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Title: £1000+ of work and STILL a bad misfire! Post by BrianT on Oct 1st, 2007, 4:57pm Some of you may remember my posting about the death rattle on my 1996 Ultima 2.3 estate, a few weeks back. Turned out to ne a busted water pump and total coolant loss, with subsequent massive overheating (which strangely didn't seem to show on the dash gauge). Anyway, new water pump, radiator and hoses later, costing £500, all should be well. Not so. The car quickly developed an appalling misfire. Took it back to local garage. They examined it, found poor compression on 2 cylinders. Head gasket was broken. Head off, and sure enough, shredded gasket. Ended up needing head and block machining, new coil packs and HT leads, plugs and various other bits and bobs. Paying for it tonight, but expecting about £500 again! Thing is, the misfire is still there, and the car is almost undriveable. The compression is now OK, so they sorted a problem, but they reckon the misfire is now due to cracked wiring in the loom and will be uneconomical to replace, given that the car is not worth that much anyway. So looks like I've just spent £1000 or more for nothing! I hasten to add that I've always used this garage and they are honest and reliable. They did almost persuade me not to have the work done in the first place, but I reckoned it was worth it if it made everything work. I know misfires can be due to all sorts, but I really can't afford to chuck hundreds more at it. :-/ :'( :'( |
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Title: Re: £1000+ of work and STILL a bad misfire! Post by pedropedro on Oct 1st, 2007, 6:30pm not much consolation I know but I had exactly the same thing happen to me with my scorpio..water pump failed ,new head gasket etc spent £1000 and ended up with a car misfiring /spluttering ..I suspected they put timing chain on slightly wrong ..it showed no codes...it was perfect before the pump failed...maybe the wiring loom got disturbed when they stripped it ..ive looked at but seems ok ended up keeping it as a spare and got another one. Lesson for me is if head gasket goes dont spend money having reworked. |
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Title: Re: £1000+ of work and STILL a bad misfire! Post by Matt on Oct 1st, 2007, 7:27pm before you get the head machined, check that it hasnt cracked, the 2.3 is prone to it when it over heats, it goes on the inlet side between cyls 2 and 3 |
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Title: Re: £1000+ of work and STILL a bad misfire! Post by BrianT on Oct 1st, 2007, 11:44pm Head's already been machined. Compression test shows perfect compression, so doubt it's cracked. They're going to have another look at it at the weekend. Convinced it's an electrical problem caused by disturbing the old wiring during strip-down. |
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Title: Re: £1000+ of work and STILL a bad misfire! Post by Tompion on Oct 2nd, 2007, 12:12am Have you looked here: http://www.fordscorpio.co.uk/dohcloom.htm Check the wiring under the cylinder head cover. Make sure it hasn’t been trapped by the cover where it enters. Peal back the outer insulation and check the wires they can be in a really bad way. |
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Title: Re: £1000+ of work and STILL a bad misfire! Post by BrianT on Oct 3rd, 2007, 9:18am I think that's the nub of the problem. The garage are saying it will mean a new loom to properly sort it, which will be expensive. I've told them I'm reluctant to chuck more money at it, unless it's a modest sum. |
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Title: Re: £1000+ of work and STILL a bad misfire! Post by jonnycab on Oct 3rd, 2007, 9:46am You might get a new loom from a Ford dealer. Ford don't make them anymore but there must be a few hanging about on shelves. Think they're about £75 :) |
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Title: Re: £1000+ of work and STILL a bad misfire! Post by Alastair on Oct 3rd, 2007, 10:19am Brian Check or have an auto electrician check the wiring between the EDIS (hidden under the washer tank front offside wing) and the ECU (under glove box). There are 11 wires and the likely culprit could be the balck and white - goes to and controls the voltage to the fuel pump Seems a pity to replace the loom if only one wire needs replaced. This was the case in my car earlier this year at the end of a very long saga. Alastair |
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Title: Re: £1000+ of work and STILL a bad misfire! Post by Tompion on Oct 3rd, 2007, 10:34am on 10/03/07 at 09:46:46, jonnycab wrote:
I've just emailed Trevor at www.fordpartsuk.com to confirm it's not available - let you know what he says. Alastair, don't think that's part of this loom (not that it rules it out as a possible problem) |
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Title: Re: £1000+ of work and STILL a bad misfire! Post by BrianT on Oct 3rd, 2007, 3:06pm Thanks for the help guys. I'll show these replies to Michael at my local garage when I take the car back on Friday. |
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Title: Re: £1000+ of work and STILL a bad misfire! Post by Tompion on Oct 3rd, 2007, 6:45pm My query & Trevor’s reply below, not looking good (the price mentioned is what I paid about 18 months ago) If you want to email your Vin to him it’s: t.porterATshaw.ca (change the AT to @) Hi Trevor Sorry to trouble you, Could you please check if the loom detailed below is still available as someone posted on the scorpio site that it is no longer available. If it is still available could you give me a quote and I'll post it to the site. Is it the same loom for the 2.0 variants? ============================ Scorpio 2.3DOHC-Fuel Shut Off Loom Part Number: 1063559 Retail Price: £92.28 You Pay: £78.44 Postage & Packing Parcel Force UK 2Day Service £5.00 Prices subject to VAT @ 17.5% Total Cost: £98.04 ====================== Hi David 1063559 is showing as 'referred' at Ford This does in general means that there is no stock at present and the part may be made obsolete There are a couple showing on the european dealer files that i could probably get. I would need the VIN number of the 2.0 to confirm if the same loom is fitted Regards Trevor www.fordpartsuk.com |
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Title: Re: £1000+ of work and STILL a bad misfire! Post by jonnycab on Oct 4th, 2007, 2:46am Brian T....if it's just the part of the loom that is under the engine cover that is shot, then you can replace the wiring DIY style without too much difficulty.......cut out old wire, replace with new wire :) Not sure of the amperage rating of the original wiring, but it's pretty thin....so not too high I wouldn't have thought :) A small reel of 15 amp wire (£3.50ish from motor factors) should suffice. Also, you'll need some shrink wrap tubing (couple of quid a metre from motor factors). And if you can't find any original spec plastic armour surround, then some foil lagging tape (to deflect the heat) will finish it off nicely ;) Hope this helps :) |
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