Question about 1999 Oldsmobile Alero

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1999 Alero I just bought an Alero for $100, knowing that there is some engine problems. The car runs and drives, but leaks Engine Coolant and overheats. I was thinking about buying a whole new engine...and replacing the old one. What do you guys think I should do?

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  • Oldsmobile Master
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Check the entire engine freeze plugs hoses radiator . check engine oil .if look like milk shake you got a blown head gasket. if it dont burn oil dont smoke . fix the leak . if it got 150000 or more . cost to much to fix buy another engine.

Posted on Mar 22, 2009

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1999 olds alero leaking anti freeze, looks like the leak is coming from between the oil pan and transmission pan. had transmission changed leak seemed to start after that and has gotton worse. Does not...


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Aug 13, 2011 | 1999 Oldsmobile Alero

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Apr 23, 2011 | 1999 Oldsmobile Alero

2 Answers

My 99 alero v6 is over heating not leaking ight mite be hoses or thermostat . or head gasket but when it overb heats the smoke comes from the top of the engine


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Apr 19, 2011 | 1999 Oldsmobile Alero

1 Answer

I have oldsmobile alero 1999, problem is that the engineer idles after running for an hour or when engine is getting hot


SOUND LIKE ENGINE COOLANT FANS NOT RUNNING.CHECK TO SEE IF COOLANT FANS RUNNING WHEN ENGINE START OVERHEATING.IF NO CHECK COOLANT FANS FUSE AND RELAYS.IF ALL IS GOOD.HOTWIRE COOLANT FANS TO MAKE SURE THEY ARE WORKING.IF NO REPLACE FAN MOTOR.IF FAN RUN WHEN YOU HOT WIRE IT.THE COOLANT TEMPERATURE SENSOR FAULTY ARE THE PCM FAULTY YOU CAN USE A SCANNER TO CHECK THEM FOR FAULT CODE.IF EVERYTHING GOOD SO FAR.REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP FLUSH ENGINE BLOCK AND RADIATOR.CHECK RADIATOR AND CONDENSOR AIR CORES MAKE THEY NOT STOPPED UP WITH LEAVES AND OTHER DEBRIS THAT WILL BLOCK OFF AIR FLOW THROUGH THE FRONT GRILLE RADIATOR CORES.ALSO CHECK WATER PUMP WEEP HOLE IF ITS LEAKING WATER PUMP NEEDS REPLACING.

Nov 05, 2010 | 1999 Oldsmobile Alero

3 Answers

Add anti-freeze every 2 wks.. starts to over heat when in town driving..


sounds like a problem with the thermostat stuck closed and foorcing antifreese out the overflow leaving you with over heating car replace should fix problem around 20 bucks

Sep 14, 2010 | 1999 Oldsmobile Alero

4 Answers

Why my 1999 oldsmobile alero runnig hot after I've gotten it fix


there may be air trapped in the coolant system. the fans may not be connected since you had the radiator replaced. bring it back to the mechanic who did the work and tell him your not satisfied.he should be responsible for the discrepany.

Apr 23, 2010 | 1999 Oldsmobile Alero

2 Answers

My 1999 alero is overheating and engine coolant is leaking


hi, i dont know about the dipstick, but your overheating problem is most likely to be the thermostat...sounds like its stuck in the closed position,not allowing colder water to circulate, hence the overheating.......needs changing

Jul 27, 2009 | 1999 Oldsmobile Alero

1 Answer

Water pump leaking?


Water pump would be on the other end. There is a water housing bolted to that end of the head by the p/s pump. This housing is plastic and tends to crack. check it.

Mar 15, 2009 | 1999 Oldsmobile Alero

2 Answers

1999 olds alero leaking coolant


problem could be heads bolts . i put new bolts in put a little sealer on them . make sure your bolt holes is clean free from debris. put a lillte sealer on intake gasket on top and bottom where coolants travel. if all was done . drain engine oil in clean container .set it aside. take radiator cap off .you a coolant pressure rise kit .put a pan under oil pan with drain plug still off .pressure your radiator about 10 psi. make sure you have antifreeze in radiator and engine . when you pressure up to 10 psi look under the car if coolant comes out oil pan. you got leaking head gasket. if not .put oil pan plug back on . put oil back in car . check your freeze plugs also.

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1 Answer

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Dec 10, 2008 | 1999 Oldsmobile Alero

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