[CSGAS]

CST10, it sounds like your problem is most likely the light switch. I know it seems unlikely but a lot of circuits run through it. If that's not the problem, your printed circuit may not be connecting to the harness connector well anymore--brittle, cracks, corrosion, whatever.

themikehyde, I haven't run across vacuum hose drawings yet, but there are very few vacuum items compared to most passenger cars. The 6 cyl wiring diagrams are on the first page.

Guys, you know what I found out? NONE of the GM diagrams that appear to be useful, show the cig lighter option and what color wire is "factory correct." I only realized a few weeks ago that the INSTALLED cig lighter, is NOT connected in standard/baseline vehicles--only with package upgrades!