• Tiny
  • wolfie
  • 1989 Oldsmobile Calais
  • 4 CYL
  • FWD
  • automatic
  • 153,000 miles

I have a 98 Olds calais with a 2.5 liter 4cyl. Engine that is overheating. After driving under 50 miles, the coolant blows out of the overflow and the car over heats. I have replaced the water pump, radiator cap, thermostat and finally the radiator itself. It still blows coolant out of the overflow. There are no (other) signs that would indicate a head problem, (water in the oil, blue or white smoke from the exhaust, ect.). Any ideas of what might be wrong that I haven't thought of? The car has 153,000 miles on it.

Saturday, July 16th, 2011 AT 10:59 PM

1 Answer

  • Tiny
  • Wrenchtech
  • Expert
  • 19,815 posts

That's most likely a blown head gasket. You need to get it chemical tested to determine that.

Was this
Saturday, July 16th, 2011 AT 11:22 PM

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