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Discussion Starter #1
Need help with my Fisher straight blade plow.
I have the plow on a 2004 GMC 2500HD gas model. It’s been fine for 2.5 seasons. About 2 weeks ago I went to use the truck (plow was NOT attached) and the battery was stone dead. I drove the truck just a few days before (no plow attached) it seemed fine.
I jumped the truck and gauges wouldn’t work, radio wouldn’t go off, interior lights wouldn’t shut off a few other oddities. So I assumed alternator?
I started to disconnect the battery to test and charge it when i disconnected the positive cable to the plow solenoid it made a noise and everything worked great in the truck.
I hooked it back up a few days later and things seem to be working until this morning when the truck randomly locked me out? Can the solenoid be causing this?? Thanks in advance!
 

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Yes, a sticking solenoid can drain your batt.

Also it might be a good time to do a parasitic drain test.
 

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Discussion Starter #5
Ok. But a faulty solenoid can drain the battery even without the plow hooked up?
I will Look into running this test. Thank you!
 
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