Coolant/Water boiling in the reservoir?!

[Adrian@TORQEN]

Strange one tonight, stuck in traffic on A406 near Neasden in London for few good minutes and as I was moving sloooooooooooowly heard some funny noise, similar to a helicopter noise really far in the sky. Lowered the window and no sign of a helicopter, put the windows up again and noise came back. All happening in less than a minute. Then I checked the dashboard and the water gauge was on red, stopped immediately just off A406 and opened the bonnet. The coolant in the reservoir was boiling really hard and as soon as I stopped the coolant was coming off the overflow, must have been at least 500ml-1litre spilled in the road.

 

Being afraid that it could be the head-gasket from overheating I called RAC, didn't want to start the car again. An hour later, the guy came, add some water into the radiator directly and checked all hoses, all dry, no leaks. Started the engine, the engine held its pressure, radiators kicked in in few minutes, water level bellow half way on the temperature gauge, engine absolutely fine! Drove home for another 15 miles with no problem at all, oil level fine, coolant fine, no overheating.

 

The RAC guy said it could be a malfunctioning thermostat and that I should have it checked tomorrow, adding that it was very very odd.

 

What do you think it might have been?

[glrnet]

Have you been stuck in traffic like this before? Are both fans working? Try getting it up to normal temp and then let it idle for the same amount f time you were stuck in traffic to see if you can replicate the fault

[Adrian@TORQEN]

Yes, not the first time stuck in traffic like that. Both fans working ok. Could have been an airlock somewhere, I've changed the hoses and coolant reservoir recently...

[ThriftyFifty]

That is exactly my symptoms when cooling fans were not working mate...

 

 

Popped mine into Abbey and all is well. Car used to be fine if I was driving.. but I stop for a min or two and it would slowly rise until panic kicked in.

Edited December 4, 2012 by ThriftyFifty

[Adrian@TORQEN]

Interesting, will have a look at the fans again today. Will let the car run for 15-30min see what happens.

 

Thanks

[Adrian@TORQEN]

Right, had some more time today to have a look at the car and found out that one of the fans is not working, I guess this is the culprit!

 

What could it be? Do I need to change the fans? Could it be a sensor or a switch?

 

 

 

 

 

 

Posted from my iPhone5 using Tapatalk on iOS6

[rabbitstew]

Fan failure is a common problem on zeds. Id try and short the connector out and see if the fan kicks in. If it does then it may be sensor.

[Adrian@TORQEN]

Do I go for standard / OEM fans or should I look for something like these:

 

http://www.ebay.co.uk/itm/330835996569

[Wasso]

I've heard the Mishi rads are okay but the fans are not.

 

Edit - its either that way round or the other.

 

Check with Keyser as I know he's got te right setup of course

Edited December 8, 2012 by Wasso

[Adrian@TORQEN]

What are the alternatives?

[glrnet]

[R35LEE]

I have fans Adrian

[Tricky-Ricky]

You can repair the fan motors yourself, if you know what your doing.

[rtbiscuit]

^{stock replacement parts should be fine}

[glrnet]

Did you resolve this Adrian? :smile:

[GT4 Zed]

I'd go for the Mishimoto fan with shroud. I not heard any nasty stories about them. Getting them for my Sc. where did you read about this Ian?

 

You can get it from Mishimoto UK for 150 quid. However if you go OEM then get 2 new ones rather that replace the damaged one only. What a pain Addy!

[4RE Leather]

Yes, not the first time stuck in traffic like that. Both fans working ok. Could have been an airlock somewhere, I've changed the hoses and coolant reservoir recently...

 

Hope you get it sorted young man!!

Edited December 19, 2012 by 4RE Leather

[ThriftyFifty]

^{stock replacement parts should be fine}

 

OEM Nissan Motors run some serious money.

 

I went with Mishimoto... heard nothing bad about them and half the price. Not looked back, and can enjoy the Zed again.

Edited December 19, 2012 by ThriftyFifty

[Mishimoto]

Thanks for all the kind words regarding our products! We are now Traders on the forum and I am available to answer any product related questions.

 

Thanks

[samsniss350z]

It could be the waterpumo drivebelt out of adjustment and not gripping enough to operate the water pump, a knackered thermostat, a couple of blades missing off the fan or the fan onoperative or the radiator cap not operating to the correct pressure and causing the sceeching sound. You haven't got any loose hoses anywhere have you? Best of luck with it, i hope you sort it out soon..

[FUG]

Thread revival !

 

My car is now doing all of the above and that video looks worryingly similar

 

What was the outcome in the end ?? ££££

[Adrian@TORQEN]

Replaced the fans, all ok afterwards. Try fixing them first, there is a tutorial somewhere on the forum.

[FUG]

Did you go with genuine fans in the end or aftermarket ? Thanks

[Wasso]

Replaced the fans, all ok afterwards. Try fixing them first, there is a tutorial somewhere on the forum.

 

I think somebody is spending far too much time on american forums again......

 

A "guide" to you and me

[Adrian@TORQEN]

Me!??! I never go there, why would I got there to buy stuff cheaper when I can get in UK? Makes no sense, I'm helping the UK economy :lol:

 

No, seriously didn't even spot that, it's because of IT background