heavy sound like blast in my suzuki car scilencer?

jahangir k

New Member
i have problem with my suzuki car ,it is running on compressed natural gas, from last some days some heavy big blast type sound is coming from silencer whenever i release accelerator,it is not always but is coming on the road ,what is this ?
 

julien

New Member
if the sound is coming when you release you should check the engine for what is called "back pressure" the valves in the head may be sticking hence the pressure bulids up and is forced out the exhaust.
 
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