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Old 04-22-2018, 06:37 PM   #21
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Old 04-23-2018, 09:07 AM   #22
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Quote:
Originally Posted by maxpowers View Post
55k and I've started loosing coolant. No leaks I can find but the smell is pretty strong on the passenger side of the engine. Any idea where to look, maybe just start with a cap?
Not a bad idea. Cheap insurance. If you're losing it and you can smell it, it's leaking out somewhere. Some leaks won't stop once they start, such as the radiator tank leak I mentioned above.

It's only $8. Smear a thin film of vaseline on the reservoir neck where the two orings in the cap seal against it.:

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Last edited by TboneZX3; 04-23-2018 at 09:11 AM.
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Old 04-25-2018, 11:37 AM   #23
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Quote:
Originally Posted by maxpowers View Post
55k and I've started loosing coolant. No leaks I can find but the smell is pretty strong on the passenger side of the engine. Any idea where to look, maybe just start with a cap?
Look at the top of the motor mount on the passenger side. If there are signs of moisture, replace the coolant reservoir. Alternately, you can simply run your hand over the bottom of the coolant reservoir and feel for moisture. If it's wet, replace it. The coolant reservoir has become a common failure point in the cooling system for the 12+ Focus and 13+ Escape...
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Old 05-12-2018, 03:48 PM   #24
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Replaced the cap, still losing coolant. Felt all around the reservoir with the car running and didn't notice anything significant. Still have a strong smell of coolant in and around the reservoir area.

I think I'm going to go ahead and replace the reservoir because it's cheap and easy. If that doesn't do it I'll buy a pressure tester and go that route. Also wondering if it's coming from the water pump weep hole since that isn't far away. Although I haven't actually been able to find fluid leaking out so far.
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Old 05-12-2018, 04:25 PM   #25
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is the coolant reservoir cap on properly? as it can be tight but then just needs a slight turn more to lock and fully close so the picture on the cap is straight if you are looking at it from the front
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Old 05-12-2018, 06:33 PM   #26
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Just checked, I had bought a Gates cap, maybe I should try an actual motorcraft one? Well the Gates doesn't click and the sticker isn't anywhere near straight.
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Old 05-12-2018, 10:00 PM   #27
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At smaller leak amounts the coolant just appears to disappear. Doesn't mean you don't have a seep type leak somewhere though. The cars have a lot of hoses and two points at each hose there can be a seep. The reservoir can have the cap ooze slight amounts of steam off too. I have chased leaks all over the place on the earlier models and they can be literally everywhere. I just get them to a minimum and stop looking as it is normal to me to lose small amounts over time, the caps alone will do that at having to seal pressure again at heatups. The pressure works the rubber seal to give off small vapor burps at times and normal, to a point. Like every car back to the '50s.

I commonly find the leaks by looking for AFZ residue underneath the car at hose ends, you don't find an active leak as it dries very quickly, only a residue of it where it pools from gravity to dry in a thicker amount to be seen. A drip point if you will. The reservoir tanks can leak from underneath, sometimes one bigger crack or a series of yield stress marks that can ooze coolant out. Be guided by the AFZ smell, my parking spot is like a pocket, it enhances that and I pick up on the smell pretty quick to go after leaks. Sometimes the reservoir caps have to be overtightened a bit, one of my cars is like that, big pliers to add another 1/8 turn after hand tighten to seal it.

The cars can seal to leak absolutely nothing but that is not usual, they all at some point begin to lose at least small amounts and to be expected. It's a function of a sealing system that is not good enough to seal 100% in all cases. You can seal an engine up with 100% water and zero leaks over time and then add AFZ and then leaks show up, AFZ being a slicking agent, it makes the water more able to leak.

All that of course makes the flaw in post #9 harder to find, but that test is different, it is a constant pressure the entire time thing rather than one like a normal car where the engine heats up to pressure then the pressure comes back down at cooling off. The latter can produce a 'pumping' phenomenon, to seep say a couple drops then stop to do it again later. I've watched a radiator cap suddenly spit out a drop to then go back to working right long term, it can happen. You can change the cap but it still may happen again. The vagaries of working with rubber. I've done the lube the cap seal thing too, the rubber gets older and then tends to snag to ball up to cut or shred at tightening it, the lube lets the rubber stay flat to seal better. Pull cap and look, if the seal has snag marks instead of a clean smooth crush groove you are there.

'Probably about every 6 months or so I give it a little top up...'

Perfectly acceptable to me. About what I shoot for.

Last edited by amc49; 05-12-2018 at 10:11 PM.
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Old 05-17-2018, 11:30 AM   #28
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I have a 2012 ti automatic and a 2013 se 5spd, BOTH have had the rads shit the bed from 130k to 150k, luckily it is a cheap and somewhat easy fix to do myself.
The 2012 has been going for over 100k now without any coolant loss whatsoever, the 2013 has been about 15k and is also steady with no loss.
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Old 05-24-2018, 04:48 AM   #29
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Alright I am going to complicate things a little more. As I have said before, when I topped up the coolant it would drop fairly quickly for a few weeks and then stabilise at the level it seemed to like.

Well about 2 months ago I did a coolant change, it was way overdue. Drained all the old coolant, didn't flush as it wasn't looking bad inside at all, just got as much out as I could following Haynes instructions.
Refilled with fresh coolant made up to spec. Ran the engine topping it off as it worked the air out of the system and accidentally overfilled a little bit. Wasn't too worried about this since I figured it would drop naturally anyway as it did before.
No drop at all! Level is still slightly overfull as it was after I finished the job.

Bloody weird car! lol.
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Old 05-24-2018, 05:51 AM   #30
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welcome to cars xD and how they act you may of touched the part that was seeping and when you reattached it it sealed proper... the seeping could of been so small and only when driving so you wouldn't of seen any spots.
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