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First you need to determine what is causing the to the oil loss. Is it leaking and if so determine from where and repair it. If there is no leakage then take the hose off of the PCV valve and look inside. Is it damp with oil? It should be dry. You need to be sure that the system is working properly. Hearing a PCV valve rattle does Not mean it is doing it's job/ The valve should be pulling fresh air in from the valve cover or air filter area. If all of this checks out then you can do a wet and dru compression test to determine if you have a ring problem. If that is the case then you will be looking at a rebuild job on the engine.

what was said maybe true but i have a 99 prizm and every 600 miles you gotta add a quart of oil. don't ask me why its the way the car is made. i took everything a apart, and nothing was wrong, took it to the dealrship still nothing wrong. and if that is ur only problem i wouldn't worrie about it. i have had mine for 4 years putting 1900 miles on it a month, and i have never had anything break. and during the 4years the was totaled, ditched 2 times, rear ended, and drove threw a flood to where the water was coming in the doors. and still nothing wrong. why do i keep fixing it? cuz its a solid car with 162956 miles. but yah if that's ur olny problem don't worrie about it just every other week check your oil and youll be good.

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12y ago
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Q: How can I stop the oil consumption on my 99 Chevrolet Prizm?
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