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Vanishing coolant! 200 1990

posted by  Volvo From Heck on  Tue Jun 2 09:50 CST 2020
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last visit: Mon Oct 13 20:56 CST 2014
[RELATED]

Small amounts of coolant loss to the cylinders (or cylinder) may not show up as "clouds of smoke". There are at least two paths coolant can take. I would do a compression test right away. By removing the spark plugs for a compression test you'll be able to examine them. Look for white crusty deposits on a plug with coolant contamination. Take the compression test with the motor both cold and warmed up. A blown head gasket will cause the crust.
Another path for coolant is through the radiator to the auto transmission (if your car is so equipped). Check your transmission dip stick for discoloration (light pink foamy fluid). The trans cooler section of the radiator is a known trouble spot with the later aluminum/plastic radiators. If you do find such contamination a new radiator is required and a thorough flushing of the transmission is needed. Antifreeze in the transmission oil will kill a transmission in short order. -- Dave






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