My car(Mehran-VXR-2009) was going wonderful after tunning, yesterday I go to my regular mechanic he done something with CNG adjustment and Now I am having a problem of Starting with CNG. It takes long self to start even when I drive 13km (from home to office). it is starting at petrol wonderfully and at CNG sometimes it takes long self sometime very short.
also when I asked my mechanic he immediately said that it the problem of Head-gasket as 20 days ago radiator's fan goes off due to fuse failure and temp.gauge touched just end of green region. then I changed the fuse and car came to the normal working. I checked the water inventory and change the engine-oil after that it is fine and water level did not reduce even one drop.
Please guide me for the best.