Where's the glow plug relay on a 390HST?

Ernie Alabama · Jan 20, 2012

I'm seeing zero volts at the glow plug rail with the key in the on position. The glow plugs are on the same fuse as the horn, which works, so, I figure there's a relay. Perhaps behind the dash? Is there a timer as well?

Dallas_Lilly · Jan 20, 2012

If your tractor is the same vintage of LS machines as my Montana, and I think it is there is a timer and a relay behind the dash mounted to the firewall. My relay on mine failed a couple of years into owning, I replaced it with something I could buy locally. I explained it here http://www.tractorbynet.com/forums/montana/156288-need-glow-plug-relay.html

Ernie Alabama · Jan 20, 2012

Yeah, it's an 07 so about the same as the Montana. Thanks for the link. I'll call the LS dealer about 20 miles north of here and see if he can get me one. Barring that, it's off to NAPA.