Question about 2001 Ford Escape

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What are the symptoms when the ignition coil of a vehicle is affected?

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There will be a check engine light on, possibly flashing, and a code for a specific cylinder(s) misfire. The engine will also usually run really rough.

Posted on Oct 13, 2010

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Posted on Jan 02, 2017

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Error Code P0351 for a 2005 Toyota Avalon


Possible causes
Faulty Ignition Coil 1
Ignition Coil 1 harness is open or shorted
Ignition Coil 1 circuit poor electrical connection
Faulty Engine Control Module (ECM)

What does this mean? When is the code detected? Each ignition circuit is continuously monitored by the Engine Control Module (ECM). The test fails when the ECM does not receive a valid pulse signal from the ignition coil. Possible symptoms Engine Light ON (or Service Engine Soon Warning Light) Lack/Loss of Power Engine may be harder to start Engine hesitation Rough engine idle P0351 TOYOTA Description: The ignition system on the vehicle uses individual ignition coils for each cylinder. The Engine Control Module (ECM) controls each ignition coil operation. The ECM sends a ON/OFF signal to energize the ignition coil to create a spark at the spark plug when a spark is required at the cylinder.

May 29, 2017 | Toyota Cars & Trucks

1 Answer

MITSUBISH LANCER ONE IGNITION COIL (BLACK/GREEN) NOT WORKING BUT SOMETIMES IT WORKS BUT AFTER STOPING THE ENGINE IT DOESNT RESTART


Evison: According to DoItYourself.com: " If your vehicle is behaving erratically and you have problems with it running smoothly, it could be showing signs of ignition coil failure. The ignition coil takes power from the generator and relays it to the spark plugs. This ignites the fuel and makes your vehicle run. The severity of the symptoms vary according to which of the ignition coils are failing.
Backfiring If your vehicle is backfiring, this can indicate early symptoms of a failing ignition coil. This occurs when unused fuel is emitted through the exhaust system. If you do not address the issue, you can also do serious damage to your exhaust, resulting in unnecessary and costly repairs. Your exhaust may emit a black smoke and you may even detect the smell of gasoline.
Starting Problems Check your high tension leads (HT Leads). These run between the distributor and spark plugs. Ignition coil failures result in one or more spark plugs not receiving the appropriate amount of charge. If you have trouble starting your vehicle in the cold, this is a good sign of potential ignition coil failure. You can run a simple test on the HT leads to check that there is in fact a spark going from each lead to each spark plug.
Fuel Economy If your vehicle is getting a lot less mileage for the gallon, This can also be a sign of ignition coil failure. When less power is reaching the spark plugs, your vehicle will struggle and use more fuel to compensate for the lack of power transfer.
Engine Misfiring Trying to start your vehicle when the ignition coils fail will result in a rough ride. Your vehicle will cough and splutter regularly and when you drive at higher speeds, your vehicle will jerk and spit. It will also vibrate when you are running idle at a stop sign or intersection.
Vehicle Stalling With ignition coil failure, your vehicle will have irregular sparks emitting to the plugs to keep it running. This will result in stalling. When you bring your vehicle to a stop, it may just shut off totally, thus leaving you needing to restart it.
Coil Failure If your spark plugs are worn out, it forces the ignition coils to operate at a much higher output. Keeping your sparks plug in optimum condition can reduce your chances of having ignition coil problems. Some simple regular maintenance will save you a lot of money in the long run.
If the gap in your spark plug widens due to normal erosion, it leads to an increased voltage being required to create a spark in the chamber. That increased voltage demands more current flow through the primary circuit and this increased current flow can overload the primary transistor. Keeping all these components in good running condition is also a big help towards keeping your coils in a good working condition."

