Question about Saturn SL2

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My car has a rough start idles real high and consumes alot of gas and theres black smoke

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Sounds like a map sensor to me

Posted on Dec 31, 2010

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We just purchased a 2002 Ford Escort. Tonight, when starting the car, it ran very rough and then died. We started it again and it ran fine after that. It has happened twice and it has only happened when...


Could be a idle air problem. The injector could be leaking when you shut it off ..Try some injector cleaner see if it gets better..The idle air shouldnt run rough just idle real low or sometimes it will get stuck and idle high....Are you losing any antifreeze..If you are the 2.0 SOHC engine bad about leaking antifreeze into the cylinder and makes the engine run rough until it burns it out..See if you can see the smoke coming out when it happens..White smoke indicates antifreeze,,Black smoke indicates fuel..

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Car starts but smokes real bad and rough idle,code saysmiss on number 1 and 5 changed plugs and wires no help 2001 grand am gt 6 cyl


if its white smoke look for coolant getting into the cyls, black smoke could be leaking injectors

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Idling up and down between 1200 and 800 rough idle 2002 saturn sl


oooooooooooo my friend white smoke mens head gasket is gon sorry

Dec 11, 2009 | 2002 Saturn Sl

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My Mazda starts rough and idles real rough with black smoke and smell of gas after warm runs great


Dear Smoker.......Sounds to a trained ear that this little guy is gonna need a fuel pressure regulator. It is basically dumping an excessive amount of fuel with the black smoke and all and once it gets warmed up it runs a little better cause it's out of the closed loop cycle. Check the fuel pressure regulator...pull the vacuum line off of it and if you can smell gas or see gas drippin out....that regulator is junk!!! The pressure regulator is on the fuel rail on top of the motor by the way...this should cure your woes.....if not..please get back to me... I HOPE I COULD HELP!!!

Nov 16, 2009 | 2001 Mazda Tribute

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Black smoke when i start engine, very rough idle.


sounds like possible a sensor went bad or is loosly connected. O2 sensor??? Also check the air filter. Sounds like whatever it is, is making the truck run rich----that would be the black smoke.


Hope this helps

Aug 08, 2009 | 1999 Ford Super Duty F 450

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Hi I have a 1992 silverado with a 350,hard to start.


When it runs really rough is there alot of black smoke? Could be the fuel pressure regulator diaphram, real easy to change on that TBI...

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Rough Idle, and Black exhaust smoke.


coolant temperature sensor boken, check and replace if defective.

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Fuel leaks from tailpipe,with smoke while running.


Bad injector first, or bad intake gasket, then damaged head. Good Luck contact me if you need more help. Its has to one of the above.

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Black smoke, using alot of petrol, no loss of power, funny smell


MASS AIRFLOW SENSOR THERE ABOUT £6O WHEN THEY PLAY UP THE CAR WONT IDLE PROPERLY AND POOR RUNNING/HESITATES BEFORE IT PICKS UP AGAIN, NOT SURE ON THE BLACK SMOKE THOUGH, GOOD LUCK .

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