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Olds. Aurora 98 Overheat.

Tiny
INTELLECT2505
  • MEMBER
  • 1998 OLDSMOBILE
Please help. I have an Olds. Aurora 98 that overheats excessively. I have changed the thermostat 3 times along with repl. The water pump. Ac tensioner w/belt, new radiator and bottom raiator hoses. The thermostat appeared. To work after replacing. This is my last ultimatium b4 considering buying engine ( I love the car) please help me. I can not afford any more guesses. There is alot of white smoke coming from the exhaust. The vehicle is at 150,000 miles.
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Monday, October 22nd, 2007 AT 6:39 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Sounds like headgasket is gone, could also be the head or block is cracked

Have it block and pressure tested-do the block first to pinpoint a combustion leaking into the cooling system or a gas analyzer to sniff for hydrocarbons at the radiator fill neck.

Pressure test: do not do a pressure test if there's leakage at the headgasket this might cause coolant into the cylinders and lock it up or bend a connecting rod if cranked thereafter. The headgasket should be repaired before doing the pressure test.
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Monday, October 22nd, 2007 AT 6:52 PM

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