Question about 2001 Mercury Sable

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Numver 3 cylinder misfire 2001 sable

Rough idle at start-up. service code set for number 3 cylinder misfire

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  • Anonymous Jul 24, 2008

    bad plug in cylinder 3

  • Anonymous Mar 15, 2014

    Missing at idle and under power

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  • 96 Answers

Yep, bad plug or wire.

Posted on Nov 28, 2008

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Posted on Jan 02, 2017

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2001 chevy cavalier code po303 how to fix it replaced the spark plugs how to fix it it has a rough idle, weak acceleration ce light starts flashing on acceleration and hard to start


change the ignition coil pack common problem p0303 means cylinder 3 misfire and the coil pack are know to go out on these particular models

Apr 07, 2017 | Cars & Trucks

1 Answer

Cylinder 3 and 4 misfire


Could be a bad cam or crank sensor. But before you go to electronics, ck the plugs, wires & coil or coils (whichever coil system you have) Start with the plugs

Apr 05, 2015 | 2001 Hyundai Santa Fe

1 Answer

I have a reoccurring problem with a flashing check engine light flashing. the code always indicates an engine misfire. I have replaced all coils, wire set, plugs, O2 sensor and cat. The problem...


You need to know if it IS misfiring. Does it shake at idle?
Typically I recommend experienced techs deal with misfires.
the code should say P030x, with the X being the number of the cylinder it believes is misfiring (No, computers arent always right about which cylinder. USUALLY, but not always.)
Lets assume it says CYLINDER 3. (Only your scanner will tell you for sure, 3 is an example we are using for now). You could try disconnecting cylinder 3 ignition coil plug at idle. On a good cylinder that is NOT misfiring, you will hear and feel the engine run rougher and slow down when you unplug its coil or injector. Thats because it WAS contributing until you unplugged it. Your v6 engine idles at say 600rpm warm when its running good. If you unplug any 1 cylinder, youve lost 1/6 of the engine output (actually more due to dead weight drag from that cylinder, but not important for now). SO, if you find the cylinder it says is misfiring, and it loses rpm when unplugged, its probably doing SOMETHING or trying to. If you unplug it and zero change heard or felt, that cylinder is likely dead.

Heres where it gets hard. Could be literally dozens of things that take some familiarity and experience to ID. bad spark, bad fuel mix, bad spark plug, oil fouling, low compression, leaky valves, blown headgasket, leaking intake, EGR leaking at idle, wrong weight of motor oil (some cars) and the list goes on. An experienced drivability tech can usually narrow it down or find it in 1 hour or less. If you are learning as you go, you could take many hours, and still miss things that trained eyes and ears wont.

Start by figuring out which cylinder. If it idles smooth (No shake at idle, and if you clear code and start it and let it idle the light never comes back till you drive over 75 as you stated), then I strongly recommend a professional check it.
If it idles rough and you know which cylinder, you can try taking out that coil and spark plug if you know how, moving them to another cylinder that isnt misfiring, then clear the code and drive it and see if the same code resets or a new code for the other cylinder sets. If the code is the same, you have deeper issues not worth explaining here.
If the code moves to the new cylinder, then 1 or both of the 2 parts you changed are likely at fault. You can replace them an very likely fix the issue.
Again, I strongly recommend professional help. But that may get you started.

Jan 04, 2018 | 2001 Toyota 4Runner

1 Answer

My 2001 oldsmobile aurora is misfiring and sputtering after i replaced the spark plugs?


For engine misfiring problem check the help links mentioned below. Click the link below to go through the troubleshooting procedure :---- Engine misses and truck jumps? Hard to down shift? Issue with high gear only? http://technoanswers.blogspot.in/2012/02/engine-miss-and-truck-jumps-hard-to.html

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Bad miss at idle?

http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

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While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

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Engine Misfire codes for car?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html
Engine Misfire codes?

http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

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Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

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Oil on spark plugs and car misfires?

http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html

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This will help.

Thanks.

Feb 17, 2012 | 2001 Oldsmobile Aurora

1 Answer

I have a 2002mercury sable, idles rough but runs good when acceleration. I changed fuel filter,plugs, plug wires, coil, still idles rough.Autozone had three codes, P0316, P1151, P1131. What should I do...


P0316 crankshaft position sensor, camshaft position sensor, or a wiring issue. Since this code indicates a start up misfire, pay attention to items which may expand or contract when cold (if the code sets when the engine is cold), or hot (if the code sets on a hot restart).

If you have other misfire codes that pertain to individual cylinders, you should attend to them first P1151 has a huge list of things that it can be, But included in that list is the camshaft position sensor , po1131 is the same thing, all building up to your car is running lean , so I'd do the sensor (cam) and check timing,,

Jul 17, 2011 | Mercury Sable Cars & Trucks

1 Answer

Rough Idling with severl codes


SOUND STOP UP FUEL FILTER.WHEN FUEL TANK GET LOW WHEN YOU PUT IN MORE GAS THE SEDIMENT IN BOTTOM OF FUEL TANK GET DISTURB GOES TO FUEL FILTER CLOG IT UP CAUSING LEAN CYLINDERS MISFIRE.

Jul 06, 2010 | 2001 BMW 330

1 Answer

2001 Chevy Cavalier Misfire


Have you made sure your getting spark on every cylinder from the coil pack?

Jun 03, 2009 | 2001 Chevrolet Cavalier

1 Answer

I have a 2001 Ford Escort. It was idling rough and starting to cut out when sitting at stop lights. I changed the plugs and within a week the Check Engine light came on. It is still idling rough but not...


Well the misfire in Cylinder 3 will commonly be that your plug has gone bad. If that is the only code that it is throwing out then it could be an array of things going on. It sounds though that you may have a throttle position sensor out or that you have your idle speed set too low. You will still have great response when gas is applied but sitting at lights the idle will be rough and sometimes bounce up and down.

Feb 23, 2009 | 2003 Hyundai Tiburon

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