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Topic: temperature indicator jumping down (Read 594 times) |
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temperature indicator jumping down
« on: Jan 27th, 2007, 12:23am » |
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Hi,
my temperature indicator is jumping down once the motor is in normal temperature - I know it sounds funny.  It never goes up though. I have checked water for overpressure / low several times and it doesn't seem to be the issue. Anyone have an idea?
Thanks, Alex
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Spannerdemon
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Re: temperature indicator jumping down
« Reply #1 on: Jan 27th, 2007, 8:17am » |
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This is a known 'fault' with the Scorpios.
See: HERE
Just live with it, or do the repair. Alternatively you could
try the instrument re-set. HERE
Hope this helps you. 
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scorpio_man
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Ford Kuga awd
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Re: temperature indicator jumping down
« Reply #2 on: Jan 27th, 2007, 10:23am » |
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hi there
more often now it's the sensor that's gone. see the replies to this topic.
hth
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Re: temperature indicator jumping down
« Reply #3 on: Mar 4th, 2007, 4:03pm » |
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Hi, it's been a while since but my problem is still there. I had a look at it for 8 weeks now and can't believe this unusual behaviour. Let's start at the beginning, 27/01 - everything was fine till my fiancee had an accident - yeahh, I know, this car is too heavy for girls  . After I found the radiator was leaking, the needle began jumping to zero and back to where it was - after bringing it in Ford charged me 440 EUR to replace it  when picking it up at least it was running but here we go, 4 weeks later the jumping started again - I didn't care till last week - now it even jumps to just under the red and back again, if that is the real temperature then I presume the motor is getting far too hot. I tried the instrument re-set and got the following:
cold - 255
warming up - suddenly needle jumps to middle of normal band, 125
1/2 miles later - needle a bit above middle, 110
full throttle up a hill (min. 1 mile) - 98-102 constantly
after the run @home left in idle - shows 70 as soon as tachometer goes into idle, jumps up to 110, back to 50 and stays at 60-68
if I hit the gas a little same jumps again, stays at 60/68 afterwards
That was my little "test" - hope someone can help identify the issue as I have no clue
ohh - I found that I have air in the basin every 1-2 weeks, when cold I open it and close it again --> fine. The low water LED comes on usually before I just open it to let the air out (I dont need to put water in tho..)
PLEASE HELP!!!
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scorpio_man
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Re: temperature indicator jumping down
« Reply #4 on: Mar 4th, 2007, 4:30pm » |
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hi there
still points to the temp sensor being faulty, imo.
seen it a few times now. easy enough to change.
just remember to leave a small gap when screwing the sensor back into the manifold.
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Re: temperature indicator jumping down
« Reply #5 on: Mar 4th, 2007, 8:16pm » |
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Hey, YAPP I'm a newbie!!
Although the germans designed the car (as far as I know) they do not all know where the temp sensor is...so..how do I replace it? I presume taking the old one out and putting a new one in
Alex
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Re: temperature indicator jumping down
« Reply #6 on: Mar 4th, 2007, 8:19pm » |
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oh just out of interest..does the temp sensor from a 2000 DOHC fit into my cossie? I could get a spare one of those...and I know the Ford dealers around are taking ages to get me parts...
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scorpio_man
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Re: temperature indicator jumping down
« Reply #7 on: Mar 4th, 2007, 8:34pm » |
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hi there
what engine is it?
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Re: temperature indicator jumping down
« Reply #8 on: Mar 4th, 2007, 9:01pm » |
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'96 2.9 24v 
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scorpio_man
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Re: temperature indicator jumping down
« Reply #9 on: Mar 4th, 2007, 9:19pm » |
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hi there
page 9
hth
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Re: temperature indicator jumping down
« Reply #10 on: Mar 4th, 2007, 9:51pm » |
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Thanks very much scorpio_man! will work on this next week and see how it goes. is it correct that I don't need to take the earlier steps as I don't take the cyl heads off? Alex
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