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Ford fiesta misfire cylinder 2 sweet smell from exhaust misfire stops at speeds of 60 mpg plus

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Kinda sounds like you are burning coolant. Try pressure testing the cooling system and running the vehicle. Use a five gas analyzer and see if there are hydro carbons in the exhaust. If so then you may have a head gasket leak. :(

Posted on Feb 17, 2014

  • Benjamin Hobson
    Benjamin Hobson Feb 17, 2014

    Hi its me forgot my login so on facebook. I changed the coil my ht leads and plugs are ok.. cyclinder 1,3,4 all fire but 2 has nothing. after that i thought must be head gasket, But there are no sign of it gone or going. , no water in the rocker cover . no overheating, the only think is my water tank is full constantly but water is black, smells sweet so asuming its antifreeze.What if i used a product that seals raditors and head gaskets ,head units ect.... and will it sort the issue out for long or not?

  • Benjamin Hobson
    Benjamin Hobson Feb 17, 2014

    Also only a 1.2 1999... only has 85k on clock!

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

USfalcon
  • 175 Answers

SOURCE: sweet exhaust

its a head gasket blow or head issue like crack or pend so u need to need to do down block test befor u start take the heads parts

Posted on Mar 15, 2009

roniecon
  • 6826 Answers

SOURCE: error code cylinder 2 misfire also did a

It is most likely a valve not closing,check the valve springs on that cylinder.

Posted on Jul 30, 2010

autoacworks
  • 120 Answers

SOURCE: 2004 dodge ram 1500 5.7 hemi. misfire on multiple

sounds like you need an engine my friend or a good mechanic to rebuild that one

Posted on Nov 21, 2010

honeymokey
  • 3113 Answers

SOURCE: 2001 pontiac bonneville exhaust smells sweet like

Probably upper intake manifold leaking. These have no head gasket problems.

Posted on Jan 25, 2011

pctech1
  • 1940 Answers

SOURCE: my ford 2002 escape runs rough. misfire on

Six separate ignition coils:

  • are mounted directly above each spark plug.
  • are controlled by the powertrain control module (PCM) for correct firing sequence.
Crankshaft position (CKP) sensor:
NOTE: Initial engine ignition timing is set at 10 degrees ± 2 degrees before top dead center (BTDC) and is not adjustable.
  • is a variable reluctance sensor triggered by a 36-minus-1 tooth trigger pulse wheel located on the crankshaft located inside the engine front cover.
The PCM uses this information to determine ignition coil turn ON and turn OFF times and misfire detection.

The Misfire Detection Monitor is an on-board strategy designed to monitor engine misfire and identify the specific cylinder in which the misfire has occurred. Misfire is defined as lack of combustion in a cylinder due to absence of spark, poor fuel metering, poor compression, or any other cause. The Misfire Detection Monitor will be enabled only when certain base engine conditions are first satisfied. Input from the ECT or CHT, MAF and CKP sensors is required to enable the monitor. The Misfire Detection Monitor is also performed during on demand self-test.

The PCM synchronized ignition spark is based on information received from the CKP sensor. The CKP signal generated is also the main input used in determining cylinder misfire.
The input signal generated by the CKP sensor is derived by sensing the passage of teeth from the crankshaft position wheel mounted on the end of the crankshaft.
The input signal to the PCM is then used to calculate the time between CKP edges and also crankshaft rotational velocity and acceleration. By comparing the accelerations of each cylinder event, the power loss of each cylinder is determined. When the power loss of a particular cylinder is sufficiently less than a calibrated value and other criteria is met, then the suspect cylinder is determined to have misfired.

Misfire type A:
  • Upon detection of a Misfire type A (200 revolutions) which would cause catalyst damage, the MIL will blink once per second during the actual misfire, and a DTC will be stored.
Misfire type B:
  • Upon detection of a Misfire type B (1000 revolutions) which will exceed the emissions threshold or cause a vehicle to fail an inspection and maintenance tailpipe emissions test, the MIL will illuminate and a DTC will be stored.
The DTC associated with multiple cylinder misfire for a Type A or Type B misfire is DTC P0300.

The DTCs associated with an individual cylinder misfire for a Type A or Type B misfire are DTCs P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, P0309 and P0310.

When the coil is fired by the PCM, spark is delivered through the matched pair towers to their respective spark plugs (in this case, Cylinder 2 & 6 are matched). The spark plugs are fired simultaneously and are paired so that as one fires on the compression stroke, the other spark plug fires on the exhaust stroke. The next time the coil is fired the situation is reversed. The next pair of spark plugs fire according to the engine firing order.

