Question about 2001 Kia Optima

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Engine code miss fire cylinder #1, spark plugs and wires replaced. Possibly coil pack is problem? Kia Optima 2001 4 cylinder

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  • Kia Master
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Your correct the coil pack is probably the culprit

Posted on Aug 08, 2010

  • ronjohnston2 Nov 18, 2010

    I am having the same issue with a 2001 kia optima and did a full tune up, fixed exhaust leak. Mechanic told me 2 days ago its the coil pack. car has 140k.

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My 2004 Kia Rio w/161,000 miles is missing on the #1 and 4 cylinders. I've had the ignition coil, spark plugs, spark plug wires replaced, yet the problem persists. Sometimes, the car runs good for a f


The car computer does the firing of the spark plugs based on info provided to it by various sensors in car. Your mechanic is spot on. Ouch!

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1 Answer

I need to know what the spark plug wire firing order is on a 2001 KIA Optima V6 2.5L


Most gasoline six cylinder engines fire in sequential order: 1, 2, 3, 4, 5, 6. And most cylinders are numbered the same. Looking at the engine from the front of the vehicle. The left cylinders are old starting at 1 closest to you and in sequential order. The right cylinders are even starting at 2 closest to you and in sequential order.

Nov 02, 2011 | 2001 Kia Optima

1 Answer

1998 pontiac firebird coil pack, will coil make it miss on 1 cylinder, 3800 engine, misfiring, have changed plugs and wires


yes, it can happen. check for spark from the number one coil using spark plug wire and hold it near a grounded point. it should be a consistent spark with engine running. compare to different coil wire for verification. those coil packs are partially replace able because each coil fires two plugs. replace the no.1 portion with a new one from parts store. 28.00

Jun 21, 2011 | 1998 Pontiac Firebird

1 Answer

What is a firing order


This is a quick explanation:

1996 Dodge Caravan
3.3 liter


c17hydro_162.gif

The big rectangles are referencing the engine, the cylinder associated to it's "firing" are the colored circles, and the are also the location of the spark plugs....the smaller lego-looking block is your coil pack. The spark plug wires run from the coil pack to the spark plug on the engine. The wires match 1 to1 or black to black...and so on....

When these are matched to each cylinder/spark plug and it's wire leading to the matching coil pack position, this is it's "firing order". If one of the wires is "crossed" meaning, not 1 going to 1, then the engine will "miss-fire".

May 07, 2011 | 1996 Dodge Caravan

1 Answer

I have a miss fire and the codes read thats its cylinder 1 and 2


Most common issue is the spark plug wires and spark plugs are fouled out start by replacing and if the car is still doing the same thing its a coil pack for 1 and 2

Nov 30, 2010 | 2001 Ford Taurus

1 Answer

2004 KIA OPTIMA WON'T START AFTER SPARK PLUGS WERE CHANGES


HI. There are several areas of concern here. I will list them below. Check all areas stated in the list for faults.

Possible cuases:

1. Incorrect firing order set. On the 2.0, 2.4 and 2.7 engines. These engines are equipped with a distributor-less ignition system. This system incorporates a coil pack assembly, along with wire sets. In order for the assembly to fire correctly, the order of the wires must be set to the proper sequence. if not, the engine will not turn over, or start correctly. Make sure your firing order is correct, and make sure you have not placed a particular wire set into the wrong cylinder. I will post a picture of the correct firing order for your engine, below this list, shortly.


2. Incorrect spark plug gapping procedure. If the new spark plugs were gapped incorrectly, this will not allow for proper spark, thus, preventing optimal combustion, due to lack of fire. Check the spark plug gap using a wire gap gauge, and adjust if necessary. The gap should be 0.039-0.043 in. (1.0-1.1mm)

3. Failed coil pack assembly. This will be the worst case scenario. The coil pack supplies the necessary current that fuels each plug. The current is transferred, via wire sets.This will be the culprit if all the above areas are proven to be operational, and in good shape.

4. Failed wire sets. Replace the wire sets if faults are found at the connector at the ignition coil pack, or at the plug boot.



NOTE*
In order to provide the correct firing order for your engine, i will need the engine size and liter information, if possible. Please post this information, asap. Thanks..

Mar 24, 2010 | 2004 Kia Optima

2 Answers

2001 Kia Magentis engine missfiring , installed


check new spark plugs for proper gap.
It may have gotten hit when installing it.check coils second for resistance/firing. sometimes one bank will work fine and the other side will misfire-always replace all together or as a unit. Check
engine for compression if problem pre existed
and check for low compression. if 1 cylinder
has 120 psi and two havepsi below 90 you may have
a cracked head or bad head gasket.

Feb 10, 2010 | 2001 Kia Optima

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