CNG System HELP
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The system was put in in 2011 and says to have it serviced and inspected every 3 years. The tank says good until 2031. Since I bought the truck I haven't used the CNG system other than what was in the tank and then haven't used it since because there were no places to fill it up where I lived. Since relocating there are a few places to fill it so decided to use it but it either won't even try to switch from petrol to gas. Or if it does it switches right back. I filled the tank so that isn't the issue. What other issues could there be? Anything I can try or should I take it into a CNG service professional and does anyone know how much it runs to service a tank and system?