16-01-2009, 08:48
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#1
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cf.geek
Join Date: Mar 2007
Posts: 596
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Sluggish Car
Hi
When I started my car this morning the engine seemed to have to struggle to idle. I noticed when driving that my fuel economy was a lot lower than what I normally achieve; the engine seemed to need to have higher revs for the speed I was travelling at. When I parked up there was a strong smell in the car
I topped up with petrol yesterday - is it possible that this could be the source of the problem?
Cheers
Chris
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16-01-2009, 09:02
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#2
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Cable Forum Team
Join Date: Dec 2007
Age: 43
Posts: 16,277
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Re: Sluggish Car
If you can smell petrol then there's either too strong a mix going through or one of the spark plugs has gone down...or could very simply be a case bad petrol...
The mixture is done via the closed Lamda loop in a fuel injected car, if one of the components goes down then it'll screw up the mixture...though something as simple as a clogged air filter can do exactly the same thing...
If a plug/lead or cap is breaking down then petrol will be unburnt....Have you had any backfiring??? If not then doubt if it's the plugs and probably to strong a mix...
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16-01-2009, 09:04
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#3
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cf.mega poster
Join Date: Jan 2007
Location: Doncaster, S. Yorks.
Age: 28
Services: TV:Sky+, BB:DRL VDSL2 40/10 with Ask4, Phone:Mobile Only
Posts: 2,227
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Re: Sluggish Car
I doubt just topping up with fuel (unless there was the possibility of it being contaminated) will be the issue.
__________________
"Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." - Albert Einstein
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16-01-2009, 09:15
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#4
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cf.geek
Join Date: Mar 2007
Posts: 596
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Re: Sluggish Car
Ok - thats fine. I have a warranty on the car so I can get it looked at, I just wanted to explore the contaminated fuel route to see if I needed to inform people in the area
Cheers
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16-01-2009, 09:19
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#5
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cf.addict
Join Date: May 2007
Location: Farnborough, Hampshire
Age: 41
Services: BB L package
Posts: 175
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Re: Sluggish Car
Have you checked your handbrake? 
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16-01-2009, 09:21
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#6
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cf.geek
Join Date: Mar 2007
Posts: 596
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Re: Sluggish Car
As it happens - yes
I did notice the other day that my exhaust gave off a large cloud (when I was reversing) - but I haven't noticed it since. I also drove through a thick cloud of exhaust from a land rover last week - it let it off just as I was passing it. It was so bad I had to lower my windows to vent
Last edited by chris9991; 16-01-2009 at 09:59.
Reason: just because
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16-01-2009, 10:44
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#7
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cf.mega poster
Join Date: Oct 2005
Location: Merseyside
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Re: Sluggish Car
Try giving the engine a good old hard rev. Don't hit the red-line obviously, that would cause damage, but a good old rev can often do it a world of good by helping to clear any carbon thats managed to find a place to lodge itself in the engine or injectors.
Failing that, do all the usual tests and changes: Spark plugs, high voltage cables, air filter, fuel filter.
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16-01-2009, 11:54
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#8
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cf.mega poster
Join Date: Jun 2003
Location: Kairdiff-by-the-sea
Age: 56
Services: TVXL BBXL Superhub(wired)
Posts: 3,275
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Re: Sluggish Car
Injector/carburetter cleaner in the petrol is a good idea too... cleans out a lot of fouling gunk.
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