Question about 1996 Chevrolet Impala SS

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Black soot comes from tailpipe when hard acceleration.

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Normal carbon build up run some stp gas treatment

Posted on Oct 14, 2010

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Spark plugs went bad after 4000 miles

The black soot is carbon from the gas usually caused by too much fuel being burnt. Incorrect fuel to air ratio. Take vehicle to service center and have set.

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Black soot coming from the exhaust would be excessive fuel.
The list includes injectors, fuel pressure regulator, fouled plugs, faulty coil, dirty air filter, and so on.

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Poor fuel economy 2006 dodge durango

Is the check engine light on? Do you have the tire pressure up to spec pressure? Are you using the correct weight of engine oil? Do you accelerate like an egg is under the gas pedal?

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Black smoke from exhaust, rough idle, black soot on plugs

signs of a bad fuel pressure regulator-- the vehicle will run rough, the engine will not start ( usually in the mornings,) many times engine starts but stalls shortly after starting. a bad regulator can result in fouled plugs. replacement is only cure. 1- black soot on plugs-2-black smoke from tailpipe-3- running rough-4- stalling, good-day! repost if need be.

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There is a black smoke coming of the exaust? and it is shaking too much when it is on

a bad fuel pressure regulator causes this. black soot on plugs, black smoke from tailpipe, running rough, stalling. first check plugs and wires.

Jul 01, 2010 | 1993 Oldsmobile Cutlass Supreme

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Lacking power and making rattle noise

sounds like your cat converter has broken up and is now plugging you exaust.turn off engine crawl under truck and bang on cat converter with piece of wood if it rattles cat is bad. but dont just replace it because something caused it to go bad,number one reason of broken cat is a hard missfire so if runs rough fix that first.number two reason is to rich fuel mixture is it burns the eyes smells bad or has black soot or smoke coming out the tailpipe fix that first also.

Mar 21, 2010 | 2000 Ford F350 Super Duty Super Cab

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It sounds like you may have gotten a Tank of Contaminated Fuel. Try to Run a Can of B12 Chemtool through the Fuel Tank and see if it will not Clear up. You can get the B12 Chemtool at Wal-Mart in the Automotive Section or at Your Local Autoi Parts Store.

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1990 Saab 900 performance problem

could be your axigen sensor or your tps trottle position sensor
i also recomend to unplug the maf sensor if it does have one, some cars will idle with maf senseor unplug others not but if by unpluging the maf system dispear the replace maf sensor
(mass air flow)

Jun 03, 2008 | 1990 Saab 900 Hatchback

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