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justcuz · 11-29-2014, 01:27 PM

Is it electric? I see a possible green wire going to it. I thought is was a sight glass or a coolant filter of some type. A sight glass would be nice to have, since it would show air pockets in the system while running, you could also check your water pump performance easily that way too.

11-29-2014, 01:27 PM	#113
justcuz Registered User Join Date: May 2008 Location: Alta Loma, Ca. Posts: 930	Re: 70 C-20 4x4 Suburban Father/Son project Is it electric? I see a possible green wire going to it. I thought is was a sight glass or a coolant filter of some type. A sight glass would be nice to have, since it would show air pockets in the system while running, you could also check your water pump performance easily that way too.