bikinkawboy
Well-Known Member
Fortunately I took photos of the parts truck as I disassembled it. I'd like to know what the square module located in the upper left corner of the photo is, the one fastened to the inderside of the fierwall. This '77 W100 truck had the supplemental electric heater on the choke. Neither of my other trucks have the heater, and neither do they have the module. However, when describing the heater, my factory shop manual only shows and mentions the small ceramic control module mounted right next to the choke well. Anyone know what this is? Thanks!