Paul_J
Member
Registered: 6th Jun 02
Location: London
User status: Offline
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How much damage can a mis fire do to your car?
Since I got my car back from garage, it's started mis firing badly, and it sounds like a scooby... like it's only firing on 2 or 3 cylinders or something.
I'm not driving it ,but when we need to start it to test it, I'm worried I'm doing damage. What's the worse a mis fire could do? I have no cat so no worries about melting that.
I won't put a hole in my piston or anything from incorrect fueling will I?
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ed
Member
Registered: 10th Sep 03
User status: Offline
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Depends whats causing it and if it's pinking or misfiring...
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Greasemonkey
Member
Registered: 17th Apr 02
Location: Drives a Tractor
User status: Offline
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If its major overfueling causing the misfire you can get bore wash which takes the lubricating properties of oil away from your cylinder bores and they might wear quick, this takes place over a long period of time though
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AK
Member
Registered: 5th Jul 00
Location: Aberdeen City
User status: Offline
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misfire at idle wont cause any real harm.
its prob just plugs or lead related
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Jambo
Member
Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
User status: Offline
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plug gaps?
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Paul_J
Member
Registered: 6th Jun 02
Location: London
User status: Offline
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what I don't understand then is why was the car 100% fine, then handed it to them for a gearbox fitting, then now it's doing this, if it was related to plug gaps or something?
surely it's a elecrtical fault / sensor been moved / disconected or earth been moved / disconected when the gearbox was out.
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corsakid2007
Member
Registered: 20th Jun 07
User status: Offline
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i have recently brought an R reg corsa sport 1.4i 16v and have the same trouble misfiring at idle have changed sparks,leads had new lamber sensor ... was adviced by a mobile tune up guy it was a sticky lifter so used engine flush and changed oil still there ........ was adviced due to it drinkin fuel while idling it may be a jacked valve but surely power would be low in 3rd 4th and 5th( which isnt the case.... !) oh and rev counter is searching up down little movements while idling any help much appreiciated.
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