irischristine Posted November 25, 2012 Report Share Posted November 25, 2012 '99 S70 AWD problems--1. engine seems like it wants to turn over but (occasionally) won't crank, especially in cold weather. (battery was replaced). 2. white smoke from exhaust 3. engine occasionally sounds rough (louder) when driving and car feels like it's vibrating (comes and goes).. engine does have 205,000 miles... Link to comment Share on other sites More sharing options...
burnout8488 Posted November 26, 2012 Report Share Posted November 26, 2012 1. Check battery cables. Do a voltage drop test. (search) 2. You are burning coolant if the white smoke is constant, not just normal white exhaust vapor when it gets cold out. Could be head gasket. 3. Check your engine mounts. Link to comment Share on other sites More sharing options...
James A Sousa Posted November 27, 2012 Report Share Posted November 27, 2012 1 - PNP switch? When it happens next, try holding the button on your shift lever and moving it back and forth all the way 15 or 20 times. 2. Have you tried smelling the white smoke (don't breathe it, just smell it). A sweet smell is coolant. A LOT of water vapor is generated by a gasoline engine, if it condenses in cold air, you see white fog. In summer it is still coming out, you just cannot see it. Condensation dissipates quickly - real smoke cannot, because it is actual particles of matter. Link to comment Share on other sites More sharing options...
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