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Car overheated |
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Radox
 
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  Member No: #4044
Location: Bad Bergzabern |
Hi, unfortunately I have bad news. My car has been running normally lately, but a few days ago, I noticed a little bit of coolant was gone. I topped it up. Today, after arriving home from work and switched the car off, I noticed the front fan blowing at INSANELY high speed. It stayed so for about 5 minutes and then turned itself off. Coolant was again very low. I topped it up again. And finally, about 2 hours ago, I had to do a short drive of about 10kms. Midway, the temperature gauge started climbing extremely fast, reaching from the normal mid point to the top in about 10-15 seconds. STOP light came up and the message "engine temperature too high, stop car immediately" showed on the display. I stopped in about 10 seconds at the first possibility near the country road and left the engine running. A little bit of smoke also came from under the hood (but not much). The temperature gauge started falling immediately and in about 20 sec reached normal middle levels. I waited for about 5 minutes and switched the engine off. Coolant was way below minimum again and it is obvious my car is losing a lot of it. And there was smell of antifreeze while driving in he last few minutes befor the overheating. I will have the car towed to my Citroen repair shop at Monday, because I have already scheduled a replacement of the faulty steering pump for then. So, my question is, is there a change the engine hasn't been destroyed? It ran normally in the minutes after the overheating and the water temp fell immediately after stopping. The oil temp was at normal level. If so, could it be a faulty water pump, or it is the thermostat? An could the badly squeaking in the last weeks steering pump have contributed to this failure somehow? Fingers crossed. |
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Fraunie
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   Member No: #3763
Location: Stockdorf |
Probably a leaking thermostat housing or a leaking coolant tube or the water cooler itself... Any signs of coolant anywhere? How much did you refill in total? |
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Radox
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Member No: #4044
Location: Bad Bergzabern |
I refilled about 100ml a few weeks ago, about 200ml a week ago, and now i assume about 400ml more are gone. I don't see any coolant on the engine, but it smelss heavily of coolant. |
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Fraunie
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Member No: #3763
Location: Stockdorf |
Your mechanic will find the leak for sure... | ||
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Radox
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Member No: #4044
Location: Bad Bergzabern |
Fraunie wrote ... Your mechanic will find the leak for sure... But do you think the engine can be saved? |
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MGmike
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 Member No: #3151
Location: South Queensferry |
from the fact that the gauge went up above normal, I would say you've been lucky and the engine should be okay. Most terminal coolant leaks are from the lower components e.g. heater pipe and engine inlet manifold. When these fail and the coolant drops out of the engine and the sensor doesn't recognise there's a damaging increase in temp. As Fraunie says, it's most likely a thermostat housing. |
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Fraunie
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Member No: #3763
Location: Stockdorf |
I think the moment you notice a loss of coolant in a more than 15 years old car, everyone of us should be on high alert and immediately exploring possible causes... You don't want a thermostat housing cracking on a high speed drive on a motorway. Then it is very likely that the engine might be terminated... I don't know anybody who has replaced all parts of the cooling system preventively, but quite frankly, that would be the right thing to do, wouldn't it? |
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Radox
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Member No: #4044
Location: Bad Bergzabern |
I changed the thermostat only 6 months ago... | ||
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Fraunie
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Member No: #3763
Location: Stockdorf |
I changed the thermostat only 6 months ago... Probably the upper one. There is another one on the front side and lots of plastic connectors too... |
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321dave
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Member No: #614
Location: Dublin |
Fraunie wrote ... I changed the thermostat only 6 months ago... Probably the upper one. There is another one on the front side and lots of plastic connectors too... |
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Radox
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Member No: #4044
Location: Bad Bergzabern |
So, it turned out to be the thermostat housing (1336Y3) PLUS some plastic coolant pipe (1351KT). Probably the old pipe was broken and it overloaded the thermostat, which as said, I changed only 6 months ago. The engine looks fine, no damage. |
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Fraunie
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Member No: #3763
Location: Stockdorf |
Good news! Maybe they have used a cheap thermostat housing. There are some aftermarket parts available made of lesser quality... |
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