Question about 1999 Daewoo Lanos

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96 ford windstar rusty coolent and backflow bottle smells like ga

Gas .we did a flush and put a new therm. on it but the water is still rusty and is starting to over heat again a week later what do we do

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Open the petcock valve on the bottom of the radiator. Start the vehicle and turn the heater on high. Remove the radiator cap and insert a hose with fresh water running. continue this for as long as it takes the water coming out of the petcock to become clear. It could take an hour or more. Once the water is clear, shut the vehicle off, and let the rest of the water drain out of the petcock valve.
Restart the vehicle and add fresh coolant. Leave the radiator cap off and let the vehicle run until the coolant stays at the top of where the radiator cap goes, this will ensure you have bled all of the air out of the cooling system and there is enough coolant in the system. Replace the cap and you are good to go.

Please remember to rate this fix.

Posted on Feb 14, 2009

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Does the title block say smells like gas?
1. when it is cold and not running, / gently squeeze top radiator hose, confirm no pressure, I say gently cause if you just squeeze it completely and its 8 years old you may not pay attention to the faint crackle feel which will be the fiber breaking in the hose, which will the allow the hose to burst shortly after(sometime soon).
2. Next have somebody start the engine while you (safely &) gently squeeze hose and see if it pulses ever so slightly with engine revolution, if it does could be head gasket or cracked head.
3. If it pressurizes before it get hot with no pulsation. have a radiator shop use a combustion detector to sniff the radiator to confirm head problems. also they can check the radiator cap to see if ok
4. The gas smell could be combustion gasses forced into water jacket. ( unless someone dumped some gas in the radiator from being stored in a antifreeze jug )
5. as far as the rusty water, has the system been properly maintained? sometime just flushing ( or improper flushing) will leave some residue that can still loosen deposits later on.( Any cast iron or bare metal pipes will also cause rust in a Untreated system)
6. Always add your mixture / never run 100% water. even for short runs.
NOTE: Water boils at 212 F at sea level pressure, a good cap will bring this boiling point up to above 230 F, (Guess what happens when you remove the cap on 230 F water depressizing the water jacket)
(Its not pretty) Severe Burns.
People tend to think that this would indicate a overheating car, But todays engine will run about 200~220 with hot spots that will reach higher. remember t-stats are sometimes 192 degrees, but look where that water (t-stat) is located, away from the heat source and in the mixed water flow.
7. Confirm t-stat was installed properly, some can be put in backwards, not sure if yours could, if it ran for a week it probably not backwards unless each trip was very short.
8. remember to confirm proper fan operation when finished.
9. Hope this fixes ya
Bill Czerkie


Posted on Feb 14, 2009

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How is your water pump ??
also check the inside of your radiator.
it could be clogged

Posted on Feb 14, 2009

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