Gulf Stream Owners RV Forum - View Single Post - Engine running doesn't charge coach batteries

eddard · 09-06-2014, 03:00 PM

It may be different in the newer models, but on my 1998 Gulf stream Ultra, the isolator solenoid is mounted in the engine compartment on the firewall just right of center. the coach battery lead is clearly labeled, the engine (chassis) lead is not. Using a multimeter, you can test for an energizing signal by probing the terminals on the solenoid. If the triggering voltage is there, it would appear that your solenoid has failed.

As a temporary fix, you could put a fused jumper from one side of the solenoid to the other. I made one years ago for my old MH, using 12 gauge wire, a 10 amp fuse, and alligator clips.

09-06-2014, 03:00 PM	#3
eddard New Member Join Date: Aug 2014 Posts: 10	Re: Engine running doesn't charge coach batteries It may be different in the newer models, but on my 1998 Gulf stream Ultra, the isolator solenoid is mounted in the engine compartment on the firewall just right of center. the coach battery lead is clearly labeled, the engine (chassis) lead is not. Using a multimeter, you can test for an energizing signal by probing the terminals on the solenoid. If the triggering voltage is there, it would appear that your solenoid has failed. As a temporary fix, you could put a fused jumper from one side of the solenoid to the other. I made one years ago for my old MH, using 12 gauge wire, a 10 amp fuse, and alligator clips.