Mysterious intermittent current drain identified - rusted fuel heater relay

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Joined
May 13, 2013
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I got super lucky on this one. Some days I'd come out and the battery was fine in the morning other days it was down to zero. Every time I tried to find the drain during the day there was nothing showing up on the meter. Went out this morning to replace the antenna with the car having not been started yet and I burned my arm on the fuel filter. Ah hah! I pulled the rubber cover off of the relay and it was nearly unrecognizable as such due to the corrosion. It was also soaking wet. I disconnected everything and hopefully my problem will be solved.

Question - what turns the fuel heater on and off? Is there also a block heater? It is somehow linked into the defroster button or is it controlled by a thermostat somewhere?

I have a few other disconnected pieces in that area. Not sure what else it may be connected to.

Cheers,
Rich
 
Ahh. Lost my signature when I switched to the iPad app. It's a 1986 LJ70.
 
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