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EL Falcon idling like **** and missing dual fuel 

 

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 Post subject: EL Falcon idling like **** and missing dual fuel
Posted: Thu Jul 09, 2009 2:30 am 
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Hey guys.

i was having trouble with my EL falcon. it seems to be idling very very rough and it shivers and it is missing aswell.

a week earlier it died on me and i had the distributor changed. and the coils.

it went away for a while then came back,

i have checked in the dark i have read the subject up a fair bit its sparks arent arcing in the dark. i was looking for some help on the topic. its been doing this for ages and ive been told its no big problem but its getting really really annoying! and i really want to get rid of it.

thanks in advance guys.

oh by the way guys its a duel fuel model and on rough idle sometimes the whole car shivers and shakes like crazy...

some say its the converter thats gone dirty on the inside and needs a good clean.
some say that i should change the sparks and the leads
some say that i should clean the throttle body

any hints would be great.

cheers guys.
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 Post subject: Re: EL Falcon idling like **** and missing dual fuel
Posted: Thu Jul 09, 2009 10:15 am 
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how does it run on petrol
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 Post subject: Re: EL Falcon idling like **** and missing dual fuel
Posted: Thu Jul 09, 2009 4:23 pm 
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not really idling that bad at change, but still idling pretty bad.. still misses.. same issues but shows a little less signs... im gonna put some injector cleaner in and run it on petrol for a while soon.
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 Post subject: Re: EL Falcon idling like **** and missing dual fuel
Posted: Thu Jul 09, 2009 8:50 pm 
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map sensor? do a resistance check on the leads and wipe out the throttle

 

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 Post subject: Re: EL Falcon idling like **** and missing dual fuel
Posted: Fri Jul 10, 2009 2:08 am 
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Hose to MAF sensor off. More info needed. Does vehicle show same problems on either fuel? If you have changed dizzys, timing could be out badly.
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 Post subject: Re: EL Falcon idling like **** and missing dual fuel
Posted: Fri Jul 10, 2009 8:35 am 
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Sounds like a vacume leak somewere, go crazy with a tin of WD40 while the engine is idleing, if it has a leak the engine will pick up when you spray it (the hole that is)..

 

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 Post subject: Re: EL Falcon idling like **** and missing dual fuel
Posted: Fri Jul 10, 2009 1:57 pm 
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id start by cleaning the throttle body out with carby cleaner and the isc aswell
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 Post subject: Re: EL Falcon idling like **** and missing dual fuel
Posted: Fri Jul 10, 2009 5:33 pm 
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sexyr6 wrote:
Sounds like a vacume leak somewere, go crazy with a tin of WD40 while the engine is idleing, if it has a leak the engine will pick up when you spray it (the hole that is)..


was thinking this on the way to work thismorning. wouldnt explain the weak spark, but check them too

 

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 Post subject: Re: EL Falcon idling like **** and missing dual fuel
Posted: Fri Jul 10, 2009 9:42 pm 
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mate, forget injector cleaner fuel additive/wd-40.. preventative at best. check your plugs..are all completely black and gummed up? even 1?? prob'ly not..
book it in for an off car injector clean, then a service, then a tune up. from a good mechanic. cheap fixes, like wd-40 wont do it. spend the money...if it is a major electrical/computer problem, the diagnostic will pick it up. anything else is a waste of time.
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 Post subject: Re: EL Falcon idling like **** and missing dual fuel
Posted: Fri Jul 10, 2009 10:45 pm 
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he means to use it for checking vac leaks, similar to using butane to find the leak

 

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 Post subject: Re: EL Falcon idling like **** and missing dual fuel
Posted: Sat Jul 11, 2009 12:08 am 
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984.OEL wrote:
mate, forget injector cleaner fuel additive/wd-40.. preventative at best. check your plugs..are all completely black and gummed up? even 1?? prob'ly not..
book it in for an off car injector clean, then a service, then a tune up. from a good mechanic. cheap fixes, like wd-40 wont do it. spend the money...if it is a major electrical/computer problem, the diagnostic will pick it up. anything else is a waste of time.


so you've never tryed to find a vacume leak with WD40??

