|
|
Post by Rambler on Mar 25, 2019 18:09:46 GMT
Well ok , I'd kept an eye on it for the last few weeks.
It's stayed on low for weeks , it needed about half a cup on Sunday.
As it was about an inch below min.
But tonight, driven home from work...
It's dripping off the offside suspension arms etc.. under the car.
A right mess.
Still only covered 47k miles.
Can't quite believe it's doing this :-(
Just booked it in with Toyota..on Friday.
Earliest.
|
|
|
|
Post by Rambler on Mar 25, 2019 19:12:52 GMT
Stupid stupid me.....
I'd ran a flexible clear rubber tube from that tube discharge just under the coolant cap.
It's spat out some more from my top up yesterday.
But it's spat out of the other end of my flexible rubber tube.
Which I poked through a hole in the inner wing and left dangling just above the wheel arch liner.
Whatever has spat out, has covered suspension stuff.
All this instead of it spitting out in the engine bay 😂
As you say folks... I'm my own worst worrier.
It's not overheating, it's just finding it's own level....
And all because of of me and a bit of clear hose.
I feel a right plonker.
Perhaps I should delete this thread 😂
|
|
|
|
Post by unclebob on Mar 25, 2019 20:11:56 GMT
Stupid stupid me..... I'd ran a flexible clear rubber tube from that tube discharge just under the coolant cap. It's spat out some more from my top up yesterday. But it's spat out of the other end of my flexible rubber tube. Which I poked through a hole in the inner wing and left dangling just above the wheel arch liner. Whatever has spat out, has covered suspension stuff. All this instead of it spitting out in the engine bay 😂 As you say folks... I'm my own worst worrier. It's not overheating, it's just finding it's own level.... And all because of of me and a bit of clear hose. I feel a right plonker. Perhaps I should delete this thread 😂 Look at that question and answer before we’ve had chance to help 😉😉 |
|
|
|
Post by charliefarlie on Mar 25, 2019 20:39:13 GMT
Stupid stupid me..... I'd ran a flexible clear rubber tube from that tube discharge just under the coolant cap. It's spat out some more from my top up yesterday. But it's spat out of the other end of my flexible rubber tube. Which I poked through a hole in the inner wing and left dangling just above the wheel arch liner. Whatever has spat out, has covered suspension stuff. All this instead of it spitting out in the engine bay 😂 As you say folks... I'm my own worst worrier. It's not overheating, it's just finding it's own level.... And all because of of me and a bit of clear hose. I feel a right plonker. Perhaps I should delete this thread 😂 Don’t worry Jamie..... Nay bother at all. So long as your car is ok that’s the main thing 👍👍 |
|
|
|
Post by Rambler on Mar 26, 2019 9:25:22 GMT
So, seems I need a new coolant vessel cap.
As this one is letting by.
It's the only place where coolant is weeping from.
And I assume the denso coolant cap is specified to a rating for pressure.
I've ordered a genuine one from Toyota , hopfully screw it on and no more weeps.
From what I can see , it's only an neoprene o ring seal.
I guess that may have hardened won't take pressure anymore.
Which is why it's letting by and weeping.
|
|
|
|
Post by davidwilson on Mar 26, 2019 11:32:23 GMT
So, seems I need a new coolant vessel cap. As this one is letting by. It's the only place where coolant is weeping from. And I assume the denso coolant cap is specified to a rating for pressure. I've ordered a genuine one from Toyota , hopfully screw it on and no more weeps. From what I can see , it's only an neoprene o ring seal. I guess that may have hardened won't take pressure anymore. Which is why it's letting by and weeping. That's a quick and easy fix - good stuff. |
|
|
|
Post by Rambler on Mar 27, 2019 10:28:36 GMT
Well I'd bought a pattern coolant cap from eBay weeks ago now.
But I was convinced that wasn't the cause.
So I tried it yesterday , bingo... no leaks.
Just waiting for the genuine Toyota one to arrive now.
I'm just amazed that the cap can fail.
😂
Update edit ,changed the pattern cap for the genuine Toyota cap.
And guess what- it now weeps from the spout again.
Only a weep....
Coolant is 15mm below low mark , it's been at that level for a week.
Guess I'll fit the pattern one again.
|
|
|
|
Post by Rambler on Mar 29, 2019 20:58:16 GMT
Right, having more thoughts on this subject.
One assumes that the little tube spout thing is to relieve pressure , should the vehicle coolant get too hot ?
My temperature gauge never gets above halfway.. even in traffic.
