new sending unit same reading ?

[canman]

hi everyone , well i just installed a new sending unit in the gas tank , i thought problem solved , well not so , it is staying on full all the time just like the other did . i called a friend of mine who is a marine mechanic he told me to take the positive wire off the sending unit and ground it out , he said if the gauge goes to empty i need a new gauge . i am going to the boat in the morning and try this , does this sound right ? i have no kinds of testers other than my 12 volt probe .. thanks ..

 

[UncleWillie]

Re: new sending unit same reading ?

What Boat?
What Gage?
What Sending unit?
What was the original problem?

Details please!

 

[Bob's Garage]

Re: new sending unit same reading ?

hi everyone , well i just installed a new sending unit in the gas tank , i thought problem solved , well not so , it is staying on full all the time just like the other did . i called a friend of mine who is a marine mechanic he told me to take the positive wire off the sending unit and ground it out , he said if the gauge goes to empty i need a new gauge . i am going to the boat in the morning and try this , does this sound right ? i have no kinds of testers other than my 12 volt probe .. thanks ..

I believe the information you have been given is incorrect. However, without being there I can not be certain. You may find this informational web site, http://www.boatinghowto.com/content/troubleshooting-those-pesky-marine-gauges-124/, useful.

 

[Home Cookin']

Re: new sending unit same reading ?

none of them work right. That's the bottom line.

 

[rickryder]

Re: new sending unit same reading ?

If you disconnect the wire from the sender to the gauge (it may be pink) the gauge should read empty. If you now take the wire from the gauge and ground it, the gauge should read full. If nothing happens or the readings are intermittent, you need to find where that wire connects at the gauge and do the same tests, no connection to the gauge and grounded. If the gauge doesn't react properly it is bad OR the battery connection is bad/intermittent. To check that you need to measure the voltage to the meter and wiggle things (connections) to see if it fluctuates.

 

[Don S]

Re: new sending unit same reading ?

If the gauge reads backwards, just turn the sender 180?
Your's may look a little different, but they work the same.