unable to use all the CNG
07-07-2017, 08:12 PM
#11
Senior Member
CNG is monitored, and controlled by pressure, It is a gas under high pressure.
LNG and LPG are a liquid under pressure and monitored, measured and dispensed as a liquid. The pressure remains the same as long as liquid is present. with CNG the pressure continually drops as the gas is used, so pressure sensor would determine the amount of fuel remaining.
LNG and LPG are a liquid under pressure and monitored, measured and dispensed as a liquid. The pressure remains the same as long as liquid is present. with CNG the pressure continually drops as the gas is used, so pressure sensor would determine the amount of fuel remaining.
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dualfuel (07-07-2017)
07-07-2017, 08:17 PM
#12
Member
Thread Starter
I am hoping it is not the fuel filler, I had a new one fitted on my first tank inspection.
If the filter is plugged already that would mean the place I used to fill up, is not keeping a Sharp eye on things.
They use a compressor to pump this CNG into your tank evidently, if oil gets past the rings you end up with that oil in your system, I am told.
Propane does work a bit different than CNG and does have slightly different equipment, but both systems have a filter.
We are not experiencing any performance problems, starts first turn of the key, when running on CNG. I have at last found a place in our area that has a CNG trained mechanic I will call them Monday and hope to book an appointment.
If the filter is plugged already that would mean the place I used to fill up, is not keeping a Sharp eye on things.
They use a compressor to pump this CNG into your tank evidently, if oil gets past the rings you end up with that oil in your system, I am told.
Propane does work a bit different than CNG and does have slightly different equipment, but both systems have a filter.
We are not experiencing any performance problems, starts first turn of the key, when running on CNG. I have at last found a place in our area that has a CNG trained mechanic I will call them Monday and hope to book an appointment.
07-07-2017, 11:11 PM
#13
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When I worked @ Honda, we had CNG-fueled Civics, and bad fuel filters were the #1 problem with drivability. I start with that first, before the fuel pressure regulator. Replacing the pressure regulator it is not a DIY job, a lot of pressure and you can hurt/kill yourself if you don't have the right training/tools. Best left to a professional
Last edited by FrozenTundraGuy; 07-12-2017 at 09:53 AM.
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dualfuel (07-07-2017)
07-08-2017, 12:45 PM
#14
Member
Thread Starter
I don’t know enough about the CNG system to work on it. I will have to take the vehicle to a qualified CNG mechanic. It has taken me a surprising long time to find a place. Ford do not a seen to let the public know they have a CNG trained mechanic. Thank you for your good advice, I will come back to this thread when the problem has been resolved.