RepairPal Certified shops can diagnose and repair your 1990 Oldsmobile 98. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Check to see that rad is topped up,might need a thermostat,are there any fluid leaks,if so the rad will not hold pressure and wont make as much heat,did it just all of the sudden stop working or what?