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Topic: Troubles with my Cossie (Read 1469 times) |
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Danny
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Posts: 242
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Troubles with my Cossie
« on: Sep 10th, 2007, 9:14am » |
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Hi All
My problem developed on Friday, the car seemed to be running fine as normal but after about half hour of driving the temp seems to suddenly drop to cold then rise to normal again and this goes on for a few mins. It will return to normal for a little while then it will start moving up and down again.
Any ideas, I have checked the water levels (no problems), also checked to see if the MAF sensor was dirty. My next idea would be to change the thermostat, but dont want to spend money and time if this is not the problem.
Cheers
Dan
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ex 1996 24v Cosworth
Now - Mondeo ST TDCI (Sat Nav Built-in/Bluetooth/Voice Control/Xenons/DeCat/Bluefin Remap @ 190bhp)
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: Troubles with my Cossie
« Reply #1 on: Sep 10th, 2007, 9:49am » |
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Could be a faulty temp guage sender 
If it were the thermostat then the temp would tend to drop when on a fast run & return to normal when driving around town
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Danny
Full Member
Posts: 242
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Re: Troubles with my Cossie
« Reply #2 on: Sep 10th, 2007, 9:52am » |
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Cheers johnny, do you know where I can find the temp gauge sender.
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ex 1996 24v Cosworth
Now - Mondeo ST TDCI (Sat Nav Built-in/Bluetooth/Voice Control/Xenons/DeCat/Bluefin Remap @ 190bhp)
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: Troubles with my Cossie
« Reply #3 on: Sep 10th, 2007, 9:54am » |
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Sorry, can't help you on that front, I'm just a lowly 2.3 owner  ...... 
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Danny
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Posts: 242
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Re: Troubles with my Cossie
« Reply #4 on: Sep 10th, 2007, 10:09am » |
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Thanks anyway johnny, would never have thought of that anyway. I am currently searching though the forums to try and find some more information
Thanks for your help
Dan
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ex 1996 24v Cosworth
Now - Mondeo ST TDCI (Sat Nav Built-in/Bluetooth/Voice Control/Xenons/DeCat/Bluefin Remap @ 190bhp)
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: Troubles with my Cossie
« Reply #5 on: Sep 10th, 2007, 10:19am » |
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This may help.....
http://www.fordscorpio.co.uk/24vcomponents.htm
It may be next to the ECT sensor (round multiplug) & should have a squarish multiplug.....it is on the 2.3 anyway 
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Highlander
Moderator
Expert
13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
Posts: 8244
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Re: Troubles with my Cossie
« Reply #6 on: Sep 10th, 2007, 11:16am » |
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Here it is Dan, diagram 11
http://www.fordscorpio.co.uk/manual/engines/24v/24VDismantle.pdf
I've had two do the exact same thing, gauge dropping to zero then back up to half way every now and again, no problems with thermostat or cooling system, its the sender unit or the wiring..
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on Oct 17th, 2011, 12:35pm, Simmo wrote:I give up ! Too much for an old boy!  |
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Danny
Full Member
Posts: 242
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Re: Troubles with my Cossie
« Reply #7 on: Sep 10th, 2007, 11:28am » |
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Cheers Highlander, do you know how much the sensor costs?
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ex 1996 24v Cosworth
Now - Mondeo ST TDCI (Sat Nav Built-in/Bluetooth/Voice Control/Xenons/DeCat/Bluefin Remap @ 190bhp)
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Dave
Senior Member
Tourmallard 24v (ex-owner)
Posts: 1984
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Re: Troubles with my Cossie
« Reply #8 on: Sep 10th, 2007, 11:50am » |
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I had a similar problem and the cause was the small sender with 1 wire going to it, located just near the larger one with 2 wires going to it.
The sender had been knocked during some work and was physically broken.
Try moving the sender to check for play with the electrics on, see if the guage moves.
The smaller one is about £4 and is IIRC fairly standard across the Granada/Scorpio/Sierra range.
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Life after the Scorpio ain't easy..
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Danny
Full Member
Posts: 242
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Re: Troubles with my Cossie
« Reply #9 on: Sep 10th, 2007, 11:55am » |
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Thanks Dave, Will have a look tonight to see if there is any lose wires. The road I use to get home is very bumpy and could be what has cause it.
Cheers
Dan
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ex 1996 24v Cosworth
Now - Mondeo ST TDCI (Sat Nav Built-in/Bluetooth/Voice Control/Xenons/DeCat/Bluefin Remap @ 190bhp)
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Highlander
Moderator
Expert
13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
Posts: 8244
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Re: Troubles with my Cossie
« Reply #10 on: Sep 11th, 2007, 7:18am » |
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Or just old age (the car that is, not you)
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on Oct 17th, 2011, 12:35pm, Simmo wrote:| I give up ! Too much for an old boy! |
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pappa
Full Member
VM Diesel 2.5Tdi 90kW
Posts: 259
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Re: Troubles with my Cossie
« Reply #11 on: Sep 12th, 2007, 7:06am » |
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Hi there!
