Preface: I'm new to CNG.
I just took delivery of a 2003 Chevy Cavalier. I had an additional tank added in the trunk by cngmotors.com
It looks like this: http://www.cngmotors.com//gal/cng/po...os/cavtank.jpg
My question is this. As I'm driving, there is a funny intermittent (a few to several seconds apart) noise that comes from the rear of the vehicle. It sounds like a medium pitch tone (the pitch varies from time to time a little). The timing of the tone seems to vary with how much fuel I'm pulling from the tank (infrequent if idling, more frequently if accelerating). It is louder sometimes than it is at other times.
Is this sound normal? I'm worried that the high (low?) pressure regulator is failing.
Does anyone else have any experience with this?
Keith
I just took delivery of a 2003 Chevy Cavalier. I had an additional tank added in the trunk by cngmotors.com
It looks like this: http://www.cngmotors.com//gal/cng/po...os/cavtank.jpg
My question is this. As I'm driving, there is a funny intermittent (a few to several seconds apart) noise that comes from the rear of the vehicle. It sounds like a medium pitch tone (the pitch varies from time to time a little). The timing of the tone seems to vary with how much fuel I'm pulling from the tank (infrequent if idling, more frequently if accelerating). It is louder sometimes than it is at other times.
Is this sound normal? I'm worried that the high (low?) pressure regulator is failing.
Does anyone else have any experience with this?
Keith
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