Re: wont change over to lpg
Written by Frank S at 01 May 2008 20:43:39:
As an answer to: wont change over to lpg written by stefanie ,a woman in need lol at 11 Apr 2008 22:13:38:
>i have a vw sharon 2l when lpg is selected , u can hear it click over and the car jolts and changes straight back to petrol and the empty tank alarm comes on, i tried over filling tank and managed to squeeze and extra half litre in and it ran fine for 2 or 3 miles and changed straight back , it only runs if i over preasureize the tank,and if i take off faulty part to fix ,will the gas leak out , and yes i am able thank you
>any ideas please
For a start it is dangerous to overpressurise the tank as this can cause some units to 'blow off' and you may cause a major problem elsewhere in the system! On a trip to Scotland I called for gas and did not keep an eye on the pressure being put in the tank (it turned out to be 54bar due to a technitions error setting the pump up. It caused the system to lock up which meant I had two over pressurised tanks of LPG and no means of getting the gas out safely withot help!
Could be the wiring to the guage on the top of the tank multivalve is at fault or the guage itself (this is where the system gets it's information about fuel levels) or you may simply have a dud change-over unit (switch). Or the tank multivalve is seized up in which case you need an expert to pump the fuel out before changing the multivalve as I did. DO NOT JUST TRY TO VENT IT!
The tank will need to be then opened and left to lose all residual gas for 48 hours. Good luck with it and let us know what happens. Frank.