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My son's Nissan Sentra has been sitting around for about 9 months because of a nasty divorce situation. When he finally picked it up from the shop and drove it home, it was smoking a little bit. What could be causing the smoke. Is there anything that should be done to a car that has been sitting for 9 months to make it ready to drive?

2006-09-22 06:07:26 · 5 answers · asked by Luci 4 in Cars & Transportation Car Makes Nissan

It's a 2000, Nissan Sentra with a new starter, 100,000 miles, and a new battery.

2006-09-22 06:08:34 · update #1

My son tells me there was a small amount of smoke coming from the exhaust and his passenger thought they could see some coming from the engine. It appeared to be white.

2006-09-22 06:16:16 · update #2

5 answers

if it's white smoke then it's probably water condensation from sitting too long. That should go away by the next gas fill up.

if it's white smoke and you're losing water it could be serious engine damage.

if it's black smoke, at 100k miles could be worn engine at those miles.

i bet it's my first opinion and if it continues smoking to get to a mechanic.

2006-09-22 06:20:31 · answer #1 · answered by Anonymous · 0 0

Possible causes for smoking include:

White smoke - White smoke is in fact coolant in your cylinders. By and large the cause of this is a blown head gasket.

Black smoke - This is soot caused by an incomplete burn of all of the fuel in the combustion chamber. A tuneup should cure this.

Blue smoke - This is the big one, as blue smoke is caused by burning oil. If it simply did it at startup, and quit shortly thereafter, it is likely that the valve guides are worn. Change the oil with a can of engine flush, and try running oil that is a grade or two heavier than your normal choice (e.g., 10w-40 in lieu of 10w-30), supplemented by an additive like CD-2 or Lucas. If the smoke is emerging anytime the gas is pressed, the cause is likely worn rings. The same steps listed above should be tried, but it is more likely in this instance that an engine rebuild will be necessary.

2006-09-22 07:14:27 · answer #2 · answered by Harry 5 · 0 0

Blue smoke:not burning all the fuel.Black smoke:most likely the rings if it smokes all the time,valve seals if it just smokes when you crank it up.Answer kinda ify due to little info.

2006-09-22 06:18:18 · answer #3 · answered by Anthony 2 · 0 0

if it is white smoke its probably a blown head gasket and\or oil burning off from sitting to long

2006-09-23 07:21:51 · answer #4 · answered by lukky_you19 1 · 0 0

Need more info:

Color/smell etc of smoke.

Could be a lot of things.

2006-09-22 06:10:19 · answer #5 · answered by p_rutherford2003 5 · 0 0

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