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Jim 09-25-2004 10:31:20 69.179.36.175 11304 Report to Moderator	I have a 1970 fire engine with a 1980s detroit diesel. There is a main battery selector switch (dual batteries), a power switch on the dash, along with the actual starter button. When I switch the battery selector to batteries 1&2, the dash battery indicator shows 12 volts. When I then switch on the main switch on the dash, the battery indicator drops to 10 volts. Consequently, when I push the starter button, nothing happens. I was having starting problems a couple of weeks ago but it seemed like the batteries were not charged enough (the battery indicator showed low voltage when the selector switch was turned on but did not change when I turned on the main power dash switch). I put them on the charger and then the truck started a couple hours later. The truck is rigged as positive ground. Your assistance is greatly appreciated. [Reply]  [No Email]
db 09-25-2004 13:51:18 152.163.100.202 11305 Report to Moderator	Re: truck starting problem in reply to Jim, 09-25-2004 10:31:20   Have you tested the battery selector switch with an ohm meter in either position to determine if there is difference in resistence from one side to the other? Are the wires good with good contacts?   [Reply]  [No Email]
Jim 09-25-2004 16:08:18 69.179.46.146 11306 Report to Moderator	Re: Re: truck starting problem in reply to db, 09-25-2004 13:51:18   DB, I did not test the battery selector switch but I did put an ohm meter on the main dash power switch. With the battery selector switch off, I put one lead on the "hot" side of the dash switch (in the off position) and the other lead on the "switch" side. I had the same readings when I turned the switch to "On". There should only be resistance when the switch is "off" and no or little resistance when the switch is on, right? I am thinking that this dash switch is where my problem is.   [Reply]  [No Email]