Since there is only a misfire being detected on the Cylinder 6, I would recommend replacing the Coil On Plug for Cylinder 6 and check the wiring for damage for Cylinder 6.

Posted on Jun 24, 2011

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I just bought ford fiesta at the auction it got no power


Most likely it is the manifold converter. If 4 cylinder, you have 1, if 6 cylinder you have 2 manifold cat. converters and probably 1 under car. these do NOT go bad by them self. A misfire in the engine due to spark plugs (motorcraft only) ignition coil, etc....If check engine light on, take it to Auto Zone, etc... and they will scan it for free. Get scan codes.. Po420 and po430 are codes for bad converter. Good Luck

Aug 05, 2016 | 2011 Ford Fiesta

1 Answer

Sputtering car, check engine flash


Stop using the car

You have serious cylinder misfires,so severe
you maybe ruining the exhaust converter,thus the smell

I won't write a book on all the causes or fixes,have a
repair shop diagnose

Dec 10, 2012 | Cars & Trucks

1 Answer

Engine is misfiring


There are few possibilities that can cause engine misfire issues. It can be issue with spark plugs or faulty spark plugs. Also get the compression test done for cylinders. If any of cylinder shows low compression then required, then that particular cylinder will cause misfire.

Also get obd codes scanned, the error code will let you know which cylinder is misfiring or all cylinders are misfiring.

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For your trouble shooting I suggest you to refer the help oinks below. It has step by step details for many engine misfire issues.

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Click the link below:-----


Ford Explorer Cylinder Misfire?

http://whoisbyme.blogspot.in/2012/06/ford-explorer-cylinder-misfire.html

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Engine Misfire codes on Chevrolet Malibu?

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

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Cylinder 6 Misfire?

http://howtobyme.blogspot.com/2011/12/cylinder-6-misfire.html

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Misfire on cylinder 4?

http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.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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Ford Explorer 5.0L: Engine Miss?

http://whoisbyme.blogspot.in/2012/06/ford-explorer-50l-engine-miss.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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Can cylinder misfire Damage the Catalytic converter?

http://schematicsdiagram.blogspot.in/2012/02/can-cylinder-misfire-damage-catalytic.html

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Car misfires and error code P0306 and P0303 is shown?

http://technoanswers.blogspot.com/2012/01/car-misfires-and-error-code-p0306-and.html

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Chevrolet K1500 No spark, random misfire

http://repairhelpcenter.blogspot.com/2012/11/chevrolet-k1500-no-sparkrandom-misfire.html

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2004 Ford F150: Engine Misfire and Lean Code?

http://whatisbyme.blogspot.in/2012/05/2004-ford-f150-engine-misfire-and-lean.html

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1995 Toyota LS: Misfire at idle or low RPM

http://whatisbyme.blogspot.in/2012/04/1995-toyota-ls-misfire-at-idle-or-low.html

--------------

Toyota Corolla: Random Misfire?

http://technoanswers.blogspot.in/2012/04/toyota-corolla-random-misfire.html

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2006 Ford Freestar: Misfire on Cylinder Number 2?

http://whatisbyme.blogspot.in/2012/06/2006-ford-freestar-misfire-on-cylinder.html

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This will help.

Thanks.

Nov 28, 2012 | 2004 Honda CR-V

3 Answers

Hello my mustang is sputtering badly, idles at between 900 and 1000 rpm. has a bad exhaust smell and acts like it wants to stall alot. the oem codes it gave were po303 and po316. what does this mean and...


303= cylinder #3 misfire the 316 is just another code for misfire detected during start up:
I would say buy a new plugs and wires, this will correct the problem, Tim

  • Faulty spark plug or wire
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Running out of fuel
  • Poor compression
  • Defective computer

Apr 25, 2011 | 2002 Ford Mustang

2 Answers

My 1999 Ford Escort LX has a problem with the clutch. It is a hydraulic clutch and a manual transmission. I need a diagram to show where the drain and filler plugs are in the transmission so that I can...


When you remove your gas cap do you have alot of pressure releasing out of you gas cap? Also do you smell it more while your running the a/c or do you smell it as if it where in the car? You might want to see if the fuel pump gasket was replaced when you had the new gas tank installed or possibly check under the hood for injectors or the pressure regulator. Please let me know if there is anything else I can help with.

