Faulty temp gauge?
Posted
#1333973
(In Topic #163088)
Settling In
My temp gauge always shows zero. The red light flashes when i turn the ignition on but the needle doesn't respond at all.
I did the ground test to check the sender and the needle slowly climbed to just under half way.
I'm guessing it could be either the wiring or the gauge?
Also the digital clock doesn't work It's an every day car so without seeking advice first I didn't want to open up the dash and start poking around. Any help would be great!
Posted
MOTY 2013
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
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My wiring diagrams and other documents have moved here:
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Posted
Settled In
Once you have ensured a good earth it is then up to identifying the faulty item - I'm guessing the sender is the cheapest thing to try first.
Posted
Old Timer
Not sure about the clock. I think it just needs a regulated feed and an earth. May be a 12v feed though. (Not very helpful!)
Just trace the wires on the circuit board on the instrument panel.
I think it is safe to assume that your sender is not at fault, however, you can test it by putting it in a pot of water on the hob, measuring the temperature, and testing the resistance. It should be about 150 ohms at about 90*, around 270 ohms when the water is at room temperature.
I found a useful page in my Haynes, I'll post it if you want. It pretty much just covers what has been discussed though.
Posted
Newbie
If you are convinced it is not the sender, I would try changing the voltage regulator on the back of the clocks. Could explain why your clock doesn't work either.
Posted
Settling In
I had a look at the fusebox and there was a slight difference to the labelled diagram I was looking at.
This is the diagram I've been looking at: http://ww2.justanswer.com/uploads/EU/eurotec/2013-01-11_215925_90-93fusepanel.png
And this is my fuse box
As you can see slot 5 is missing a 15amp and 12 has a 15amp where the diagram says open. I don't think I'm having problems with the fuel pump or heated oxygen sensor but then again I don't really know what they are . I didn't to swap them over incase it was damage something. The more I think about that now the more stupid it sounds lol. Electrics really aren't my forte. But perhaps this could be related to the lcd clock? The clock is labelled as 3 but the interior light, radio and cig. lighter all work perfectly.
Could someone send me a link for a decent temp sender? Are the ebay ones any good? If I haven't mentioned already it's a 1.8 1991 cabriolet.
I'll try and get the clocks out next weekend if I get the time. Thanks again for the advice. Can't wait to sort this out. It's unearving not knowing the temperature of the engine!
Here's my car with my old man's Triumph. Shiny
Posted
Settling In
Posted
MOTY 2013
yeah that one in the link is correct for the later cars with 2 pin coolant temp sender
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
Posted
Settling In
I'm having difficulties getting the clocked out. I've got all the switches and screws ff and its so almost free but its stuck somewhere above the casing for the radio. Probably something really simply but I've tried everything I can without forcing it past breaking point.
Can you tell me where the earth from the sender goes to?
Thanks a lot
Posted
MOTY 2013
sender earth taps into the engien loom somewhere, if you suspect it then splice another earth into it to the head or battery -ve
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
Posted
Settled In
Never overheats as fan cuts in.
But if i apply an 80ohm resistance to substitute the sendor it reads midway - 150ohm it reads low.
So are there different clocks?
Mine an 85 cc with the single temp gauge top middle.
Wiring jedi
Www.jvsautoelectrical.co.uk
Www.jvsautoelectrical.co.uk
Posted
MOTY 2013
for the thermostat check stat housing rad hose, it should stay stone cold till gauge gets to about 1/2 then warm up. if the gauge is always a little high it may be the rad is too small or clogged up inside.
if coolant system is all ok then as long as you know what the 'normal' is for your car you're ok.
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
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