Electrical Question

[Gollywog]

I've recently mounted some Hella 4000's to the truck. Its a 2001 GU 4.2 Turbo diesel wagon. I've checked the relay connections,and the earth points, and all seem fine, however when the high beam (and the spotties) goes, on the fuel gauge drops. Switch the buggers off and the gauge comes back up, tried disconnecting one light and the gauge moves still, but only slowly.

Any ideas before i take it to the auto electrician.
I've used this relay before on a pair of 100w Bull Lamps, on my rangie and no sweat.

Thanks

[mickyd555]

after reading your post i remember vaigly someting about a negative on the patrol wagons going through the fuel sender in some instances of high current draw. It would be too hard to search here for the answer, its too specific, but i think if you upgrade the earth strap from battery to chassis and engine block you could be on the right track.

good luck

mick

[dirtyGQ]

tap in to the negative and earth it str8 to metal...hope that works

[Gollywog]

Thanks for the ideas, i'll give them a go.
the earth leed from the battery to the chassis/body seems solid, bu i'll check.

[mickyd555]

i just read dirtyGQ's answer and i think he is onto something there. Maybe try earthing the lights directly to the battery first, then try my suggestion. As i say, ive never had this prob, but i remember someone else having it and it was solved with an earthing problem.

[jav]

run a earth to the chassie, i kept melting hand brake cables with my tipper ute till i did this.

[BJHilly]

i have no problems with mine, ran the negative/earth straight back to the battery.

[Gollywog]

Ok, this could do it. At the moment the lights are earthed at the bullbar, i'll try taking the earth back to the battery from the lights.

Would it make a difference if i was to use the second battery for the power as only the fridge runs off this, perhaps a separate circut might also help???

Thanks again for the input...

[mickyd555]

Ok, this could do it. At the moment the lights are earthed at the bullbar, i'll try taking the earth back to the battery from the lights.

Would it make a difference if i was to use the second battery for the power as only the fridge runs off this, perhaps a separate circut might also help???

Thanks again for the input...

what do you mean by seperate circuit, the lights should alrady be on a seperate circuit of there own, how have you got them wired up at the moment.

[meiamaro]

Got told to take power and earth for spotties from the battrie,
it worked,the result was brighter and white light than
the previous set up.
Cheers Ian.

[xenith]

Got to take power and earth for spotties from the battrie, ti is the only way should never run large power devices to anythi\ng but