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2009-10-04 08:18:27
2009-10-04 08:18:27

Bad plugs, wire , or coil pack.


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Most likely a bad ignition oil. Each cylinder has its own coil mounted at the top of the spark plug

I had the same problem on mines 98 Ford Expedition 4.6L . It ended been a simple tune up of plugs and wires. If it is a 5.4L it maybe a bad coil pack. I would switch the bad coil with a good one and go from there.

There are several things that can cause your 2003 or Expedition to misfire. The most common cause is a plugged catalytic converter.

a cylinder misfire might be happening. check your plugs and wires for bad connection

if sludge is keeping oil from draining away from valve guide a cylinder can suck in oil and cause plug to misfire

Plugs or / and Coil Packs. Auto Zone will check your codes for free and will tell you which plugs or coils are bad. Then replace.

Find and repair the cause of a misfire on cylinder #5.see related question below.Find and repair the cause of a misfire on cylinder #5.see related question below.

Most likely a bad coil (each cylinder has one) located at the top of each spark plug

the gun powder ispacked to tightly and the preassure builds up and can cause it to misfire

what are the possible causes of misfire on number one cylinder in a dodge 2003 ram 4.7 liter engine

Anything that could cause a cylinder misfire can cause the check engine light to flash. A restricted fuel filter is one.Anything that could cause a cylinder misfire can cause the check engine light to flash. A restricted fuel filter is one.

A cylinder misfire can be cause by a bad spark plug or a bad fuel injector. Replace the spark plug to see if the problem is corrected.

This isn't a question. Find the cause of the miss and repair it.

If it is causing the cylinder to misfire, yes.

Theres three coil packs; one fires two cylinders. I suppose if one is bad then it could cause the two corresponding to misfire. I had one cylinder misfire, it turned out to be the fuel injector.

p0302 is cylinder 2 misfire, you need to fix the cause of the misfire. Possible causes are plugs, coils, injectors......

I have a 95, had a misfire... mine was because of the plug wires... changed the wires and plugs mis fire stopped...

While an incorrect fuel/air ratio can cause a misfire, it's not likely to cause only one cylinder to misfire unless you have tuned port injection. The more likely cause is the ignition system... Distributor cap, rotor, plug wires, or spark plugs.

Coil pack and the spark plug- check compression

You locate the cause of the random misfire and take corrective actions against that; be it a coil, plug, wire, coil boot or crank sensor. A random misfire is as it states - a misfire that happens randomly in possibly a random cylinder as well. They can be hard to diagnose, as well and it is recommended that you take vehicle to a qualified, ASE certified shop for diagnostics.

If the valves were adjusted incorrectly, yes it can cause a miss. It can also burn a valve if they are adjusted too tightly.

If you have a "check engine" light on, start with having the codes read. A misfire code can tell you which cylinder or cylinders are having problems. A misfire could be the cause of your engine vibration.

it will feel like a misfire but should not cause a single cylinder misfire code. a bad maf ( mass air flow ) would and can set random multiple misfire codes, lean bank 1 and 2 just like a clogged fuel filter or restricted exhaust ( cat )

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