Question about 2007 Lincoln MKZ

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Mkz is rough idling, bucking and surging in cruise, showing misfire on cylinder 6 ?

Posted by Anonymous on


5 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017

66 chrgr
  • 1011 Answers

SOURCE: I have a 83' lincoln Mark 6 with a 302 V8 and a 2

put a throttle position sensor on the throttle boby this should fix the problem!

Posted on Feb 22, 2009

michigan man
  • 3533 Answers

SOURCE: 2001 lincoln ls v8,rough idle and misses under load

you may need to check the cowl pack that sits on top of the plugs and check all of your vaccum lines give these websites a try and if all fails stop by your local library and get your hands on a Haynes auto repair manual for your car wish you the best of luck Michigan Man.

Posted on Mar 05, 2010

SOURCE: 2003 lincoln navigator idles rough. had cylinder 6

I once owned a trans repair shop-
if your trans fluid was in any way other than
pink,your trans may as well come out
and be rebuilt

You have coil misfires as you know,several shown,
most likely only 1 real bad one.

You have O2 sensor codes as well as MAF

The only issue you have is to find the bad
You can't do that buy the codes you have
You have to walk a new coil till you find the
really bad one or get professional help
Don't count on them getting it right

After the misfire and coil issues are solved
there are other thing that can be looked into

I could fix this for you but that's not an internet

I definitely would stay away from a dealer.

Why was the trans let go until the fluid was
Not to be hurtful -but it is a well known fact
for decades, that trans fluid and power steering
fluids get changed every 30,000 miles on ALL
vehicles and never past 3 years.

Wish I could have been there sooner, before you
got it or since.

Posted on Feb 12, 2011

SOURCE: Misfire in cylinder 6. chaned

Plugs get changed at 70,000 miles
I would suggest that you use the OEM
Plugs,they are made by NGK and are special
on my 2004 LS,I don't know about yours.

Clean the MAF Sensor with the CRC Product
for that

Change the 2 front O2 Sensors at 100,000 miles

Check fuel pressure at the fuel rail on engine

The coil you replaced on #6 ,even though you
have a PO306 Code,doesn't mean that was the
bad one. It is a COP Coil or Ford thing, you will
learn as you get involved with them

In some cases, you buy 1 new coil and walk it
from one cylinder to the next.

On single coil codes, you may get lucky,on multiple
codes or a really bad coil you won't

Your not using any fancy test equipment and
unfortunately a lot of repair shops have it and
don't know how to use it,including dealers

V6 or V8 ?

Posted on Feb 25, 2011

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2 Answers


Misfire in cylinder #6. Could be bad spark plug, spark plug wire, cop coil, bad intake/exhaust valve, clogged fuel injector or piston/cylinder problem. What's the year, make, model, engine and have you been following the recommended maintenance schedule for new plugs?

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Rough idle, acceleration and check engine light went from being on to flashing on and off

Use a ODB-2 meter to read the problem code. That will give you a clue on what to look for next.

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Engine runs rough

misfire 3.5L V6
those disconnects, each , will slam the PCM into limphome mode.
you need your own $9 scan tool,
pulling the sensors, only stores DTC codes. that only hide there real ones.
next time you pull a sensor, use the scan tool and reset the PCM.
clearing all codes, then drive and see what fails.
imagine a sick patient in hospital bed and you cutting lines to the person.
you cant fix cars with no scan tool and 100x that , if intermittent.
cant. (i can, but have voltmeters and such that can log data)
running good before, , all cars do that even new. they all run
what counts when its bad.
so connect the scan tool and log the sensors, and see
what DTC pops first. and see all the sensor data.
bank1 OXY sensor 1 heaters is bad. (or wires to it melted)

on some cars , if the heater shorts, it will take out other sensors
here ill look yours up in
the heater runs off 12vdc, and the current is monitored by the PCM.
id fix this first, (after all , its bad, fix it)
P300, is all 6 misfiring, that is most likely bad fueling, too rich or way to lean.
the OXY B1S1 short will short the C436 power bus, and maybe
slam B1 full rich,

C436 runs many other things that need power, so if it shorts.
all bets OFF !! all black-yellow wire power feeds.
it runs PCM pin E1, ,EGR, fuel press.reg.sol. , intake air bypass #1 and 2. and screws up altternator pin1 (96 only)

yah, B1S1 , new, and if wires burnt there , fixed.

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2003 cadillac cts 3.2 liter..rough idle, scan tool shows misfire on bank 1, cylinders 1,3,&5. only at idle, scan tool also showed a cam postion sensor code. cam position sensor changed. no change in...

Did you ever find a solution to this? I am having the same issue on 2,4,6. I have replaced the coils. checked the intake for vacuum leaks. I am lost here let me know if you find anything and I will do the same.

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1 Answer

1998 Chev Astro 4.3L AWD. Rough idle & misfire Cylinder 6

Hi, the 4.3 liters have an injection system on them that can leak and will show up as a misfire. it is common but elusive to find. you might consider taking the van to a repair shop to have the problem diagnosed and go on from there.

May 22, 2010 | 1998 Chevrolet Astro

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Engine code 306 on a 2005 stratus with a 2.7 engine. i replaced plugs but still idles rough.

This code is for cylinder #6 you have a coil that is bad on that cylinder

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Cylinder 6 misfire when scanned, check engine light on

May be a hyd. lifter problem, should check compession and that should lead you in right direction, let me know if I can help.

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Engine missing, particularly in idle, or dies when turning

The intake gaskets leaking would cause the engine to have a misfire. Get a can of Brake Clean and spray in around the intake manifold on the top of the engine while the engine is running. The engine idle will go up or down if there is a leak. Also try swapping the spark plug with another spark plug to see if the misfire moves to another cylinder. If it moves then you have a bad spark plug. I hope this helps.

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