1982 GMC Van V8 Two Wheel Drive Automatic 72700 miles
I have a class c motorhome. Bolted on the left valve cover is what looks like a relay. The only numbers I can get off of it is 477322 on top and at the bottom is 2156. Didn't know what this does or if is should be replaced?
Wednesday, January 27th, 2010 AT 4:49 AM