Fuel Gauge
My fuel gauge is malfunctioning. Sometimes it displays correctly but will move to a full tank when I know it is half full. Will appreciate any suggestion to fix this.
Forum Discussion
The Centroid sending unit in Monaco coaches are adjustable and often, just readjusting solves the issues you are having. The sending unit is mounted on the driver's side and as stated, the side panel hinges up for easy access. (On a side note, I removed the screws and added locking clasps to the under side of both fuel door panels. I use the area above the tank on both sides for storage of items I rarely use like tire chains and a blue tank).
There are some adjustment screws on the top of the centroid unit along with some wires that are held on buy nuts. Clean the wires and make sure the nuts are tight. One of the screws is for the empty tank adjustment and shouldn't be touched. There is another for the FULL tank adjustment. This one should be adjusted with the tank full and the coach on level ground.
Clean the adjustment screws with chemical like Goof Off or Goo Gone to get rid of the undercoating that Monaco sprayed on everything. I found on my coach and others that if you adjust the FULL mark to where the needle is about an 1/8" past the FULL line, this gives you a fairly accurate reading of your fuel.
Each time the adjustment screw is turned, you need to turn on the ignition and wait 30 seconds for the unit to stabilize and then check where the needle has moved to.
I adjusted my sending unit when the coach was new. About 5 years later the unit became irratic. I called Centroid and they told me that it was likely that the sending unit had algae on it. I knew this wasn't the case and I readjusted the unit again. It has worked fine since. I think Centroid is too quick to tell people the unit needs replacement.
There are some adjustment screws on the top of the centroid unit along with some wires that are held on buy nuts. Clean the wires and make sure the nuts are tight. One of the screws is for the empty tank adjustment and shouldn't be touched. There is another for the FULL tank adjustment. This one should be adjusted with the tank full and the coach on level ground.
Clean the adjustment screws with chemical like Goof Off or Goo Gone to get rid of the undercoating that Monaco sprayed on everything. I found on my coach and others that if you adjust the FULL mark to where the needle is about an 1/8" past the FULL line, this gives you a fairly accurate reading of your fuel.
Each time the adjustment screw is turned, you need to turn on the ignition and wait 30 seconds for the unit to stabilize and then check where the needle has moved to.
I adjusted my sending unit when the coach was new. About 5 years later the unit became irratic. I called Centroid and they told me that it was likely that the sending unit had algae on it. I knew this wasn't the case and I readjusted the unit again. It has worked fine since. I think Centroid is too quick to tell people the unit needs replacement.
