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Location: Brisbane
Registered: March 2003
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1jz - Looking for simple answer
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Wed, 20 April 2005 03:32
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Hi guys.
I hope someone has a simple answer to this problem.
My brother just got a 1994 TT Soarer. Now after a nice cruise, he'll pull into the driveway, go over a dip (not sure if this is part of the problem) and then the temp guage will jump from 1/2 (where it should be) up to full and make warning beeping noises. Then all of a sudden, it will drop back down to half. Sometimes it stays up on full for a while.
My brother was concerned that his car was overheating but I assumed it may just be a faulty temperature sensor or wiring for the the sensor as I didn't think it possible for a car to increase its heat this fast while at about 1000rpm pulling into a carpark. It has all new fluids.
Does this sound right or should he have the car looked at?
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Location: Brisbane, Queensland
Registered: January 2004
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Re: 1jz - Looking for simple answer
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Wed, 20 April 2005 03:34

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Check the wire going to the water temp sensor, it maybe loose.
This happened on my car, the wire was loose (actually broke off when i was looking at it) and my temp gauge was all over the shop.
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Location: Central Coast, NSW
Registered: May 2002
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Re: 1jz - Looking for simple answer
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Wed, 20 April 2005 04:18

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Could also be an air bubble floating around in the cooling system. I suggest "burping" the car by parking it facing upwards on a hill and flushing the system out, then refilling with coolant
Dan
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Location: south east - melbourne
Registered: March 2004
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Re: 1jz - Looking for simple answer
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Wed, 20 April 2005 04:54

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might help replacing the thermostat too while ur flushin the system
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Location: sydney
Registered: March 2003
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Re: 1jz - Looking for simple answer
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Wed, 20 April 2005 05:32
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its a bad earth for the temp gauge
if the temp sender is connected but the earth for the gauge isnt
then the gauge will read hi
no amount of air pocket will make the temp jump so hi
i have fix probs like this before and its a bad earth for the temp gauge
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