May 25, 2015 | Mitsubishi Lancer Cars & Trucks

2 Answers

Still having problems will not run good. 1997 ford 2.0 escort;new plugs&wires coil;fuel pump still codes 0351;


From a reputable repair website:


P0351 - OBD-II Trouble Code

Auto Systems and Repair

Ignition Coil "A" Circuit Primary/Secondary Malfunction Our emissions expert has put together the following information about the P0351 fault code. We have also included diagnostic procedures you can take to your repair shop if the mechanic is having difficulty analyzing the code.
OBD II Fault Code
  • OBD II P0351 Ignition Coil "A" Circuit Primary/Secondary Malfunction
What does this mean? The ignition coil or coils are responsible for igniting the air/fuel mixture inside the combustion chambers. Without reliable performance from the ignition coil(s) the vehicle will stumble and misfire.
Code P0351 indicates there's an electrical problem in either the primary ( the computer side ) or the secondary ( the spark plug side ) of the Ignition Coil "A" Circuit.
Symptoms
  • Check Engine Light will illuminate
  • Engine idles rough
  • Engine misfires on acceleration
  • In rare cases, the engine may not exhibit noticeable symptoms
Common Problems That Trigger the P0351 Code
  • Defective Ignition Coil(s)
  • Defective Spark Plug(s)
  • Intake Manifold Vacuum leaks
  • Carbon buildup in the Throttle Body air passages
  • Defective Idle Air Control Valve or Electronic Body
Common Misdiagnosis
  • Ignition coil(s) replaced when cause of the malfunction was a vacuum leak
  • Spark Plugs replaced when cause of the malfunction was a vacuum leak

Dec 21, 2014 | Ford Cars & Trucks

1 Answer

Cant get any spark from my coil packs on a 2005 2.7 honda santFe


1st off You have a HYUNDIA SANTE FE not a HONDA so check that you have the correct parts first.

Checking spark on these vehicles requires a special tool which shows the arc in line with the coil and plug.

An important point to keep in mind with respect to all types of ignition coils is that when the magnetic field collapses, the high-voltage surge has to go someplace. If it can't go to the spark plug, it will find another path to ground - which may be back through the ignition module, PCM driver circuit or through the insulation inside the coil itself. This can be very damaging to these parts. So never disconnect a plug wire or COP coil while the engine is running. It can be very damaging as well as dangerous to you should you become the path to ground. When a coil failure occurs on a distributor ignition system, it affects all of the cylinders. The engine may not start, or it may misfire badly when under load. But with multi-coil ignition systems, a single coil failure will only affect one cylinder (or paired cylinders in the case of waste spark DIS systems). 20406.gif On 1996 and newer vehicles, the OBD II system should detect coil problems as well as misfires and generate fault codes that identify the problem coil or cylinder. A misfire code P0301, for example, would indicate a misfire problem in cylinder #1. Of course, misfires can be caused by a lot of things. It could be a worn or fouled spark plug, a weak coil, a bad plug wire or connection in the case of a DIS or CNP system, a dirty or dead fuel injector, or a loss of compression (burned exhaust valve or leaky head gasket). Further diagnosis is always needed to isolate and identify the cause - which creates a problem on multi-coil systems that do not have spark plug wires because you can't observe the secondary ignition pattern unless you use some type of adapters or inductive pickups that fit on the coils themselves.
\ These also have ignition failure sensors that stop the spark if they sense a problem, like when you arc the cil to the block.

This is a very common problem with these vehicles they have a recall on some of them, check the hyundai web site for more info.

Oct 30, 2014 | Cars & Trucks

1 Answer

After receiving a tune up on my 4.2 cylinder 2003 Trailblazer 1 ignition coil is misfiring. It wasn't before the tune up. Why


There is little to tune up on this vehicle which would affect the ignition coil. The vehicle's ECU manages tuning functions.
Try replacing the ignition coil. This will not likely be an issue caused by regular maintenance unless the coil or wiring was damaged when attempting to remove the vehicle's spark plugs or leads.

Nov 01, 2012 | Chevrolet Cars & Trucks

1 Answer

2000 MAZDA 626 IGNITION SWITCH


I have the exact make, model, year in the repair shop right now with the same symptoms. Horrible screeching noise after starting the vehicle, and smoke coming from the ignition area. Most likely it is a short in the ignition switch. It could have also affected the starter module but I would start with the ignition switch.

