No Temperature indication
#1
No Temperature indication
Hi
Just got the Daimler 6 out of mothballs for first real run this year. Everything running great except the temp gauge reads very low or not at all. Car was up to temp I would have said. When I stopped for gas the needle crept up, but on the run again it dropped right off.
It was a very cold day with minus winds, but even so, can’t believe it would be that low.
Im not too bothered but will it affect the running, if the brain thinks it’s not hot enough? Could just be the gauge I guess but it does move on stopping.
Any ideas?
Regards W
Just got the Daimler 6 out of mothballs for first real run this year. Everything running great except the temp gauge reads very low or not at all. Car was up to temp I would have said. When I stopped for gas the needle crept up, but on the run again it dropped right off.
It was a very cold day with minus winds, but even so, can’t believe it would be that low.
Im not too bothered but will it affect the running, if the brain thinks it’s not hot enough? Could just be the gauge I guess but it does move on stopping.
Any ideas?
Regards W
#2
#3
As Xalty mentioned the instrument cluster is the single wire sensor and the ECU engine regulation Temp sensor is next to it as the 2 wire sensor
You observed probably by feel that your coolant is up to temp but the thermostat my be " floating " back and forth on the road
The 2 wire temp sensor has to see 88 degree C to be in the ECU closed loop mode
On the X300 the thermostat doe not take a O - ring , even f it comes with one
A 0 - ring if installed will crack the thermostat housing
The instrument cluster gauge is a dummy gauge and not so much as a arcuate temp response so is not the most confidence building for information
But you have 2 pieces of information pointing to the actual coolant temp is in question
Coolant fluid level correct ?
You do have a fuse to look at and this has to do with the O2 sensors that are warmed up by heaters
The fuse # 14 / 10 amp right engine fuse box covers all your O2 sensors , you may have 2 or 4 O2 sensors
You observed probably by feel that your coolant is up to temp but the thermostat my be " floating " back and forth on the road
The 2 wire temp sensor has to see 88 degree C to be in the ECU closed loop mode
On the X300 the thermostat doe not take a O - ring , even f it comes with one
A 0 - ring if installed will crack the thermostat housing
The instrument cluster gauge is a dummy gauge and not so much as a arcuate temp response so is not the most confidence building for information
But you have 2 pieces of information pointing to the actual coolant temp is in question
Coolant fluid level correct ?
You do have a fuse to look at and this has to do with the O2 sensors that are warmed up by heaters
The fuse # 14 / 10 amp right engine fuse box covers all your O2 sensors , you may have 2 or 4 O2 sensors
Last edited by Parker 7; 04-04-2022 at 11:59 AM.
#4
#5
#6
I wouldn’t say it was swinging wildly, but when I think about it , the temp allways seemed slow to register. I guess I won’t know till I put a thermometer on to see what it really is! Where would you put the thermometer on to test it. The block or the thermostat. My experience was from younger days, that an engine block or water system should be just too hot to leave your hand on, just like a domestic hot water radiator, which usually runs at about 90C.
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Parker 7 (04-04-2022)
#7
Usually the hose going to the radiator as it should have some flow if the engine block is up to temp
To improve the response on the instrument gauge remove the single wire sensor and sand the tarnish from the copper crush washer and the seat on the housing
This is the ground path for the sigle wire sensor
It will be pressurized with boiling fluid so cooling precautions
To improve the response on the instrument gauge remove the single wire sensor and sand the tarnish from the copper crush washer and the seat on the housing
This is the ground path for the sigle wire sensor
It will be pressurized with boiling fluid so cooling precautions
Last edited by Parker 7; 04-04-2022 at 01:31 PM.
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#9
#10
Ok fine thanks.
I am just North of Bordeaux, ' amidst the vines and the sunflowers'. It’s beautiful but unusually very cold right now. I am English but living here permanently. Love it, a very slow pace of life. Not like the US at all. But I love the US, don’t get me wrong, I’ve spent a lot of time there, my son is on Long Island. you’re in Kansas, don’t think I been there, travelled to most of the US though.
W
I am just North of Bordeaux, ' amidst the vines and the sunflowers'. It’s beautiful but unusually very cold right now. I am English but living here permanently. Love it, a very slow pace of life. Not like the US at all. But I love the US, don’t get me wrong, I’ve spent a lot of time there, my son is on Long Island. you’re in Kansas, don’t think I been there, travelled to most of the US though.
W
#11
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