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IT DOES HAVE OVER 70K THE REPAIR SHOP REPLACE THE 1 PLUG AND TOLD ME IT'E COIL PACK.

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  • 48 Answers

Then i the problem still exist, I would replace the coil. Still be aware, there is the possibility o being an injector problem.

Posted on Dec 12, 2012

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Posted on Jan 02, 2017

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SOURCE: l994 Olds Delta 88 hesitation and appears to not

if u replace all plug wires witch should be done not just 1, then if you are having the same problem your fuel pump maybe to weak to push the fuel to the engine

Posted on Feb 23, 2009

  • 314 Answers

SOURCE: Replace Coil Pack on 2008 Mazda MPV

it sounds like the coil pack is bad so go ahead and replace the pack. that should fix your problem

Posted on Jun 09, 2009

  • 2187 Answers

SOURCE: Oil pools in Spark plug wire hole on Cyl 1 & 4 causing misfire.

There is an oil seal for each hole for the plugs. This requires a little work. You need to take out the cover of the head. Normally you should see the seals underneath the cover just surrounding the holes.

Posted on Jun 21, 2009

  • 3600 Answers

SOURCE: number one cyl on coil pack not firing, all others

Check the spark plug first. then if the plug is good you wil need a digital ohm meter to test the coil pack. if you need to know how to remove the coil pack let me know, to test put on ohms should not have more than 2 1/2 ohms restance betweent coil lead to coil connector. If you test the coil pack on both sides of the pack and get a reading then the coil is bad, if it does not read then you haave a bad fireing plate diode.

Posted on Mar 12, 2010

jturcotte
  • 8142 Answers

SOURCE: 2004 ford ranger 4.0 plug

1 is right front, but coil pack should be marked with cylinder numbers as below. Firing order is 1-4-2-5-3-6. OK?

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Posted on Oct 31, 2010

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1 Answer

2004 Sorento began with code P0305, cyl #5 misfire. Inspected and replaced plugs, wires, and coil pack on cyl #2. Repair shop told me cyl #5 injector bad so they replaced. Still has misfire.I suggeste


If you had code P0305, I don't know why they would have done anything to the #2 cylinder but if they have already replaced the plugs, wires and injector; here are a few more items to check:
1) Check connections from ECM. Look for any corrosions or bent/broken pins.
2) Check the fuel line pressure
3) Check the engine compression
4) And if the above are good, then you will probably have a defective ECM

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I have a 97 thunderbird V6 3.8L that is misfiring in cylinders 2 and 6. I tested all the plug wires at the plug connection with a calibrated tester, there is no spark at the plug. I have changed the plugs,...


Did you replace the coil pack or just verify 12 volt power to it? if both old and new coil packs have the same issue, (no spark on 2 and 6), then the harness to the coil pack has broken wires or bad connection(in the connector itself), or the computer is faulty. I believe each plug wire tower on the coil pack has it's own signal wire in the harness. Understand that the towers are "paired" together.
For example, cylinder layout.... 1 - 2 - 3
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Depending on the firing order and the actual layout of your cylinder's the above layout would mean
1 and 4 get the signal to spark,(at the same time), even though 1 is on its power stroke, and 4 is on its exhaust stroke. Hope this is clear as mud!

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I have a 2001 toyota fourrunner showing computer codes p-0300 & p-0304. What are these codes for?


The P0300 is a random multiple misfire code, the P0304 is specific to the number 4 cylinder, a common problem for this code is a igniter/coil malfunction on the #4 cylinder, each cylinder has it's own coil, what you can do is to remove the #4 coil pack(it's the middle one on the driver's side) and switch it with coil #2 which is the first one on the driver's side, clear the codes and drive it if the code now shows P0302 replace the coil.

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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".

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1 Answer

Repair shop told me I needed a one new coil pack and new plugs. My 2005 Lincoln Navigator has 90,000 miles and has never had "any" engine work other than basics needed. Should all coil packs be changed...


Just change the bad coil. Each plug has its own and there is no difference when you replace a single coil or all. They could have ripped you off with all new coils, but did not.

Replacing all the plugs is a good idea for the mileage and the access. The same main parts have to be moved to get at one or 8.

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2001 pontiac cowl pack not fireing.


Here is a diagram of the firing order for you 3800 engine. Cylinders 1 and 4 are misfiring because the operate under the same "Coil Pack" and the coil pack has unfortunately gone bad. O'Reilly sells them for between $30-50 depending on the amount of warranty coverage you want. To replace, simply unscrew the screws that hold the coil pack in place. WAIT before unplugging the plug wires. Place the old coil pack and new coil pack next to each other, unplug one plug wire, then plug it to that same port on the new coil pack. then do the same for the other plug wire. Then screw your new coil pack in place, and start you car. should run fine!

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Rough idling and accelerating after recent tune-up. Cool Pack needed say shop


Best thing to do is go to Auto Zone or Parts Source and have the computer scanned for DTC codes. 
The codes will give you a better understanding why the car is running the way it is and what parts you need to replace if any.
The cool thing is that they will scan for free and give you the how to do it your self it you decide to change the parts your self.
Good luck and hope this helps. It may not be your coil packs, it may just be bad plug wires or dirty fuel injectors.

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1 Answer

L994 Olds Delta 88 hesitation and appears to not be getting gas.Has replaced master air flow sensor, replaced 1 plug wire gas fuel filter and coil packs (all three) and still having this problem. Vehicle...


if u replace all plug wires witch should be done not just 1, then if you are having the same problem your fuel pump maybe to weak to push the fuel to the engine

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