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Fuel Gauge reading empty
Posted: Mon Apr 15, 2019 6:01 pm
by JayeJulia
Any ideas,, My fuel gauge stopped working and constantly reads empty. I checked the wiring at the sensor and when I short the two wires, the gauge reads full - so I know the wiring is OK. I suspected the sensor but its reading 85 ohms that I thought may be ok.. when adding 5l of fuel the sensor reading went up to 110 ohm that does not seem right.
The sensor was only a few years old from the Capri Club but now I am starting to wonder if its faulty.. Checking with the meter I am reading about 5v on the main sensor wire.
Any ideas - does anyone have the relative resistance levels that I should read on a good sensor??
Many thanks for any ideas..
JJ
Re: Fuel Gauge reading empty
Posted: Tue Apr 16, 2019 6:57 pm
by Andrew 2.8i
JayeJulia wrote:Any ideas - does anyone have the relative resistance levels that I should read on a good sensor??
Hi,
On Motomobil's Ebay listing for a sender, it states that the resistance is 10-75 Ohms.
https://www.ebay.co.uk/itm/FORD-Capri-M ... SwVMJb~t05
I hope that helps.
Andrew.
Re: Fuel Gauge reading empty
Posted: Wed Apr 17, 2019 6:53 am
by Bug
Just because the wiring is ok, doesn't mean the connectors are getting a good connection.
99% of gauge related issues seem, in the past, to have been due to faulty connections on the sender unit.
Try cleaning them and crimping them a bit tighter? They live in a pretty harsh environment.
Re: Fuel Gauge reading empty
Posted: Wed Apr 17, 2019 8:40 am
by andyd
Bug wrote:Just because the wiring is ok, doesn't mean the connectors are getting a good connection.
99% of gauge related issues seem, in the past, to have been due to faulty connections on the sender unit.
Try cleaning them and crimping them a bit tighter? They live in a pretty harsh environment.
Sounds like a sender fault to me too. I have found they can have a mind of their own
Re: Fuel Gauge reading empty
Posted: Wed Apr 17, 2019 12:14 pm
by JayeJulia
Thanks guys,, I had cleaned all the contacts with no joy.. Sounds like I need a mortgage for a new sender at £114 Cripes!
Re: Fuel Gauge reading empty
Posted: Wed Apr 17, 2019 12:24 pm
by pbar
JayeJulia wrote:Thanks guys,, I had cleaned all the contacts with no joy.. Sounds like I need a mortgage for a new sender at £114 Cripes!
You should think yourself lucky, until recently they were not available.
There is a thread on here about reconditioning your own, the person who posted that had success with it, and I think also offered to do other people's too.