Aug 15, 2010 | 1999 Ford Escort

1 Answer

1997 cadillac deville- misfires on cylinder #1 when cold and starting up, and also when hot and left off for a few minutes, and then restarted. Runs rough for 15 seconds or so, and then the problem goes...


It sure is. If a plug is truly wet, the energy for the spark will travel through the moisture, rather than across the gap. The fuel air mixture flowing into and out of the cylinder serves to ventilate the cylinder, drying the plug.

Plus, that air is preheated, so that would accelerate the drying once warming up got underway.

You really need to have that head gasket replaced. If this questionable repair gives way (and it almost certainly will), you can get enough water in the cylinder to start breaking things on startup without any warning.

Jun 29, 2010 | 1997 Cadillac DeVille

1 Answer

I have a 2002 Ford Ranger XLT pickup. During the holiday the truck sat idle for seven days. When I started it up again, the check engine light came on and truck would shudder while idling. And when I press...


The flashing engine light gives it away, it has a engine misfire. It needs to be checked with a scantool to see which cyl is misfiring, then see what is causing it, bad coil, injector, ect.

Jan 09, 2010 | 2002 Ford Ranger Regular Cab

1 Answer

Ford fiesta diesel endura turn's over & try's


Normally, only 2 things stop a diesel from firing:
1. no fuel
2. not enough compression

No fuel can be caused by (obviously no fuel) or a failed fuel pump. To test, have someone turn the engine over and then sniff at the exhaust - does it smell of unburned diesel? (If you've run out of diesel recently, you may have an airlock in the system, this needs bleeding out.)

Not enough compression needs specialised equipment to test - that's a garage job.

Dec 29, 2009 | Ford Escape Cars & Trucks

2 Answers

Sweet exhaust


possible blown or leaking head gasket there is a quick fix "bars stop leak" and other products on the market, I recommend replacing gasket as soon as possible

Mar 15, 2009 | 2002 Dodge Ram Maxi

1 Answer

4jb1 engine


I can tell about a couple of odors from oils that are quite indicative of the places where they oil is leaking into the exhaust though.

You've got a few internal places where oil can get into the engine and even some can get into the combustion chambers. They have distinctive odors and can really help diagnose the cause or reason for the oil consumption.

First let's start with the "sweet-smells".

This means that the oil have gone through the combustion process along with the engine's fuel (gasoline or diesels too!). It is about the same smell you get whiffing the exhaust on a 2-cycle engine with gas-oil premix.

Places where this CAN happen:

1) Cylinder walls ie; piston rings, worn or broken.
2) PCV system where the oil is sucked into the manifold under vacuum and is entrained into the combustion chamber in the normal air-flow to the engine for combustion.
3) Intake runner-to-head surface gasket(s) where the intake can actually **** oil from the cam tray area or the inner valley between the heads and the intake manifold.
4) Occasionally from changing spark plugs in "well" type plug chambers that let the plug get very close to the head through the head casting. Taking a plug out and letting the collected oil fall into the cylinder is usually a temporary situation, but can scare you when it happens.
5) Cracked head or blown head gasket: this usually has to happen where the head has a high pressure passageway for the oil to travel through the head to get to a cam tower on top of the head.
6) Now - here's something that's gonna get debated, fer sure! ONLY the intake valves can leak past their stem seals and allow oil to travel down the stem onto the combustion process. Remember that I am speaking or "sweet" oil smell here.


Now some of the "not sweet" or bitter oil smell:

1) Exhaust guides or stem seals on the EXHAUST valves ONLY can cause a very acrid smell of nasty, eye watering and cough-inducing stink.
2) CVCC or pre-combustion chambers can also cause this problem. The Honda CVCC engines were notorious for this! The auxiliary valve can leak oil into the pre-chamber and then it opens the valve and dumps the burning mess into the main cylinder head area and the results are a bad BAD stink and lots of white/blue smoke.
3) RARELY...very rarely the exhaust port AFTER the exhaust valve seat can become perforated and allow oil to get into the exhaust stream. It does NOT burn here - rather it just cooks-off with a very bad smell.

So-o-o-o

Acrid oil smell
- the oil has NOT gone through the combustion process in the cylinder head but is rather "cooked" into a stinky odor. It may or may not smoke too much too.

Sweet oil-burning smell - oil that has been burned as part of the combustion process in the combustion chamber on one or more or even all cylinders.

Sep 16, 2008 | 1993 Isuzu Trooper

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