1999 Oldsmobile Aurora Repair Question
Topics covered: Coolant, Heater, Thermostat.
Mileage: 155,000 miles.
Mileage: 155,000 miles.
Asked on November 15, 2011
How to flush and fill cooling system on a 1999 olds aurora 4.0 northstar engine
Should thermostat be changed if over 5 years old?
Asked by 1013jessAnswer
Replied on November 15, 2011
You should replace it-Open the drain plug and keep flushing it till it clears up then put fresh coolant in keep filling it till it wont take it-make sure heater is on high-
