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Title: Troubles with my Cossie Post by drawlings on Sep 10th, 2007, 9:14am 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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Title: Re: Troubles with my Cossie Post by jonnycab on Sep 10th, 2007, 9:49am 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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Title: Re: Troubles with my Cossie Post by drawlings on Sep 10th, 2007, 9:52am Cheers johnny, do you know where I can find the temp gauge sender. |
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Title: Re: Troubles with my Cossie Post by jonnycab on Sep 10th, 2007, 9:54am Sorry, can't help you on that front, I'm just a lowly 2.3 owner ::)...... ;D |
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Title: Re: Troubles with my Cossie Post by drawlings on Sep 10th, 2007, 10:09am 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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Title: Re: Troubles with my Cossie Post by jonnycab on Sep 10th, 2007, 10:19am 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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Title: Re: Troubles with my Cossie Post by Highlander on Sep 10th, 2007, 11:16am 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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Title: Re: Troubles with my Cossie Post by drawlings on Sep 10th, 2007, 11:28am Cheers Highlander, do you know how much the sensor costs? |
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Title: Re: Troubles with my Cossie Post by Dave on Sep 10th, 2007, 11:50am 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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Title: Re: Troubles with my Cossie Post by drawlings on Sep 10th, 2007, 11:55am 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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Title: Re: Troubles with my Cossie Post by Highlander on Sep 11th, 2007, 7:18am Or just old age (the car that is, not you) ;) |
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Title: Re: Troubles with my Cossie Post by pappa on Sep 12th, 2007, 7:06am 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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Title: Re: Troubles with my Cossie Post by drawlings on Sep 12th, 2007, 8:59am 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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Title: Re: Troubles with my Cossie Post by drawlings on Sep 22nd, 2007, 9:50am 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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Title: Re: Troubles with my Cossie Post by scorpio_man on Sep 22nd, 2007, 10:01am on 09/22/07 at 09:50:34, drawlings wrote:
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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Title: Re: Troubles with my Cossie Post by drawlings on Sep 22nd, 2007, 10:02am 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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Title: Re: Troubles with my Cossie Post by scorpio_man on Sep 22nd, 2007, 10:05am 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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Title: Re: Troubles with my Cossie Post by drawlings on Sep 22nd, 2007, 10:10am To be honest none of the wiring looks that great. But I will check it now. |
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Title: Re: Troubles with my Cossie Post by drawlings on Sep 22nd, 2007, 10:19am The wiring looks ok for its age but could do with re-casing |
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Title: Re: Troubles with my Cossie Post by Neil W on Sep 22nd, 2007, 1:37pm 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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Title: Re: Troubles with my Cossie Post by drawlings on Sep 22nd, 2007, 6:17pm Thanks Neil for that infomation. I know have a even bigger problem. Today I only changed the temp sender. I have the ECT sensor but I dont have a socket big enough to change it. I did take off the connector which has seen better days (cable tied on). Anyway, after I changed the temp sender, i started the car. It ran fine for about half hour, so I switched off. Came back half hour later as I was going out for the day and it started but did not feel right, put the car in reverse it then just died. Started it again the car would barely move without jumping around. Finally got it moving and I could not it over 2mph. I also noticed what looked like oil coming from exhaust. Please any ideas and its driving me nuts cheers Dan |
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Title: Re: Troubles with my Cossie Post by Neil W on Sep 22nd, 2007, 7:20pm Oh dear! Have you tried looking at the diagnostics on this site. Try http://www.fordscorpio.co.uk/faultfinds.htm Cheers, Neil W. |
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Title: Re: Troubles with my Cossie Post by Highlander on Sep 22nd, 2007, 8:01pm Oil from the exhaust sounds like a head gasket or piston rings :-/ check the oil and water levels and have a look for signs of one in the other |
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Title: Re: Troubles with my Cossie Post by drawlings on Sep 23rd, 2007, 8:03am Cheers Highlander, I dont think its the head gasket yet. The car was fine until I changed the temp sender. I am going to put the old sender back in today and see if it has fixed my problem cheers Dan |
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Title: Re: Troubles with my Cossie Post by drawlings on Sep 23rd, 2007, 9:59am I am now getting annoyed, the cossie wont even start. oil levels are ok and water is fine. But I did notice that the temp guage is now set at full If the ECT Sensor is pretty knacked, could this cause the problems I am having? |
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Title: Re: Troubles with my Cossie Post by tintin on Sep 23rd, 2007, 10:14am by oil, did you mean white smoke or actual oil? my cossie started running rubbish and lots of white smoke, was a spark plug blown. sounds like some wiring has been disturbed whilst in and around the engine, maybe lost spark somewhere? hth, |
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Title: Re: Troubles with my Cossie Post by drawlings on Sep 23rd, 2007, 10:18am No there was no smoke, when running it sound like it was choaking rather than running smooth. I keep checking the wiring but nothing is differnent from before |
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Title: Re: Troubles with my Cossie Post by Highlander on Sep 23rd, 2007, 10:33am Was there oil dripping out the exhaust or blue smoke?? |
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Title: Re: Troubles with my Cossie Post by drawlings on Sep 23rd, 2007, 10:36am The was no obvious smoke other than exhaust fumes. The oil was a tiny amount |
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Title: Re: Troubles with my Cossie Post by drawlings on Sep 23rd, 2007, 3:15pm Ok a update. I have got the car started, I have done a bit a bodge job on the wires by the temp sender and managed to get the car started. Looking at the rest of the wiring I think its going to be one of days where I am going to have to strip and re-cover the loom becuase the car will idle ok but the second I try to drive it, it will splutter and then stall. Where is the best place to get the repair material for the wiring? i.e. heat protector casing and wire insulation tape? Cheers Dan |
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Title: Re: Troubles with my Cossie Post by jonnycab on Sep 23rd, 2007, 3:37pm Sorry, I haven't read this post for a while & not sure if you sorted this :) Going back to the fans coming on after 15 seconds...this is most likely due to the ECT. If the ECT wires are disconnected from the ECT (plug pulled off or broken wire) then the fans will run at full speed regardless :) |
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Title: Re: Troubles with my Cossie Post by drawlings on Sep 23rd, 2007, 3:46pm Sorry Johnny I forgot to mention in the last post, where I bodged the wiring temperaly with standard insulation tape, it seemed to fix my problem. But from the way the car is running I know there is something else wrong with the wiring. I will try and take a pic and post on here |
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Title: Re: Troubles with my Cossie Post by Dave on Sep 23rd, 2007, 3:47pm Sounds like a similar problem to one I had a couple of years ago. I took the inlet manifolds off, managed to wrap each wire individually as neccessary (with insulation tape) as it was badly cracked in some places. What was actually stopping the car running was the 2 wires that go to the crank sensor (at the bottom of the engine) were touching as the insulation had gone. I reinsulated these and the car fired up. In your case I would also pay attention to the 4 wires that go to the plug that plugs into the coil pack (DIS). Cheers :) |
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