 

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 Post subject: Re: EL Falcon idling like **** and missing dual fuel
Posted: Sat Jul 11, 2009 12:09 am 
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vac leak wont cause these dramas. not a minor one anyway. a major one, and you got problems! timing, spark or injectors are the obvious solutions, and a diagnostic will pick all of them. spark not likley..new plugs and leads(and timing) should fix that...timing pretty obvious; dissie fixes that.. major misfires are probly injectors. not always, but probly. how many k's?? injectors should be done off-car every 50-60000 k's. i only know this cause i've had similar dramas: mine not missing, but high warm idle and rough throttle, jerky acceleration, esp. under load..my lpg throttle response weakish(even for lpg), but tune sorted that.. petrol; always gonna be stronger, except maybe for lpg injection....trust me; go to a good mechanic and tune properly. theres a reason they charge so much... they know how to do it properly!
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 Post subject: Re: EL Falcon idling like **** and missing dual fuel
Posted: Sat Jul 11, 2009 12:15 am 
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984.OEL wrote:
vac leak wont cause these dramas. not a minor one anyway. a major one, and you got problems! timing, spark or injectors are the obvious solutions, and a diagnostic will pick all of them. spark not likley..new plugs and leads(and timing) should fix that...timing pretty obvious; dissie fixes that.. major misfires are probly injectors. not always, but probly. how many k's?? injectors should be done off-car every 50-60000 k's. i only know this cause i've had similar dramas: mine not missing, but high warm idle and rough throttle, jerky acceleration, esp. under load..my lpg throttle response weakish(even for lpg), but tune sorted that.. petrol; always gonna be stronger, except maybe for lpg injection....trust me; go to a good mechanic and tune properly. theres a reason they charge so much... they know how to do it properly!


I recently had these symptoms with my wagon (duel Fuel) and found a vacume leak a very simple fix.. just thought id give the guy a place to start looking.. insted of have him spend a weeks wages on a machanic to tell him it was (maybe) just a vacume leak..

 

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 Post subject: Re: EL Falcon idling like **** and missing dual fuel
Posted: Sat Jul 11, 2009 12:17 am 
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sexyr6 wrote:
984.OEL wrote:
mate, forget injector cleaner fuel additive/wd-40.. preventative at best. check your plugs..are all completely black and gummed up? even 1?? prob'ly not..
book it in for an off car injector clean, then a service, then a tune up. from a good mechanic. cheap fixes, like wd-40 wont do it. spend the money...if it is a major electrical/computer problem, the diagnostic will pick it up. anything else is a waste of time.


so you've never tryed to find a vacume leak with WD40??

honestly???? no. but i've honestly never had one..
i'm 38; spraying anything on anything other than to lube or to start wet carby makes no sense to me.. pull it off and have a look, or pay someone who can.
do it properly....!
ps if your plugs do look like crap, then it;s time to start taking more care. change your oil! at least!!! that means your filter too. then the plugs.
check your gaskets. sucking too much air thru the wrong place can do bad things..head gasket; you'll miss, AND suck water into cylinders. inlet manifold, and you'll lose pressure....and that could affect VACUUM.

Last edited by 984.OEL on Sat Jul 11, 2009 12:28 am, edited 1 time in total.

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 Post subject: Re: EL Falcon idling like **** and missing dual fuel
Posted: Sat Jul 11, 2009 12:24 am 
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984.OEL wrote:
sexyr6 wrote:
984.OEL wrote:
mate, forget injector cleaner fuel additive/wd-40.. preventative at best. check your plugs..are all completely black and gummed up? even 1?? prob'ly not..
book it in for an off car injector clean, then a service, then a tune up. from a good mechanic. cheap fixes, like wd-40 wont do it. spend the money...if it is a major electrical/computer problem, the diagnostic will pick it up. anything else is a waste of time.


so you've never tryed to find a vacume leak with WD40??

honestly???? no. but i've honestly never had one..
i'm 38; spraying anything on anything other than to lube or to start wet carby makes no sense to me.. pull it off and have a look, or pay someone who can.
do it properly....!


So how do you think mechanics find vacume leaks?? torch and a mirror?? as for WD40 it is harmless and has no effect on wireing or plastics etc...

 

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