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S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004. |
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Miisfire helpViews : 777 Replies : 5Users Viewing This Thread : |
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Dec 1st, 2007, 22:23 | #1 |
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Miisfire help
Ive looked at all the old treads and none quite gave me the answer so i hope some one can help.
I have a 98 T4 and i get a missfire/ jurcking at low rpm more when hot and tonite when i whent out in it to drop the wife in town i gave it a boot down the bypass and it spluttered all the way up the rev range. ive had the plugs out and they look quite new i cleaned them and re gap,d them hoping that would work but its still like it. i run it on V max fuel so its not fuel. Plugs or coils ant ides please??? |
Dec 2nd, 2007, 10:18 | #2 |
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Last Online: Sep 18th, 2013 21:02
Join Date: Jan 2007
Location: loughborough
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hi, i have a 2.0 turbo and mine does the same thing, not often, only 3 times in the past year, mine seems to be a fuel thing, i have to pull over and give it some revs untill it seems to clear a blockage then its alright!!!, ive read somewhere on here that changing the fuel filter will help, cheap fix as well,the m.o.t's due jan 5th so i'll have a full service with a filter change and see how we get on, hope yours is something as simple as changing the fuel filter, good luck
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Dec 2nd, 2007, 14:36 | #3 |
Junior Member
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Have you checked the leads? Also, I hear there is some vac pipes that deteriorate and leak, causing the misfire due to incorrect fuel mixture. Also, check the MAF unit.
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Dec 2nd, 2007, 21:44 | #4 |
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I will change the fuel filter and plugs and keep my fingers crossed thats all it is. Its only just had a MAF fitted just before i bought it so prob not that. i will also have a look around at them vac pipes.
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Dec 3rd, 2007, 21:08 | #5 |
New Member
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Fitted a set of iridium plgs and a pair of genuine coils.. Ita running like a dream the bests its ever been so happy ive sorted it.
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Dec 3rd, 2007, 21:50 | #6 |
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Last Online: Yesterday 18:12
Join Date: Dec 2002
Location: Co. Limerick, Ireland
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Don't wish to keep advising you to buy OEM parts but for the T4 you may find in a few weeks that you'll have to change those iridium plugs for genuine ones. The T4 engine is a tad fussy and tends to misbehave on non Volvo parts.
How much did the coil packs set you back?
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Liam... '96 854 TDI SE, '99 V70 2.5D S, '05 C70 2.0T Collection, '05 S80 2.0T SE, '15 V70 D4 SE Lux Nav. |
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