Look for a odd coolant leak !

[MAXIME]

Hi Guys,

I’m a french guy, so would you excuse me for my language n vocabulary fault, :dry: , when i will trying to explain you my issue.

My car is a VW Golf 1997 1.9 TDI with 1Z motorisation 90ph

And as like the title of the topic tell you, i’m looking for a coolant leak.

Let me explain what happen :

The issue start by a red light blinking on my dashboard couple weeks ago, after a trip of 600 miles (1500km), so i thought its due to the season and its high temperature (summer) and the long trip.
So i add some coolant in the expansion tank, and i think it s OK.

Some day after i ve the problem again and again, so i keep an eye on the expansion tank, and i notice that :

Sometime, when i going to take my car to go to work for example, i fill the expansion tank in the morning.

When i take my car to go back to my home, i check the tank again, it seems to be OK, filled to the right level, i start the car and go away, after just an half mile, my warning indicator blink start blinking.

This situation going worst to worst, day after day, now, i have to fill it on the morning and check it in the evening when i go back to my home after work and by the way fill it again.

I have to mention this, i thought i found the leak once so i changed the hose who linked the tank an the rest of coolant circuit.

After that i ve got the same issue so i changed the tank without its cap, same issue !

After that i decided to change the cap because i thought the circuit got to much pressure who could not be released by cap issue, cap spring or cap system fault.

So i hope, my explanation is not so misunderstandable and my english writing is acceptable…

Thanks for the help and your write back in advance 🙂

JM

Topic

[EricTheCarGuy]

Diesels are VERY particular about being in time. If it’s not in time, it won’t start. Fuel psi is also critical. I would go back and make sure you got everything in time and also check the fuel pressure to see if it’s in spec.

Good luck and keep us posted.

[Author]

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