This post contains the general instructions for changing the coalescent or coalescing CNG fuel filter on any of the Dedicated or Bi-Fuel Ford CNG vehicles. For instructions on changing the coalescent fuel filter on the 2001 – 2005 Honda Civic GX Click – This Link
To purchase a filter for your dedicated vehicle- Click This Text
To purchase a filter for your Bi-Fuel Ford - Click This Text
If you can change your cars oil, you can change your own coalescent filter. You will need a new coalescent filter, replacement o-rings, drain plug, a cup, medium to large sized crescent wrench and a metric Hex or Allen wrench set.
Perform this procedure in an area that is well ventilated and removed from sparks or open flame. The Crown Victoria and Ford Contour will need to be elevated with a jack to gain easy access to the coalescent filter housing. Choose an area that provides a hard level surface. Before jacking or elevating any vehicle, set the parking brake and place the proper blocking behind the wheels remaining on the ground. Do not rely solely on the jack to support the vehicles weight; always use appropriately sized jack stands to support the vehicle.
PROCEDURE
For Crown Victoria’s and Contours, locate the shutoff valve. The shut off valve for the Crown Victoria is located by the filter housing, which is underneath the car almost directly beneath the driver side passenger seat. If you cannot find it, follow the emergency brake cable, which passes through the skid plate that covers the coalescent filter housing. The Ford Contour shut off valve is in the trunk by the tank valves and is sometime covered by a plastic cover. The filter housing for the Contour is beneath a skid plate that is under the vehicle almost directly below the radio. If your vehicle has a shutoff valve and you have located the valve move on to step “1”.
If your vehicle does not have a shut off valve or you are unable to locate the valve, read on. Almost all of the F150, F250 and F-Series trucks as well as the E150, E250 and E-Series Econoline vans do not have shut off valves. The filter housing for the trucks and vans are located just slightly behind the driver’s seat. There is a cross section picture of the filter housing attached to this post. The housing is connected to the inside of the driver’s side frame rail.
There are two ways to depressurize the fuel lines on a CNG vehicle. First some basic CNG tank education is in order. For safety, CNG tanks have electronic solenoid valves that are wired to the ignition switch. When the ignition is off, or in the event of an accident the solenoid valves on the CNG tank(s) are closed. With the valves closed, the filter housing drain plug may be safely loosened. Only the pressure left in the fuel lines will be vented.
I was unable to write this in less than 1000 words so the instructions are attached as a PDF. Select the document image directly below this sentence to view the coalescent filter change proceedure.
Coalescent Filter Change Proceedure - PureCNG.pdf
Key words: Parker Hannifin, Racor, Finite, CLS112-6, CLS112-10, CLS112, 050-11-BQ, 05011BQ, 6T04-023
To purchase a filter for your dedicated vehicle- Click This Text
To purchase a filter for your Bi-Fuel Ford - Click This Text
If you can change your cars oil, you can change your own coalescent filter. You will need a new coalescent filter, replacement o-rings, drain plug, a cup, medium to large sized crescent wrench and a metric Hex or Allen wrench set.
Perform this procedure in an area that is well ventilated and removed from sparks or open flame. The Crown Victoria and Ford Contour will need to be elevated with a jack to gain easy access to the coalescent filter housing. Choose an area that provides a hard level surface. Before jacking or elevating any vehicle, set the parking brake and place the proper blocking behind the wheels remaining on the ground. Do not rely solely on the jack to support the vehicles weight; always use appropriately sized jack stands to support the vehicle.
PROCEDURE
For Crown Victoria’s and Contours, locate the shutoff valve. The shut off valve for the Crown Victoria is located by the filter housing, which is underneath the car almost directly beneath the driver side passenger seat. If you cannot find it, follow the emergency brake cable, which passes through the skid plate that covers the coalescent filter housing. The Ford Contour shut off valve is in the trunk by the tank valves and is sometime covered by a plastic cover. The filter housing for the Contour is beneath a skid plate that is under the vehicle almost directly below the radio. If your vehicle has a shutoff valve and you have located the valve move on to step “1”.
If your vehicle does not have a shut off valve or you are unable to locate the valve, read on. Almost all of the F150, F250 and F-Series trucks as well as the E150, E250 and E-Series Econoline vans do not have shut off valves. The filter housing for the trucks and vans are located just slightly behind the driver’s seat. There is a cross section picture of the filter housing attached to this post. The housing is connected to the inside of the driver’s side frame rail.
There are two ways to depressurize the fuel lines on a CNG vehicle. First some basic CNG tank education is in order. For safety, CNG tanks have electronic solenoid valves that are wired to the ignition switch. When the ignition is off, or in the event of an accident the solenoid valves on the CNG tank(s) are closed. With the valves closed, the filter housing drain plug may be safely loosened. Only the pressure left in the fuel lines will be vented.
I was unable to write this in less than 1000 words so the instructions are attached as a PDF. Select the document image directly below this sentence to view the coalescent filter change proceedure.
Coalescent Filter Change Proceedure - PureCNG.pdf
Key words: Parker Hannifin, Racor, Finite, CLS112-6, CLS112-10, CLS112, 050-11-BQ, 05011BQ, 6T04-023
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