You can rule out the wiring problem and the possible instrument panel temp cauge malfunction
like this:
-Take out the lead that goes into the sensor
-put a short lead into the sensor plug and ground it
-Turn on the ignition
The temp needle should go all the way to red = wiring and instrument
panel are -OK- buy and install new temp sender. They're known
to go bad when they grow older
I Have changed sensors into the Granny and into the Froggy Cossie.
In the Granny the needle sstops reaching the normal level and
stays down or may even stop moving at all.
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My cars are the best and the pigs and cows fly.
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Danny
Full Member
Posts: 242
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Re: Troubles with my Cossie
« Reply #12 on: Sep 12th, 2007, 8:59am » |
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Cheers puppa, I am planning to buy a replacment sensor anyway, do you have to ford part number for the sensor as from experience with fords they tend to get most items wrong from their supplier, or maybe that just was the place I use to get my scorpio bits from.
Cheers
Dan
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ex 1996 24v Cosworth
Now - Mondeo ST TDCI (Sat Nav Built-in/Bluetooth/Voice Control/Xenons/DeCat/Bluefin Remap @ 190bhp)
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Danny
Full Member
Posts: 242
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Re: Troubles with my Cossie
« Reply #13 on: Sep 22nd, 2007, 9:50am » |
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Right I have replaced the temp sender (could only get the part from unipart as fords no longer produce that part).
While down there I was checking the ECT Sensor and noticed that plug itself was broken, and casing around the wires has gone while the 2 wires are wrapped around each other.
My now seems to be, after about 15 secs after I have started the car, its fans come on and stay on even while the engine is warming up.
Any ideas
Cheers
Dan
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ex 1996 24v Cosworth
Now - Mondeo ST TDCI (Sat Nav Built-in/Bluetooth/Voice Control/Xenons/DeCat/Bluefin Remap @ 190bhp)
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scorpio_man
Administrator
Ford Kuga awd
Posts: 5654
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Re: Troubles with my Cossie
« Reply #14 on: Sep 22nd, 2007, 10:01am » |
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on Sep 22nd, 2007, 9:50am, drawlings wrote:
My now seems to be, after about 15 secs after I have started the car, its fans come on and stay on even while the engine is warming up.
Any ideas
Cheers
Dan |
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if the a/c is on, then this is fine for the fans to be on slow mode. they will cycle on and off with the compressor.
hth
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Danny
Full Member
Posts: 242
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Re: Troubles with my Cossie
« Reply #15 on: Sep 22nd, 2007, 10:02am » |
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Hi mate, I dont have any of the climate control on and the fans seem to be running at a high speed. Although the temp seems to ok
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ex 1996 24v Cosworth
Now - Mondeo ST TDCI (Sat Nav Built-in/Bluetooth/Voice Control/Xenons/DeCat/Bluefin Remap @ 190bhp)
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scorpio_man
Administrator
Ford Kuga awd
Posts: 5654
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Re: Troubles with my Cossie
« Reply #16 on: Sep 22nd, 2007, 10:05am » |
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hi there
sound like you still have a small wiring issue still. 
have you looked under the front x panel where the loom goes to the other side of the engine bay?
hth
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Danny
Full Member
Posts: 242
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Re: Troubles with my Cossie
« Reply #17 on: Sep 22nd, 2007, 10:10am » |
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To be honest none of the wiring looks that great. But I will check it now.
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ex 1996 24v Cosworth
Now - Mondeo ST TDCI (Sat Nav Built-in/Bluetooth/Voice Control/Xenons/DeCat/Bluefin Remap @ 190bhp)
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Danny
Full Member
Posts: 242
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Re: Troubles with my Cossie
« Reply #18 on: Sep 22nd, 2007, 10:19am » |
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The wiring looks ok for its age but could do with re-casing
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ex 1996 24v Cosworth
Now - Mondeo ST TDCI (Sat Nav Built-in/Bluetooth/Voice Control/Xenons/DeCat/Bluefin Remap @ 190bhp)
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Neil W
Full Member
Posts: 148
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Re: Troubles with my Cossie
« Reply #19 on: Sep 22nd, 2007, 1:37pm » |
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You asked for part numbers and prices; I have had no problem getting the following for my 1998 Cosworth this year from either Ford Parts UK or my local main dealer.
Temp sender (to gauge) FINIS 7171007 £6.50
Temp sensor (2 wires) FINIS 6810428 £15.00
Thermostat (connector) FINIS 7334678 £39.54
Fans relay (green) FINIS 1030495 £36.80
The temperature sensor and sender are both at the front of the engine under the "Cosworth" cover and in the centre of the "Vee".
You might need some or all of these parts to solve your problem, apart from any other diagnosis someone on this forum comes up with.
Hope this helps.
Neil W.
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1998 Scorpio Ultima Cosworth facelift saloon, reg S896VOG. Sold Feb 2010. Now own Mercedes-Benz E320 CDi.
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