The coolant in the vessel has never even come close to ' boiling ' or the top of that vessel.
The only reason I can think coolant could escape is with it sloshing around whilst driving along.
Now, my Rav is quite bouncy with my bfg tires.
Some might say it's.... horrid on bad road surfaces.
But on good roads it's fine , but I've been running these tyres almost since I bought the car 3 years ago.
And I've only had the coolant problem since last Oct.
I wonder if Toyota have updated that coolant cap design ?
As the pattern one was fine
Perhaps I'll run the pattern one for a week or so... see what happens.
I just want to get to the bottom of what's happening.
|
|
|
|
Post by bothwellbuyer on Mar 29, 2019 21:19:27 GMT
Radiator caps are set for pressure ...and will weaken through age. The pressure in the system I think allows the coolant to rise above 100C without boiling over (50 years since I did Physics). The RAV I had which was used for everyday use and had a turbo ran fine but if I over-filled radiator it would blow out the excess. However we'd removed the expansion tank because with the correct coolant level, it never ever used the expansion tank. However it was neat anti-freeze that was in.
|
|
|
|
Post by Rambler on Mar 30, 2019 15:43:24 GMT
Radiator caps are set for pressure ...and will weaken through age. The pressure in the system I think allows the coolant to rise above 100C without boiling over (50 years since I did Physics). The RAV I had which was used for everyday use and had a turbo ran fine but if I over-filled radiator it would blow out the excess. However we'd removed the expansion tank because with the correct coolant level, it never ever used the expansion tank. However it was neat anti-freeze that was in. Yep, it's odd - in the manual it says coolant should be between low & high. Mines below low , but doesn't hurt it. Doesn't overheat, works fine- and still spits out excess. I'm driving for an hour tomorrow so see what happens. Going to keep Toyota coolant cap on... Again see what happens , and carry some spare coolant case I lose too much. |
|
|
|
Post by Rambler on Mar 31, 2019 18:35:17 GMT
Ok dokey....
Right , after my hours drive to a walk in Suffolk..
Lovely day out 😊
Now , back to coolant!
So , with the new genuine Toyota coolant cap on.
It still spits out excess , just splashes over suspension turret, rear of coolant vessel and slightly on side of engine cover.
And the coolant is still 15mm below low mark.
I've read it could be " over pressurising "
The head gasket ?
I'm just fed up with the mess it keeps making.
So I've put the eBay coolant cap on again.
That seemed to hold early last week, see what happens... as it's rated the same.
What I am concerned about is if I DO have the engine trouble earlier models had ?
|
|
|
|
Post by jasehutch on Mar 31, 2019 19:22:02 GMT
Is it under warranty Jamie ?
If so , why not let Toyota have a look ?
|
|
|
|
Post by Rambler on Mar 31, 2019 19:33:08 GMT
Is it under warranty Jamie ? If so , why not let Toyota have a look ? It's supposed to be jase , but I bet because of my lights wiring modifications they'll dispute it. My extended warranty goes to Oct this year. But they'll always wiggle out of it. Probably worth getting them to look though. It's just weird. IF it's the start of head gasket troubles.... uh oh 😢 But oil is fine , on dipstick , cap and no grey smoke either. I've also just put the eBay coolant cap back on again. IF that holds.... brill, again. I'll return the Toyota cap as faulty.🤣 |
|
|
|
Post by davrav on Mar 31, 2019 19:34:06 GMT
Thing is Jamie, if you leave the coolant 15mm below the 'low' level mark, does it go any lower over time? If it stays at that level, it won't be using/losing coolant will it?
The plastic tank is there to accommodate expansion of the fluid when hot. Are you checking when hot or cold? Is the vehicle on a dead flat surface when you check.
|
|
|
|
Post by Rambler on Mar 31, 2019 19:52:48 GMT
Thing is Jamie, if you leave the coolant 15mm below the 'low' level mark, does it go any lower over time? If it stays at that level, it won't be using/losing coolant will it? The plastic tank is there to accommodate expansion of the fluid when hot. Are you checking when hot or cold? Is the vehicle on a dead flat surface when you check. Hear you David, since last Oct- I've got into checking at end of every journey I do. For last few months, coolant has sat about 15mm below min on cold. And just about touches low mark when at full temp. I'm always on level ground too. There's plenty of expansion there , but it still spits out excess. Barely shows on the side of the vessel , so you're right... it's not using any or very little as I keep an eye on it. So.. what's causing the cap to give and spit out some ? Its really only a visual thing, but it's made me aware of it doing it. |
|
