Jeep HEMI with lpg gremlins.

ChrisJC · Post by **ChrisJC** » Mon Jul 04, 2011 7:27 am

Hmm. Weirdness is often an earthing issue. Do you know how the fuel sender is earthed. And how the tank solenoid is earthed? They should NOT be earthed via the tank itself as that should be insulated from the vehicle body.

Chris.

ChrisJC · Post by **ChrisJC** » Mon Jul 04, 2011 8:52 pm

The gauge sender is on the tank, as is the solenoid. It is a float system, just like a petrol tank. (well, similar, but the float is inside the pressurised tank, the sender is outside, separated by a brass plug).

Chris.

ChrisJC · Post by **ChrisJC** » Sun Jul 10, 2011 7:08 am

I think isolating the tank from the car body is a safety thing - so no electrical currents can flow in the tank and cause a spark.

Yet some tanks (e.g. my doughnut tank) is definitely not isolated, but the torpedo tanks on my Landie are....

Maybe not so important.

But most certainly none of the electrical components on the tank (sender & solenoid) are earthed via the tank.

Chris.