smell could be coming from the vents via the heater core area

As noted, the heater core is completely dry.

[JFP in PA]

You could have a slight leak in the head that is going directly into the combustion chamber and being burnt off. Possible head gasket, but more likely a cracked head...........

[blue2000s]

Originally Posted by JFP in PA

You could have a slight leak in the head that is going directly into the combustion chamber and being burnt off. Possible head gasket, but more likely a cracked head...........

I think you're probably right. I hope it's just the gasket.

[Tranlm]

head gasket does make sense actually. That'd be a good reason why you're not seeing the glow.

[extanker]

sup ? fixed ?