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Why is my montero sport burning 1 quart of oil every 1000 miles?
Wiki User
∙ 14y ago
If the engine is a 3.0 liter there is a good chance the valve guides, primarily on the exhaust valves, have dropped down. THis is a great engine however this has been an issue for Mitsubishi and Chrysler as this same engine was used heavily in mini-vans. If your burning oil heavy at idle or when you take your foot off the gas pedal the valve guides are most likely the issue. To repair you would need to remove the heads and replace the valve guides. I should say though it is possible that the valve seals themselves have just worn; if this is the case they can be replaced without removing the heads. You'd need an air compressor and a valve spring compression tool. To do this you'll need to take much of the fron of the engine apart plus remove the cams. While your putting it back together go ahead and replace the timing belt and belt tensioner. I hope this may have helped
Wiki User
∙ 14y ago
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