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Re: Fuel Tank Sender Unit
[Re: stumpy]
#648990
03/23/10 04:09 PM
03/23/10 04:09 PM
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Joined: Oct 2003
Posts: 7,506 Az
Crizila
master
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master
Joined: Oct 2003
Posts: 7,506
Az
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Quote:
You are going to be guessing at best. It's not that hard toi pull the sender and bench test it to be sure. You may just need to bend the float arm to get it to read correctly.
Yes, you are probably going to have to pull the sender, but before you do: Check all the wiring to the sender. Make sure the sender is grounded to the frame ( powered idiot ligt or ohm test ). Check to make sure the voltage limiter is working properly - to test it in the vehicle, connect one volt meter lead to the temp sender and the other to a good ground ( leave the temp sender wire connected to the temp stud ). Turn the ignition to ON. The volt meter will fluctuate if the limiter is functioning. If the wiring and the voltage limiter check ok, pull the sender. Oops, you did make sure the tank was full of gas when you only read half right???? - and the tank does not have any major dents / deformed. Ok, pull the sender and hook it back up with a good chassis ground. Run the float from its empty stop to half, and to its full stop and have someone watch the gauge. If the gauge reads correctly, the float overall travel is not the sanme as the original one and will need to be adjusted accordingly. If the gauge does not read empty to full with full float travel: The tank sender may be bad or the wrong one ( check for smooth travel operation with an ohm meter ). Wiring between the gauge sending unit and the dash circuit board ( including the the multi-connection junction )could be bad. Circuit board could be bad. Dash gauge could be bad.
Fastest 300
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