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agarabaghi
01-24-2012, 08:59 AM
Is there a float / moving piece in the fuel sender on my 2006 X1 with MCX engine?

http://img838.imageshack.us/img838/2450/imagepll.jpg

http://img863.imageshack.us/img863/139/imagedma.jpg

My fuel gauge seems to want to tell me im always full now, i believe this happened to me once, and filling the tank up all the way knocked it back into working. Just wondering if there are actually any moving parts of my type of sender...

willyt
01-24-2012, 09:40 AM
Not cool. Those are the first two pictures youve ever posted without a beer or hot chick in the background. (or in a reflection).

Im having the same problem...

JRW160
01-24-2012, 09:51 AM
Mine pretty much always reads full as well. I trialer mine and fill up every time we go out, so it's not really a problem I've looked into.

mikeg205
01-24-2012, 09:55 AM
Not cool. Those are the first two pictures youve ever posted without a beer or hot chick in the background. (or in a reflection).

Im having the same problem...

there's a beer holder at least in the first pick... :D

mikeg205
01-24-2012, 09:58 AM
When I replace mine...the old one had a float...the new one had sensors..its only 2 years old - still working....could be a grounding issue - the new sensor did not seem as rugged as the original.

agarabaghi
01-24-2012, 10:01 AM
http://a7.sphotos.ak.fbcdn.net/hphotos-ak-snc7/407976_10151177454920258_761875257_22827279_156941 0477_n.jpg

CantRepeat
01-24-2012, 10:46 AM
There is no float in that replacement type unit.

Did you set it for full and empty when you installed the replacement?

agarabaghi
01-24-2012, 10:55 AM
Set it? When i replaced it a few months ago, it just started working...

gatorguy
01-24-2012, 10:59 AM
The one in my 97 ps205 looks very similar. It reads full when the tank is all the way full, but as it starts to empty the needle just pings from full to empty the whole time the key is on. I just ordered the replacement unit from Skidim, but haven't put it on yet. I tried messing with the old one first, but couldn't make it work any better.

agarabaghi
01-24-2012, 11:00 AM
We mine was working fine for a while. I know this happened once, and i just topped off the tank and ran it down and it started working again...

I have no clue how much gas is in my boat right now haha

mtajpa
01-24-2012, 12:08 PM
Hear is a link to the instructions to calibrate/troubleshoot and test your sending unit. It may help.

http://www.livorsi.com/pdf/GSFLC3-GSWLC3.pdf

agarabaghi
01-24-2012, 12:16 PM
I dont think my unit has screws to adjust?

gatorguy
01-24-2012, 12:52 PM
That troubleshooting guide is kind of lame. It only lists one type of problem. I guess everyone else is SOL.

mtajpa
01-25-2012, 02:03 PM
That troubleshooting guide is kind of lame. It only lists one type of problem. I guess everyone else is SOL.

Here is another link with some more info on how the new senders without the float work. Also about the calibration.
http://www.hardin-marine.com/Instructions/hm_autocal_senders.pdf

He are some other methods you might try if you think the sender is not the problem. My experience is that usually it is the sender.

FIRST DISCONNECT your battery if you are going remove your sender. Also you should be sure you have a fire extinguisher at the ready.

With the connector disconnected at the sender. Sender installed in the tank. To prevent any fuel fumes from being present. You can try the steps below. These tests will require the ign. switch to be in the run position with the battery connected.

The simple way to test the sender is to jumper the "signalwire" to the ground wire on the connector. This will cause the fuel gauge to indicate past the full mark. If your guage is bouncing. It could be a dirty/bad ground connection at the point where the sender/ground wire is grounded. Usually at the engine block. Try jumpering the signal wire directly to the negative side of your engine battery. If the gauge is still bouncing it may be loose wiring at the gauge. Could also be a bad gauge.

A better way to test you fuel gauge would be to get a 30, 100 ohm and 240 ohm resistors from electronics store. Using the 30 ohm resistor as a jumper connect the signal wire to the ground wire. This should cause a full reading on the gauge. Using the 230 ohm resistor as the jumper you should get an empty reading. using the 30 ohm and the 100 ohm resistors in series you should get half tank reading.

Most fuel senders supply the resistance in the range of 33-240 ohms to the gauge to make t read correctly.

This worked well on mine but I also only have a 2 wire sender. Ground and signal

The three wire sender also has a positive + connection to it. DO NOT SHORT THIS WIRE!!!!!!!!!! It will create a spark and possibly damage the wiring.

Hope this helps.