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Why is car smoking when deceleration? - X3 Series BMW Cars & Trucks

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Why did white smoke begin spewing from exhaust as of today


check anti freeze level white smoke can be a head gasket if it was over heated

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Delica diesel '98 space gear 2.8 turbo diesel. We are second owner 180,000 km. Problem is black exhaust when first starting up and then once accelerating between 80 to 100 km/ph no smoke. When decelerating...


I think you have leaking injectors, after shut off raw fuel dips into cylinders and then on start causews the black smoke unitil it is burned off. Any dealer has the equipment to leak test the system.

Feb 19, 2014 | Cars & Trucks

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I have a 1997 model Toyota 4runner SR5, which I bought within the last three weeks at 230,000 mile but the fuel consumption is excessive and had been bringing out black smoke from the exhaust pipe


black smoke when driving.(not slowing down)is an indication that the rings are shot.(engine rebuild)exhaust will smell of oil.black smoke on deceleration indicates valves stems worn.(head rebuild)

Oct 04, 2010 | Toyota 4Runner Cars & Trucks

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Why is my 7.3, 2000 smoke gray. when i come to a stop.


when you decelerate your valve guides **** oil/air down through the guides so the smoke produced is grey...could also be the crankcase breather blocked (if fitted).

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1 Answer

I have a 2001 Saturn L. Oil is leaking, it is not the head gasket. Tore engine apart and replaced gaskets. Stopped leaking for about 6-7 months and it started to leak again. Did oil change last week...


If you have no visible signs of oil leaking out of the engine then the oil is being burnt. By visible leaking I mean a small puddle of oil under the car after having been left overnight. This can be cured by replacing shaft seals and gaskets. Burning oil is visible as smoke under deceleration (no throttle) and under full power(flooring it). This is due to worn/old valve stem seals(smoke under deceleration) and worn oil rings(smoke under acceleration) This can only be cured by a major engine overhaul or engine replacement. Bear in mind that losing a pint of oil in 1000 miles is acceptable.

Sep 25, 2010 | 2001 Saturn L-Series

1 Answer

Why my maxima smoking alot? is it oil leaking into the valves, if so...How can i fix it?


If it smokes more on deceleration, it could be oil sucking down through worn valve guides. If the engine has overheated, you will get smoke from oil getting past the rings.

Either way the cheapest solution is to try a smoke stop additive. The concept is that they actually build up varnish in the places where oil might be leaking around stuff and reduce the oil loss.

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1 Answer

00 ford focus wagon a/c & engine smoke problem


Engine smoke problem-- Automatic, chk transmodulator. If oil in vacuum line, modulator is defective. Engine sucking up trans fluid. 10.00 fix . good indicator is smoking at cruising speed or deceleration.
Bad rings smoke under acceleration and bad valve guides smoke on deceleration. poor crankcase ventilation (pcv valve) will cause engine leaks and oil blowing out of dipstick. Good Luck

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1 Answer

Smoke from exhaust when decelerating on Ford F-350 Powerstroke


Either valve stem seals are leaking or the turbo oil seal is leaking.

Apr 29, 2009 | 2001 Ford F350 Super Duty SuperCab

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