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01-12-2011, 02:11 AM
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The Mayor
Join Date: Mar 2009
Location: Perth WA
Posts: 29
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As the title says, my speedo has a tendency to fluctuate when the car is cold under light throttle, but once it warms up it works fine again, I have already replaced the speedo sender unit and serviced the transmission and it still does it, the car is an AUII forte with auto trans
Any thoughts or suggestions would be greatly appeciated.
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"A man is basically as faithful as his options" - Chris Rock |
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02-12-2011, 12:53 AM
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Bugger!
Join Date: Jul 2011
Location: Albany, WA
Posts: 3,307
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That's an odd one!
Have you tried the engine and gearbox earths? Perhaps they are a bit loose and make contact when the metal expands?
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Whoops, there goes another factory setup! Chop and change - butchering cars since 1990 
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02-12-2011, 01:18 AM
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#3 | ||
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Miami Pilot
 
Join Date: Jan 2005
Location: ACT
Posts: 21,700
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Spray the inhibitor switch on the side of the gearbox with WD40 or equivalent.
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02-12-2011, 10:57 AM
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#4 | ||
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Flairs - Truckers Delight
Join Date: Aug 2006
Location: Brisbane Northside Likes: Opposite Lock
Posts: 5,731
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Do what JC says
when you say speedo sender do you mean transducer? Try an EL transducer, thats what I had to do, I was eating transducers but apparently the EL ones are slightly more hardy in some fashion, if i remember correctly. also check the voltage and health of your alt, they're known to play havoc with guages and what feeds them
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Current: Silhouette Black 2007 SY Ford Territory TX RWD 7-seater "Black Banger"
2006-2016: Regency Red 2000 AUII Ford Falcon Forte Automatic Sedan Tickford LPG "Millennium Falcon" |
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02-12-2011, 01:16 PM
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#5 | ||
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Walking with God
Join Date: Mar 2005
Location: Melbourne
Posts: 7,321
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Inspecting and Cleaning Auto Transmission Connectors
http://www.fordforums.com.au/showpos...0&postcount=86 GK
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2009 Mondeo Zetec TDCi - Moondust Silver 2015 Kia Sorento Platinum - Snow White Pearl 2001 Ducati Monster 900Sie - Red Now gone! 1999 AU1 Futura Wagon - Sparkling Burgundy On LPG Want a Full Life? John 10:10 |
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03-12-2011, 11:56 AM
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#6 | |||
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The Mayor
Join Date: Mar 2009
Location: Perth WA
Posts: 29
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Quote:
An EL transducer? I'll give that a go if all else fails, and the alternator has been replaced with a brand new unit last week as the old one was on the blink so it can't be that. Looks like I'll be looking into the inhibitor switch and earths then, cheers fellas
__________________
"A man is basically as faithful as his options" - Chris Rock |
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05-12-2011, 11:49 AM
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#7 | ||
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Flairs - Truckers Delight
Join Date: Aug 2006
Location: Brisbane Northside Likes: Opposite Lock
Posts: 5,731
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aha i knew it'd have to do with your alt in some way
it seems that sometimes when your alt is on its way out it likes to annoy your transducer so i'd say the damage has already been done, getting a new transducer is possibly the way to fix it once and for all
__________________
Current: Silhouette Black 2007 SY Ford Territory TX RWD 7-seater "Black Banger"
2006-2016: Regency Red 2000 AUII Ford Falcon Forte Automatic Sedan Tickford LPG "Millennium Falcon" |
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06-12-2011, 01:11 AM
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#8 | ||
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Bugger!
Join Date: Jul 2011
Location: Albany, WA
Posts: 3,307
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Mate there's a spare transducer at my house; you're welcome to try it if you like, since you're in Perth.....i
__________________
Whoops, there goes another factory setup! Chop and change - butchering cars since 1990
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14-12-2011, 12:52 AM
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#9 | ||
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The Mayor
Join Date: Mar 2009
Location: Perth WA
Posts: 29
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Well it's still doing it, looks like I'll be hunting down a replacement transducer during my holidays
__________________
"A man is basically as faithful as his options" - Chris Rock |
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Speedo fluctuates when car is cold
Linear Mode
