For instance,it only happens when traveling at high speeds like on the interstate for extended periods. Any idea what causes it?
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2003 Nissan Xterra Question: When driving at 75 mph for extended miles, white smoke starts coming out
Answer #1goodguy April 21, 2013, 08:39Master
if the white smoke is coming out of tailpipe you might have a head gasket problem,check anti freeze level
Answer #2pushrod April 21, 2013, 10:03Master
Agree with gg, check ALL fluid levels! Smoke may be caused by any of the vehicle fluids being blown onto hot exhaust system at that speed.
I suspect trans. fluid leak.