Question about 1990 Nissan Stanza

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Black smoke from exhuast

Car keeps cutting off and lacks power and black smoke comes out of exhaust

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Black smoke from exhaust means a rich oil/fuel ratio, sometimes it causes by a clogged air filter or a problem on fuel injection system.

Posted on Aug 09, 2010

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Ford laser 99 no power


Hi there.
well when you throttle up to about 2000rpm do you get blue smoke coming out the exhaust.When driving on flat road will it power up as normal with out missing or getting hot.
what colour was the old spark plugs were they black or light brown.
When you start engine and run for 3 minutes then let it idle and remove oil filler cap do you get smoke coming out.
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Number2 spark plugs brown [good] if black soot as num1.
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OTHER WISE GET YOUR TIMING CHECKED AND SET TO BOOK.

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Has the car overheated recently or in the past? If you are seeing white smoke from the exhuast you may have a cracked cylinder head or blown head gasket. If you are seeing white smoke from the exhaust, check the oil for signs of coolant (milky brown oil color or any foamy white on the dipstick) Also check you coolant level to see if it is lower than normal. If the smoke you are seeing is black you should also check you oil level. (could be a burned valve).

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Dear Sir,
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1 Answer

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