White smoke/Coolant Jumpy/Dispatch 1998 XUD9 TE

Oscarklemo · 2025-07-09 15:58:20

Hi...

Upon buying my van, I did a service on it. Oil change and topped up the coolant (also changed the glow plugs).

For some time, I've not experienced it having much of a trouble starting and I havn't experienced any white smoke upon startup.

Now it's back though. Also, the coolant level light turned on a couple of days ago. It disappeared almost immediately but I checked it anyway. It seems I've lost quite some coolant.

The manual says it should be between the minimum and maximum marks, but a can't really see any such marks.

Is the red marking the max and the blue marking the min level? In that case I've lost almost all in driving about 2000km, seems a bit excessive eh?
I've never reached 90 centigrades on the thermometer so it seems it still cools well.

How do a check if coolant is leaking into engine and how do I stop it from doing it?

I read in the other white smoke/trouble starting thread about loosing three bolts on the pump pulley and turning the pump and this should fix the trouble. I'm happy giving it a try but I'm lost as to where this pulley is and how to turn the pump.

Can anyone help by marking them out on this picture?

RegW · 2025-07-09 17:31:12

Leave the pump alone, unless there is solid evidence it has been mis timed, leave it be.
It if the pump was wrongly set up, I reckon it would have been obvious after the glow plugs were replaced.

I always check the temp gauge against an IR thermometer so know if I can trust it
'white smoke' from poor combustion can easily be confused with water vapour and vice versa.
so you need to establish what it is exactly.

(It's also possible for it to be both of course)

I can see coolant in your pic so you dont seem to have lost a lot in 2000km
I'd check all hoses carefully when fully warmed up and running
check around the heater too.

Last edited by RegW (2025-07-09 17:38:20)

kenbw2 · 2025-07-09 20:07:35

There are two places where water and oil come in proximity - the head gasket and the oil cooler

Either way you'd expect some mixing. When my oiler cooler leaked, I got oil droplets in my coolant. It made a right mess. Was an easy enough fix

The head gasket I'm sure you're aware is another beast. The classic sign is yellow/brown oil. Do you have any sign of that?

The entirely other possibility is that the coolant is leaking out somewhere, but that wouldn't explain the white smoke of course

I agree with leave the pump alone unless it's obviously mistimed

Oscarklemo · 2025-07-09 21:51:08

I can't see any leakage when I've been parked either at work or at home, being parked on asphalt i would se some evidence. Im parked in a basement garage at work.

Regarding the oil, what I could see upon changing it was that it was quite black of soot but I think that's quite expected when changing.

But surely the coolant level can't go from filled to lights on in 2000km? Something must be wrong?

In my 2012 skoda I've never even thought about coolant levels and I've had it since it came from.the factory.

Back to the jumpy. I'm thinking of changing the timing belt. Mostly because I don't think its been done and its at 280 000km now... Want to enjoy the van a bit.longer
A change at the shop.is around €1100 which is far more than I bought it.for but now I'm getting quite attached to it.

kenbw2 · 2025-07-09 21:57:29

Oscarklemo wrote:

I can't see any leakage when I've been parked either at work or at home, being parked on asphalt i would se some evidence. Im parked in a basement garage at work.
Regarding the oil, what I could see upon changing it was that it was quite black of soot but I think that's quite expected when changing.
But surely the coolant level can't go from filled to lights on in 2000km? Something must be wrong?

My old van used to need constant coolant topups and would never show any puddles or leaks but that's because it would only leak when it was hot because the pressure would be higher

It was evident with the residue it would leave but never wet

You could get the system pressure tested

Oscarklemo wrote:

A change at the shop.is around €1100 which is far more than I bought it.for but now I'm getting quite attached to it.

If I stopped spending on my van when things got past its value, it would have been in the scrapyard... well, the day I bought it!

Gregor887 · 2025-07-10 08:17:10

Start with the cheapest. Replace fluid reservoir cap.

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#1 2025-07-09 15:58:20

White smoke/Coolant Jumpy/Dispatch 1998 XUD9 TE

#2 2025-07-09 17:31:12

Re: White smoke/Coolant Jumpy/Dispatch 1998 XUD9 TE

#3 2025-07-09 20:07:35

Re: White smoke/Coolant Jumpy/Dispatch 1998 XUD9 TE

#4 2025-07-09 21:51:08

Re: White smoke/Coolant Jumpy/Dispatch 1998 XUD9 TE

#5 2025-07-09 21:57:29

Re: White smoke/Coolant Jumpy/Dispatch 1998 XUD9 TE

#6 2025-07-10 08:17:10

Re: White smoke/Coolant Jumpy/Dispatch 1998 XUD9 TE

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