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2003 hse rangerover misfires runs rough

Engine runs rough missfires runs slow

Posted by Anonymous on

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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StormStrikes
  • 104 Answers

SOURCE: engine misfires

You didnt mention having changed the spark plug wires, so that is another item that could be culprit as well. As well, it could be a coil pack that is not working properly.

I cannot recall at the moment if that model year uses coil on plugs or if it uses coil packs. Either way, if it uses a coil on plug set up, take the one for the #3 cylinder and move it to say #4 or anyone of your choice and see if the misfire follows

If it uses coil packs, there is likely one coil pack that controls two cylinders. In that case just swap the coil pack with an adjacent one and see if the problem follows. Pay attention to where the spark plug wires go because it will be an issue if you get them mixed up. You just swap the coil packs around.

I would, however, start with the spark plug wires if you have not changed them already.

Posted on Dec 31, 2008

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  • 19 Answers

SOURCE: running rough, no power misfiring

i had that problem once. when i got under half a tank of gas in the tank. What i did was i dumped one bottle of gas line deicer in the tank and i have never had it agian. you may have some water in the tank. from condasation or i have a stong feeling i got my water from the gas station. i was using the same station all the time. so i tryed another gas station and so far no more rough idleing which was caused by the water i think and i am getting better fuel milage to. i hope this helps.

Posted on Jul 26, 2009

roniecon
  • 6826 Answers

SOURCE: 2003 kia # 3 misfire/ runs rough

Replace the coil for number 3 cylinder.

Posted on Nov 11, 2009

  • 6 Answers

SOURCE: Engine runs rough at idle and slow speeds.

clean the idle air control with brake cleaner or carb cleaner

Posted on Jun 19, 2010

  • 480 Answers

SOURCE: 1999 Ford Taurus 3.0L V6 24V DOHC Duratec Engine

i would check the plug wires and the coils you check the plug wires for bad spots at night start the motor up and look at the plugs if you see a spark arch out the wire and to a peace of metal then the plug wires need to be replace.

Posted on Dec 16, 2010

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You're engine can be misfiring - replace the spark plugs, plug wires, and cap and rotor.

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OBDII those codes generally mean misfire.

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Ensure you have the proper spark plugs. Check the coil boots/wires, look for burn marks. Anything beyond that you may have to take it back to the shop.
You are misfiring on all 4 cylinders and it is not spark plugs. Those misfires if not addressed can cause serious engine and/or cat converter damage. There are lots of things that could be causing it and most of them need to be checked out at a shop - unless you want to invest several thousand dollars in the appropriate equipment and training.

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Check engine light flashing runs rough not firing on all cylinder2000 lincoln navigator with large triton engine Hooked up diagnnostic and it said 1. system too lean bank #2 2. Unable to bleed up fuel tank...


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I have a 2003 tracker 2.0 liter codes p0304 in it i replaced all plugs & # 4 coil sometimes it works fine & other times it misfires on # 4 misfires at idle & slow speeds but seems to pull fine at highway...


Mary, Sounds like you have a lean missfire issue that may be caused by a dirty injector or possible air or vacuum leak at or near the injector. The injector is seated in a machined hole in the cylinder head or intake manifold. The injector is then sealed in the machined hole using an "O" ring seal to prevent unmetered air from entering the induction system. If the "O" ring is brittle, broken or damaged it will excess air into the system at low speeds and cause a lean fuel missfire to occur. Check to make sure there are no vacuum hoses running to #4 cylinder that are cracked or disconnected. Then
check around the injector base, you can squirt a small amount of carburetor cleaner around the injector base to see if the rough idle problem momentarily stops. If there is no change you may be looking an intermittent injector issue.
Let me know what you find before changing the injector.
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1998 Sunfire rough running (missfire) common causes?


if check engine light comes on may be crank position sensor or ur injectors r clogged try some chevron injector cleanor it helps when injectors clogged makes it run smoother

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