Question about 2001 Hyundai Accent

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Car chucking my hyundi 2001 is chucking i put it on the computer and it said coil 3 was faulty so i put all new coils in but it didnt help what else might it be?

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  • Hyundai Master
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No 4 coil makes others run in sequence ,dealer to reset computer i think for this one .

Posted on Jan 28, 2009

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1 Answer

2001 volvo s60 2.4t, car start then misfire 2 3 4 and random. after that, the car wont start without me pressing the gas.


ignition coil 2 ignition coil 3 ignition coil 4 either one of coils is faulty.could have bad spark plug or plugs,could have dirty fuel injectors.code scan vechicle see what codes you have.

Oct 21, 2012 | Volvo S60 Cars & Trucks

1 Answer

2001 4.3 silverado...put new fuel pump and mas air flow last week...was running fine til yesterday. started running real rough gad to pull over...was actiung like a bad wire or plug so i changed them,


did you replace the coil packs as each cylinder has on most cars 1 pack per 2 cylinders so a 4 cylinder car has 2 packs and so on hope this helps

Sep 26, 2012 | 2001 Chevrolet Silverado 1500

1 Answer

Have a 2001 ford expedition with a 5.4 triton has a misfire in the number 3 cylinder i changed the spark plug and the coil pack on it confused on what it could be that keeps throwing these codes


Vehicles: Any vehicle with the above symptoms.

You have a bad spark plug wire on #3, or possibly a clogged/malfunctioning fuel injector on Cylinder #3. Or, less likely, some of the other possible culprits mentioned below (exhaust valve/O2 sensor/Catalytic converter/ECC).

I'm presuming the OBD-II DTC code from the Expedition's computer is P0303.
Always try resetting the code and see if it returns - your new spark plug and new coil pack may have fixed the problem, but if the P0303 code isn't reset, it'll remain stored,and the CEL (Check Engine Light) will remain lit.

If I were standing in front of the vehicle right now, the 1st thing I'd do is put my "mechanic's stethoscope" on the fuel injector with the motor running to verify correct operation. Why would I do this first? Its free, and informative. You'll hear both the explosion in the cylinder, and the "tic" sound of the fuel injector solenoid as the injector operates. Auscultate the properly functioning cylinders first, so you know what to listen for.

If all you have is a medical/Sprague-Rappaport stethoscope. remove the auscultation bell, and replace it with a 12-inch (36 cm) long wooden dowel or solid/hollow metal rod as a substitute. Sound will transmit just fine through the wood/metal. Prefer metal, if you have a choice.

Here's the "official" P0303 write-up:
------------------------------------------------------------------------------------------------------------
P0303 Code - Cylinder #3 Misfire
Technical Description

Cylinder #3 Misfire Detected

A P0303 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #3.
Symptoms
Symptoms may include:

the engine may be harder to start
the engine may stumble / stumble, and/or hesitate
other symptoms may also be present

Causes

A code P0303 may mean that one or more of the following has happened:

Faulty spark plug or wire
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector
Burned exhaust valve
Faulty catalytic converter(s)
Running out of fuel
Poor compression
Defective computer (ECC)

Possible Solutions

If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.

If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. In other cases the problems were faulty fuel injectors.

Dec 07, 2011 | 2001 Ford Expedition

2 Answers

Coil for 3-6 is not firing. I replaced it with a new one and still no luck. It appears that the coil is not getting power signal.


The problem is most likely the module under the coil packs that is bad. This is the part the coil packs bolt to.

Nov 24, 2010 | 2001 Pontiac Bonneville

1 Answer

Po303 code. I put new spark plugs in but still have misfire code.


A code P0303 may mean that one or more of the following has happened:
  • Faulty spark plug or wire
  • Faulty coil (pack)
  • Faulty oxygen sensor(s)
  • Faulty fuel injector
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Running out of fuel
  • Poor compression
  • Defective computer

Possible Solutions: If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back. If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.

Hope helps (remember to rate this answer).

Nov 03, 2010 | 2001 Jeep Cherokee

4 Answers

I have a 2001 olds aurora 3.5v6 i took my car to


did u change your spark cable? hum try that good luck

Nov 05, 2009 | 2001 Oldsmobile Aurora

1 Answer

2001 volvo s60 2.4 turbo misfire


  • Faulty coil (pack)
  • Faulty camshaft position sensor
  • fuel filter and fuel
  • the p0300 car's computer has detected that one of the engine's cylinders is not firing p0301 In this case it's cylinder #1.p0302 In this case it's cylinder #2.and so on i would check the three listed above first then check
  • Faulty spark plugs or wires
  • Faulty oxygen sensor(s)
  • Faulty or plugged fuel injector
  • Burned exhaust valve
  • Faulty catalytic converter(s)
  • Stuck/blocked EGR valve
  • Defective computer Random misfires that jumps around from one cylinder to another (read: P030x codes) also will set a P0300 code. The underlying cause is often a lean fuel condition, which may be due to a vacuum leak that may be a broken hose or in the intake manifold (gasket,spary aruond it with wd40 or starer fluid if the engine idle goes high theres your problem) or unmetered air getting past the airflow sensor, or an EGR valve that is stuck open. hope this helps
  • Apr 23, 2009 | 2001 Volvo S60

    1 Answer

    98 vw beetle misfiring after rain. New plugs, coil cas cracks????


    Hi, Yes it certainly could be especially if water gets in. You should also check the distributor cap. The misfire sounds like an arcing problem so it would have to be one of those two things since you changed the rest. Good Luck!

    Feb 25, 2009 | 2001 Volkswagen Beetle

    2 Answers

    2001 Hyundai Sonata


    I think that the coil packs has installed wrong because you said that the problem started when you replaced them... so i think you should re-install.

    Jul 02, 2008 | 2001 Hyundai Sonata

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