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Topic: lpg fueling problem (Read 1846 times) |
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stafford
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lpg fueling problem
« on: Oct 22nd, 2008, 7:31pm » |
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Hello any members running LPG or know anything about common faults on these fueling system? Mine is cutttining out a lot on LPg and it wont even start up when switching it over to petrol str8 after the lpg failing.. Its a oldish system put in 2000 the brain is a leonardo I think.. Im having to run round on petrol full time at mo and its make me sick!!!
Any ideas lads so at least Im armed with some possibles b4 I take her to alpg specialist??
Many Thanks
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scorpio_man
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Ford Kuga awd
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Re: lpg fuelling problem
« Reply #1 on: Oct 22nd, 2008, 9:16pm » |
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hi there
maybe the filter(s), if fitted, are blocked. 
English lpg is a bit oily (so i've been told), so normally they fit a filter in line somewhere. might be in the vapouriser.
also could the vapouriser itself. i'd open it up to reset the spring. it might not open up to 2 halves (mine doesn't as the spring is still attached), so go gently.
to get 'rid' of the gas in the pipework (not the tank  ), you'll need to find the earth wire from the solenoid (should be near the vapouriser). take this off. start car and when warm enough, switch to gas. it should cut out after a few seconds. do this again. you should be OK to take the system apart now.
should have asked this at the beginning. is it single, multi-point, or sequential system?
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Thunderchild
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My other car's an Aprilia
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Re: lpg fueling problem
« Reply #2 on: Oct 22nd, 2008, 9:49pm » |
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I would check the multiplug to the "brain". It sounds like it is cutting off the gas but not switching back to the petrol injectors which is why it won't start on petrol. Most likely cause, I think, is corosion on the pins causing something like a bad earth. Pull the plug off and put it back on a few times to clear the crud off the pins and hopefully you should see some improvement.
HTH
Tc
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Thunderchild
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My other car's an Aprilia
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Re: lpg fueling problem
« Reply #3 on: Oct 22nd, 2008, 9:51pm » |
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Just had another thought.
It might have nothing to do with the LPG at all and could be an electrical fault. Check for a spark at the plugs when it won't start.
Tc
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stafford
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Re: lpg fueling problem
« Reply #4 on: Oct 22nd, 2008, 10:47pm » |
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so electrical fault could be an issue?? hmm i wonder as when i was ttrying to turn the engine over the speedo was spinning right up 2 9omph plus the 3 seat memory wires have been exposed lately as i broke them whilst leaning on the inside door..nothing to worry about or worth looking
Highlander would you mind PM your mobile so I can talk wth you please whilst at my mechanics place it would be very helpful.. its one thing after another wth my scorp at the momenrt and sorry to say Im tempted to go German if things dont start improving!!
thanks lads
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Thunderchild
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My other car's an Aprilia
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Re: lpg fueling problem
« Reply #5 on: Oct 22nd, 2008, 10:59pm » |
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Battery problem there. When all the dials spin round and then go back to zero, it's a sign that the battery is on the way out. Have your mechanic check the voltage, these cars are notoriously bad for not starting when the battery is low.
Tc
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stafford
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Re: lpg fueling problem
« Reply #6 on: Oct 22nd, 2008, 11:24pm » |
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cant be the battery its brand new and the alternators fine ..green flag checked both at 10 am this morning... vaporiser seem s to be a very common fault on these cars doesnt it
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Highlander
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13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
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Re: lpg fueling problem
« Reply #7 on: Oct 22nd, 2008, 11:28pm » |
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on Oct 22nd, 2008, 10:47pm, stafford wrote:| sorry to say Im tempted to go German if things dont start improving!! |
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Hmmmm my Scorpio was built in Cologne.... 
PM sent 
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on Oct 17th, 2011, 12:35pm, Simmo wrote:I give up !  Too much for an old boy! |
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gozz
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Been around awhile
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Re: lpg fueling problem
« Reply #8 on: Oct 22nd, 2008, 11:48pm » |
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Ah,but it aint a Merc or a BMW,but then it,s available at a knock down price,why ?
because it's ONLY  an old Ford !
There are ten vehicles in my yard and nine of em are FORD !
We speak as we find(as they say around ere)!
GOZZ.
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stafford
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Re: lpg fueling problem
« Reply #9 on: Oct 22nd, 2008, 11:50pm » |
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lol sorry highlander I did mean scorpioman as hes on lpg
so if you read this post scorpio man could I ring you tommoro for 10 mins whilst were looking at possible sticky valves and dirty filters etc..thanks
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pete from Hull
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Non Scorpio at the moment, but still interested...
