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Old 10-27-2009, 10:49 PM
swanny swanny is offline
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Join Date: Jan 2009
Location: Communism
Posts: 632
ASV RC30 glow plug issues

Our 2006 unit is frying the glow plug relay for some reason. 50 amp fuse is fine. I pop in a new relay and test the lead wire before attaching it to the glow plug bus and it has power, then attach the wire and turn the key to will fry the relay every time...resulting in no power to the lead.

Glow plugs work fine when I hook them up directly to the battery.

Any ideas? Our service manual doesn't have much about this. Thanks!
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Old 10-28-2009, 08:43 PM
DiyDave DiyDave is offline
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Join Date: Jan 2007
Location: Gambrills, MD
Posts: 1,695
Check resistance on the wires, 1 at a time, going from the relay to the glow plugs, could be some greened out copper, somewhere. You may also want to check the glow plugs' resistance, and connections. A loose connection will add a lot of resistance. My $.02
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