Fuel gauge

[paul burney]

I am having problems with my fuel gauge I have a mrk2 nova nd I have put a Mark 1 loom and my feul gauge goes all the way up but sometimes when I am driving it starts working why would this be. Any ideas anyone.

Thanks
Paul

[marc69]

Is it a mk1 sender, they are rubbish and always do this.

[paul burney]

No it's a Mark one tank with a Mark 2 sender

[paul burney]

Any ideas anyone

[marc69]

I tried to fit a mk2 sender to my mk1,
a....it wouldn't physically fit in the hole in the tank and
b....I tested it by connecting the wires and they just wouldn't give a reading so....
c.....I use the odemeter and fill the tank every 200 miles, that's my petrol gauge! and has been since I got it in 2003

[marc69]

Being more serious though, perhaps the sender has just worn out, test by connecting another one to the wires and putting it at empty, half and full.

[paul burney]

What's the best way of fixing it am I better off getting a new sender unit

[marc69]

If you can get hold of one to test first, then if the wiring and gauge are ok, see if you can get a working one from a scrappy etc. I don't know how much vauxhall want ofr a new one but, 13 years ago I bought a mk1 sender new, 38 qiud and like all early senders, it lasted 18 months!