In the middle of exploratory surgery on my '92 Grand Am's Quad Four. Oil pump and intake screen look near perfect. No evidence of sludge. Might change out the relief valve just for the heck of it. On to the bearings next.
Down the road after the problem is found and fixed I want an oil gauge to keep track of things. My shop manual indicates that at least some '92's had a full set of gauges, and the wiring connector for both clusters appears to be nearly identical. Have not had any luck finding an instrument cluster with gauges at the salvage yards yet. Does anyone know if these machines did actually come with gauges?