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Re: lpg fueling problem
« Reply #10 on: Oct 23rd, 2008, 7:49am » |
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You would be as well to take it to an authorised LPG installers and have the system checked out, if it hasn't been properley serviced in the past it could have all sorts of problems. It should be serviced once a year to change filters and check for leaks, cable rubbing and wear/corrosion ect and after 5 yaers all the rubber pipework HAS to be replaced which is a statutary requirement.
The vehicle should be registered as a Dual fuel ie: Petrol/LPG on the log book to comply with insurance requirements etc.
A conversion, although it CAN be done on a DIY basis cost a lot of money to have fitted for the reasons of safety and correct operation. It is calibrated using system specific software and should run faultlessly thereafter, but it isn't a fit and forget set up.
I have run on LPG for about 3 years now in both my old Scorp (now being carefully looked after by GOZZ) and my present car. Four and half litre BMW, it is absolutely brilliant and I think all cars should be run on it.
For what it costs to have it checked out (especially if you haven't had the car long) it is well worth the money, especially with winter in the wings... 
This is as always though, just my opinion based on my findings....
Hth
Pete
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stafford
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Re: lpg fueling problem
« Reply #11 on: Oct 23rd, 2008, 7:54am » |
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thanks pete.. its been with me 3 yrs now and not been a problem..she does need a service now its become apparent.. I wonder how much it ll cost.. if its justa dirty valve in the vaporiser hopefully not too much but I have notied loss of power later and the odd backfire so gonna take her to LPG garage today.. and thanks to this site and you lads Ill not sound a total novice when speaking to the guy and less chance of being tucked up !!!
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scorpio_man
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Ford Kuga awd
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Re: lpg fueling problem
« Reply #12 on: Oct 23rd, 2008, 8:32am » |
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pm sent
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Snoopy
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Re: lpg fueling problem
« Reply #13 on: Oct 23rd, 2008, 9:46am » |
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Speak to Martin Rowe. He is a gas fitter as far as I know and close to you .
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stafford
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Re: lpg fueling problem
« Reply #14 on: Oct 23rd, 2008, 4:21pm » |
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hi snoopy whats his number
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martin_rowe
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Re: lpg fueling problem
« Reply #15 on: Oct 23rd, 2008, 4:48pm » |
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sorry number no good, go on me hols tonight. sounds like you need an LPG fitter, on first glance probably electrical, check all solenoids are earthed correctly, all wiring should be soldered, you may have a solenoid coil that is 'cutting out' when it gets hot, then working again when it cools a bit, vehicles allways harder to start after cutting out on LPG, as theres no fuel pressure (petrol) unless ECU resetts after shut down. make sure thers no leaks in the induction system, particularly if its single point / closed loop, bit more tolerant if its m/point, & too old for sequential. if all basics are ok then down to the controler (leonardo bit) which may need a hook to a reset tool (which tend to be system spacific) its the electric parts not the hardware that determines the type of system, ie stako tank, omvl vaporiser, leonardo controler etc)
there should be a filter in the front control solenoid (if ones been fitted) thats only a gause to filter out bits in the liquid LPG, only m/point / sequential systems have a vapour filter (with electronic injectors for the lpg)
your fault most likly to be down to corrosion / poor electrics / induction problem.
hope that helps a bit.
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stafford
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Re: lpg fueling problem
« Reply #16 on: Oct 23rd, 2008, 5:29pm » |
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thanks Martin its booked in sat how much do yu think a service will be and a minor fault to sort then
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stafford
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Re: lpg fueling problem
« Reply #17 on: Oct 25th, 2008, 2:57pm » |
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Right the car was checked by LPg installer this morning apart from the valve saver fluid not dispensing a drop every 5 seconds the system s fine..the engine is misfiring and the this is really upsetting the LPG system. Its now cutting out on petrol as well and took car to ex AA fanatic whos convinced its dirty injectors and blocks in fuel rail..
He s gonna check all injectors with a diagnostic tool on Monday got new fuel filter coming and the loom and coil pack look ok at first glance.. new sparks are going in with 0.7 gap setting. Have stuck half a bottle of wynns fuel injector cleaner in as well.
My mates right on one hes gonna check the valves and whilst at it check the tensioners so the scorps getting som ewinter TLc as shes kicking off a bit!!!
Good news about the LPG tho....
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scorpio_man
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Ford Kuga awd
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Re: lpg fueling problem
« Reply #18 on: Oct 25th, 2008, 3:27pm » |
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hi there
good news about the lpg indead.
i'd check the tps, coilpacks and wiring before blaming the injectors/fuel system.
remember it started of not wanting to run on gas, now it's both. so i'd say petrol side of it was fine.
hth
btw, check for any air leaks in the induction side/egr valve.
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stafford
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Re: lpg fueling problem
« Reply #19 on: Oct 25th, 2008, 5:37pm » |
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yes Andrew Im gonna def give those all a close look in the morning gonna check every spark plug closely and trace the look all over too..what you think then is the prime suspect on this misfire??
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