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17-03-2008, 09:42 PM
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#1 | ||
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mezzo forte
Join Date: Dec 2006
Location: Geelong
Posts: 306
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Ok today I was doing a lot of stop-start driving in my au1 forte 4.0 with 153k on the clock, 35degC+ with aircon on full and a coupla passengers worth of weight. Temp gauge was consistently on the 'O' of NORMAL. I stopped the engine, went into a shop and come out 2 mins later. When I started up again the needle flicked straight to max 'H' and the warning light/beep came on. After 5sec of idle it fell back to 'O' again, and all was well. This happened after all stops.
Has this happened to anyone else in the heat? I was told that it is the water ceasing flow that imediately heats up in the engine when turned off, and when engine is turned on again it flows out replaced by the cool radiator water. I'm assuming there is no real problem, just curious as it has never happened before. Also the car seemed a little gutless and tranny was a little whinier than usual, but I'm just assuming that was the heat and high load on the car. Discuss  |
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17-03-2008, 09:44 PM
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FF.Com.Au Hardcore
Join Date: May 2006
Location: Perth, South
Posts: 3,064
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i haven't heard of this problem on an au before, but on a patrol forum i am a member of people have had similar issues with patrols, turn off when hot, then turn back on shortly after and the temp gauge goes straight to hot, then back to normal.....i would think it is just caused by the hot coolant sitting there with no way to cool it down, then as you said, when it's flowing again it goes back to normal
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17-03-2008, 09:45 PM
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#3 | ||
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White Car Driver
Join Date: Sep 2006
Location: Melbourne
Posts: 1,174
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Yeah my car does it, heat soak I think it's called, it is normal.
__________________
OzECruisers - The Ford EA-EL, NA-NL, DA-DL & XG-XH Owners Club |
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17-03-2008, 09:52 PM
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#4 | ||
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Regular Member
Join Date: Dec 2006
Posts: 107
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yup happens right here on a constant basis.
I have no clue what it is, but I got used to it. Because I do alot of stop start driving too. |
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17-03-2008, 10:02 PM
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#5 | ||
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mezzo forte
Join Date: Dec 2006
Location: Geelong
Posts: 306
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Sweet, thought so. Ta fellas.
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18-03-2008, 08:10 AM
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#6 | ||
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Sales Representative
Join Date: Mar 2007
Location: Young
Posts: 5,314
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Not an issue mate... unless it stay's at that higher temp...
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Project InfernoSR - Back Burner Project FeralTerra - No longer Project Fairmont Prodigy - Sold Thanks go to: MY WIFE! Bathurst Brakepro Undacar eBay!! |
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19-03-2008, 12:27 PM
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#7 | ||
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Moderator
  
Join Date: Feb 2005
Location: Kenthurst
Posts: 40,403
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Yeah I get it on the odd occasion after stopping (after loaded up driving in the heat in traffic) ... just a case of heat soak. The water pump stops when engine is off ... and the temperature sensor in the back of head just reads the heat from the back of head which is the hottest part of the engine bay literally.
Once the car starts and coolant flows is comes back down to normal. A Blueprint said though ... if it stays up in the H range ... you have problems.
__________________
The Current Stable 2016 SZII TS Territory RWD Petrol The Evolution of the EGA54D utes AU Workshop Build thread of EGA54D B-Series Workshop Build thread of EGA54D 2004 SX TX Territory AWD - Gone but not forgotten 2010 FG XT "The ex-rental" - Moved onto a new home Mechan1k's Flickr Page |
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19-03-2008, 11:23 PM
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#8 | ||
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Boost Addict
Join Date: Jan 2005
Location: North Brisbane
Posts: 1,151
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two areas i would look at:
faulty WTS or bad earth (temp gauge is earths through resistance in sensor)
__________________
N12 Pulsar - sold Gen1 Liberty Turbo - sold VP Commodore Turbo - sold LN65 Hilux Turbo - sold EL31 Corolla Turbo - sold Ford AU Ute Turbo - sold Ford AU XR8 Sedan - 5.4l V8 Turbo (in the build) Ford BA XR6T Ute - daily driver Ford FG XR6T Sedan - cruiser do you see a general trend? I DO  Can't live with it, can't live without it! |
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17-03-2008, 10:24 PM
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#9 | ||
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FF.Com.Au Hardcore
Join Date: Feb 2005
Location: Melb north
Posts: 12,025
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never had that problem, when its stone cold have a look and see if the water level has moved from normal position, if it has it might be time for cooling system check.
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Temp gauge phenomenon
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