Question about 2008 Mercury Milan Premier

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2008 mercury Milan premier-po356-missing # 6 cylinder no voltage to spark plug coil what controls voltage to coil

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Unless yours is different from most, there is an ignition module which can fail in several ways, and is a common failed item. Failed wiring to coil also possible.

Posted on Apr 29, 2015


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2006 grand prix gxp 5.3. When you are driving normally it will miss from 50mph and up. When you punch it it doesn't miss a beat. I cleaned the maf sensor and air filter, Plugs were replaced.

It's probably a coil breaking down , have a scan tool hooked up an have misfires checked to see which cylinder is missing .
Ignition Coils
Each ignition coil has an ignition 1 voltage feed and a ground. The engine control module (ECM) supplies a low reference and an ignition control (IC) circuit. Each ignition coil contains a solid state driver module. The ECM will command the IC circuit ON, this allows the current to flow through the primary coil windings for the appropriate time or dwell. When the ECM commands the IC circuit OFF, this will interrupt current flow through the primary coil windings. The magnetic field created by the primary coil windings will collapse across the secondary coil windings, which induces a high voltage across the spark plug electrodes. The coils are current limited to prevent overloading if the IC current is held high too long. The spark plugs are connected to their respective coils by a short secondary wire. The spark plugs are tipped with iridium for long life and efficiency.
Drive it long enough like that (with it misfiring ) the check engine light will flash . This is to warn that a catalytic converter damaging event is taking place . This would also set a DTC - diagnostic trouble code
DTC Descriptors ?€¢
DTC P0300 Engine Misfire Detected

DTC P0301 Cylinder 1 Misfire Detected

DTC P0302 Cylinder 2 Misfire Detected

DTC P0303 Cylinder 3 Misfire Detected

DTC P0304 Cylinder 4 Misfire Detected

DTC P0305 Cylinder 5 Misfire Detected

DTC P0306 Cylinder 6 Misfire Detected

DTC P0307 Cylinder 7 Misfire Detected

DTC P0308 Cylinder 8 Misfire Detected

Apr 26, 2016 | Cars & Trucks

1 Answer

2007 Mercury Milan Premier V6 Misfiring

P0300 - Random multiple cylinder misfire
P0301 , 302 and 304 - Cyliners 1, 2 and 4 misfire
P0351 - Ignition coil A primary/secondary circuit malfunction
P0354 - Ignition coil D primary/secondary circuit malfunction

Nov 07, 2013 | Mercury Milan Cars & Trucks

1 Answer

I have 56000 on a 2008 Mercury Milan and my check engine light is on. Coil #4 has been replaced and still having problems.

What problems-cylinder misfires

Just because #4 coil was replaced,
does not mean you got all the bad
ones or that #4 was bad

Apr 02, 2013 | 2008 Mercury Milan

1 Answer

2008 mercury milan misfires

take it back to the dealer they didnt install the coil or electric distubutor properly because of the misfire its causes o2 sensor to give bad reading .

Apr 26, 2012 | Mercury Milan Cars & Trucks

1 Answer

I stepped on the gas the car took off then immediatley slowed in power. The engine light came on and started blinking. I could drive the car, but only at slow speed. 2007 Mercury Milan V6. Any ideas

when the check engine light blinks this is a sign of misfires but your going to need a scanner to determine which cylinders misfired and clear fault memory i would then recommend swapping coils and plugs from cylinders that misfired with ones that didnt and see if misfires migrate to determine bad coils or plugs

May 12, 2011 | 2007 Mercury Milan V6 AWD Sedan

2 Answers

How many spark plugs are on the mercury milan 2007. I only found 3.

For 2007 Mercury Milan 3.0L SFI DOHC 6cyl the upper intake manifold must be removed to access the RH spark plugs only.
  1. Remove the upper intake manifold, if removing the RH spark plugs. Refer to the Intake Manifold procedure in the Engine Mechanical Section
  2. Disconnect the 6 ignition coil-on-plug electrical connectors.
    NOTE When removing the ignition coil-on-plugs, a slight twisting motion will break the seal and ease removal.
  3. Remove the 6 bolts and the 6 ignition coil-on-plugs.
    WARNING Only use hand tools when removing or installing the spark plugs, or damage can occur to the cylinder head or spark plug.
    NOTE Use compressed air to remove any foreign material in the spark plug well before removing the spark plugs.
  4. Remove the 6 spark plugs.