Jun 22, 2012 | Mazda 626 Cars & Trucks

1 Answer

Cranks but won't start



Trouble Code: P0300

Multiple Cylinder Misfire Detected
Possible Causes:


Air leak in the intake manifold, or in the EGR or EVAP system Base engine mechanical fault that affects two or more cylinders Erratic or interrupted CKP or CMP Sensor signals Fuel delivery component fault that affects two or more cylinders (i.e., a contaminated, dirty or sticking fuel injector)


Trouble Code: P0302

Cylinder 1-10 Misfire Detected
Possible Causes:


Air leak in the intake manifold, or in the EGR or EVAP system Base engine mechanical fault that affects only one cylinder Fuel delivery component fault that affects only one cylinder (e.g., a dirty fuel injector)


Trouble Code: P0305

Cylinder 1-10 Misfire Detected
Possible Causes:


Air leak in the intake manifold, or in the EGR or EVAP system Base engine mechanical fault that affects only one cylinder Fuel delivery component fault that affects only one cylinder (e.g., a dirty fuel injector)


Trouble Code: P0351

Ignition Coil No. 1, 2 or 3 Primary Circuit
Possible Causes:


ASD relay power circuit to the ignition coil is open Ignition Coil No. 1, 2 or 3 primary "driver" circuit open or grounded Ignition Coil No. 1, 2 or 3 is damaged or it has failed


Trouble Code: P0352

Ignition Coil No. 1-8 Primary Circuit
Possible Causes:


ASD relay power circuit to the ignition coil is open Ignition coil primary "driver" circuit open or grounded


Trouble Code: P0353

Ignition Coil No. 1-8 Primary Circuit
Possible Causes:


ASD relay power circuit to the ignition coil is open Ignition coil primary "driver" circuit open or grounded Ignition coil is damaged or it has failed PCM has failed Ignition coil is damaged or it has failed PCM has failedPCM has failed Ignition system problem (coil or plug) in only one cylinder Ignition system problem (coil or plug) in only one cylinder Ignition system problem (coil or plug) in two or more cylinders Vehicle driven with low fuel pressure or while very low on fuel

Jun 06, 2012 | 2001 Jeep Wrangler

2 Answers

Not getting spark


need more info (need to know what type of ignition system your vehicle has: (1) traditional ignition coil /distributor system, or (2) electronic ignition, but lack of spark problems are usually a faulty coil
on traditional vehicles, and on the newer electronic ignition cars, total lack of spark would be
a faulty ECM (electronic control module) - partial lack of spark (diagnosed with a HEI (high energy ignition) spark tester kit), would be caused by a faulty coil pack (in the waste spark system), where
there's 1 coil pack for every 2 spark plugs.
I bought my HEI igntion testere kit for $20, but Harbor Freight sells a similar unit for $10.
Hope this helps.

Dec 27, 2010 | Ford F-250 Cars & Trucks

1 Answer

99 Honda Accord EX V6 check engine light comes on and blinks ten times when I start the car along with the SRS light being on for a short period of time. The other problem has been the car shutting off...


Your vehicle may be part of a 2002 honda/acura recall. Faulty ignition switch!! Typical symptoms are: Random stalls, hard start, no spark, power loss (symptoms progress in hotter weather). When the vehicle stalls/shuts off while in motion, usually the speedometer drops to "0" while in motion. Some warning light not lit when ignition is set to "on" (chk engine/ABS/Brake etc.). Call your local dealer with your VIN# on hand and check if your vehicle is part of the recall. Refer to faulty ignition switches, affected years (1998-2002 models), accords/preludes/pilot/Odyssey/Civic/CR-V and various Acura models.

Oct 01, 2010 | 1999 Honda Accord

1 Answer

2.7 misfiring


Here are some commons causes, hope this helps.

Air leak in the intake manifold, or in the EGR or EVAP system
Base engine mechanical fault that affects one or more cylinders
Erratic or interrupted CKP or CMP sensor signals
Fuel delivery component fault that affects one or more cylinders (contaminated, dirty or sticking fuel injector)
Ignition system problem (coil or plug) in one or more cylinders
Vehicle driven with low fuel pressure or while very low on fuel

The passenger side front cylinder is #1.

Jan 28, 2009 | 1999 Dodge Intrepid

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