I tested the stat today but it works fine in a hot water test! I replaced it anyway with another 88 C one, since I was replacing the gaskets. No luck - still a low temperature. I'll have to have another go at getting to the sensor I think.
Low Coolant Temperature
Started by
l_bratch
, Apr 09 2010 12:21 PM
19 replies to this topic
#17
minicooper1.3i
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Posted 16 April 2010 - 07:51 AM
Fair enough. Getting the inlet manifold off is quite simple. Just a case of unplugging all the connectors, undoing the fuel lines (you have to squeeze them 'up-down', then pull them off. helps if you jack the car up so the connectors are higher than the tank and make sure the fuel cap is off to relase any pressure), then undo the manifold nuts. Watch out for the connector and wire underneath the manifold which goes to the manifold heater. Whilst the manifold is off you might want to check the heater as they are fragile ceramic and can break easily, causing trouble starting in cold weather.
Just a thought, but is the electric fan coming on at all? There's a sensor in the bottom of the rad at the front. My old SPi one never worked properly.
Good luck with it!
Just a thought, but is the electric fan coming on at all? There's a sensor in the bottom of the rad at the front. My old SPi one never worked properly.
Good luck with it!
#18
icklemini
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Posted 18 April 2010 - 11:47 PM
Before struggling with getting the sender out: it could actually be working correctly... measure the temperature of the pipework that goes into the manifold... is that around the same temp as what the sender is reporting?
The water pipe in the manifold gets sludged up, stop the flow of water, and as a consequence the sender reports a lower temperature - would certainly suggest a high pressure wash out of the manifold water pipe before doing to much else...
hth,
Dave
The water pipe in the manifold gets sludged up, stop the flow of water, and as a consequence the sender reports a lower temperature - would certainly suggest a high pressure wash out of the manifold water pipe before doing to much else...
hth,
Dave
#19
l_bratch
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Mini Mad
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Posted 19 April 2010 - 08:21 PM
I haven't got anything to measure the temperature with, but I'll try and get hold of a pressure washer and blast the manifold pipe with that. If I can't get hold of one, would it be suitable to stick something in there, perhaps a rag, and twist it around to clean it out (or might that be damaging)?
#20
icklemini
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Posted 19 April 2010 - 09:02 PM
You wont really get a rag in there - the pipe is U shaped and they seem to get blocked up in the middle where the bend of the U is...
Nothing too fancy is needed to measure the temperature... you can notice a differance even using a finger... (though that not that scientific) - A lazer thermometer is my weapon of choice mind...
Normal tap pressure should be able to clean it through (unless its badly blocked... clamp up a hose pipe to one side of the coolant pipe, might be an idea to add another length of hose to the other to act as a drain (To save spraying water everywhere), then open up the taps
Nothing too fancy is needed to measure the temperature... you can notice a differance even using a finger... (though that not that scientific) - A lazer thermometer is my weapon of choice mind...
Normal tap pressure should be able to clean it through (unless its badly blocked... clamp up a hose pipe to one side of the coolant pipe, might be an idea to add another length of hose to the other to act as a drain (To save spraying water everywhere), then open up the taps
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