To install:
  1. Inspect the spark plugs, as outlined in this section.
  2. Inspect the 6 spark plugs.
  3. Adjust the spark plug gap, as necessary, to 1.32-1.42mm (0.052-0.056 in.).
    WARNING Only use hand tools when removing or installing the spark plugs, or damage can occur to the cylinder head or spark plug.
  4. Install the 6 spark plugs. Tighten to 15 Nm (11 lb-ft).
    NOTE Apply a small amount of dielectric grease to the inside of the ignition coil-on-plug boots before attaching to the spark plugs.
  5. Install the 6 ignition coil-on-plugs and the 6 bolts. Tighten to 7 Nm (62 lb-in).
  6. Connect the 6 ignition coil-on-plug electrical connectors.
  7. If removed, install the upper intake manifold

Hope helps.

Mar 07, 2011 | 2007 Mercury Milan V6 AWD Sedan

1 Answer

Check engine light on code po356 / What does the code reflect?

This is Code for the primary and secondary coil wires. It refers to Cylinder #6. Check to see how much voltage you have by taking off the coil wire on #6 cylinder and turn on the Ignition. Then use a Voltmeter, one wire will be hot and one wire will ground when the brain tells it to fire. You should have Battery voltage.

If you have Battery voltage check the coil with an Ohmmeter with the power wire off. The top of the coil should have less than 5 OHMs resistance and the bottom of the coil, measure from one prong of the top coil to the bottom of the coil should be 10,000 Ohms or more. If either reading is off, then replace the coil. If you still are not showing a problem, replace the plug.

I hope my solution is helpful to you.

Feb 03, 2011 | Ford F-150 Cars & Trucks

1 Answer

Replace spark plugs on a 2008 4 cylinder tribute

This is a fairly easy job. Do each cylinder one by one (removal and install), make sure to reinstall the coil on the same exact cylinder (DO NOT MIX UP). 1. Remove coil retaining scre 2. Pull upward on the coil to remove. 3. Remove spark plug (using a spark plug socket). 4. Properly gap new spark plug (if applicable). 5. Apply sprark plug anti-seize compound on plug threads. 6. Install plug. 7. Aplly coil boot grease on the coils' rubber boot tips. 8. Reinstall coil.

May 22, 2010 | 2008 Mazda Tribute

3 Answers

2007 Mercury Milan problem on ignition coil #2.

always give the code so a pro with the diagnosic charts can actually help, without the code its anyones guess

Feb 03, 2010 | 2007 Mercury Milan V6 AWD Sedan

1 Answer

I need to know the timing sequence for a 1998 Mercury Mystique 2 liter

ignition timing or valve timing?

ignition timing not setable.

The ignition system consists of an ignition coil, spark plug wires and spark plugs.
The crankshaft position sensor signal is the basis for ignition timing calculations. The alternating voltage signal from the crankshaft position sensor is digitized by the powertrain control module. This digitized signal is then used to position the closing time of the primary circuit of the ignition coil.
Ignition angle is determined by the powertrain control module in response to engine operating conditions. Once ignition angle has been determined, the powertrain control module interrupts the current to the primary circuit of the ignition coil thus triggering the ignition spark which is supplied to the cylinders through the spark plug wires and spark plugs.
The ignition coils are triggered by the powertrain control module in pairs (cylinders 1 and 4 and cylinders 3 and 2) sending one ignition spark to the firing cylinder and one ignition spark to the corresponding cylinder on the exhaust stroke. This make sures that any unburnt fuel residues remaining in the cylinder on the exhaust stroke are re - ignited to provide cleaner exhaust emissions.

May 06, 2009 | Mercury Mystique Cars & Trucks

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