Question about 2004 Toyota Corolla

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Cannot remove ignition coils to spark plugs

Ignition coils to spark plugs willnot withdraw to gain entry to sparkplugs on 2 cylinders

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  • 274 Answers

Get a haynes repair manual at your auto parts store

Posted on Jan 19, 2013

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Posted on Jan 02, 2017

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SOURCE: check engine light is on the code was po300

I respectfully disagree.
A P-0300 will NOT be set in a Corolla by a dirty fuel filter.
Replacing the fuel filter could be a very costly operation, as I have observed that the fuel line threads that connect to the fuel filter easuily get damaged when removing the fuel filter.

In short, don't replace the filter until you are SURE that it is the culpit.
In this case, the fuel filter is NOT the culprit..
Save your money; and your time.
Additionally, premium fuel does not clean fuel injectors. That expense would be a waste of money. The engine will actually run WORSE on premium fuel; the engine is NOT designed to run on premium. 87 or 89 (better choice/89) is the grade to use.

If you really want to track down the P-0300 code, which is a multiple/random cylinder misfire, I would look at the quality of the fuel in the car; ie water in the gas. Second, I would remove the plugs and examine them closely. A worn center electrode will also set the P-0300 code, as will bad/weak plug wires (over 5 years old).

Please feel free to contact me back if you need further assistance. Thanks for choosing FixYa for assistance.

Posted on Mar 05, 2009

  • 138 Answers

SOURCE: I am working on a 1998 Toyota 4-Runner. I changed

1-4
2-5
3-6

Posted on Jun 27, 2009

SOURCE: 2000 Tundra 4.7L 4X4 auto ex cab--#'s 4, 5 and 7 cylinders misfir

Disconnect your negative battery to reset your computer for 1 minute to get rid of possible old codes. Restart your vehicle and wait for the check engine light. Go have the computer reread and see what it is from there.

Posted on Jan 29, 2010

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SOURCE: i have a 96 camry with a 3.0 v-6 1mz-fe engine.

Back: 456 Front: 123
1 links with 6 2 links with 5 3 links with 4

Posted on Feb 20, 2010

leafsveteran
  • 74 Answers

SOURCE: 6th cylinder misfire. replaced spark plug and

Did u find code p0306 comes up ? Two things can cause this if the plug and coil have been replaced.the intake manifold may be leaking in the area of cyllinder 6 or its a mechanical issue.try doing a cyllinder misfire test and also check the compression on all cyllinders

Posted on Dec 16, 2010

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Cant find plugs on a 3.7 6 cylinder 2 wheel drive dakota please help


3.7L Engines
Each individual spark plug is located under each ignition coil. Each individual ignition coil must be removed to gain access to each spark plug. Refer to Ignition Coil Removal/Installation. Prior to removing spark plug, spray compressed air around base of ignition coil at cylinder head. This will help prevent foreign material from entering combustion chamber.

  1. Remove spark plug from cylinder head using a quality socket with a rubber or foam insert.
  2. Inspect spark plug condition.
To install:
  1. Start the spark plug into the cylinder head by hand to avoid cross threading.
  2. Before installing coil(s), check condition of coil o-ring and replace as necessary. To aid in coil installation, apply silicone to coil o-ring.
  3. Tighten spark plugs to 27 Nm (20 ft. lbs.) torque.
  4. Install ignition coil(s). Refer to Ignition Coil Removal/Installation.

Sep 21, 2013 | Cars & Trucks

1 Answer

Anyone have the firing order diagram for a 2011 dodge nitro 4.0 liter v6? Also how do I get to the spark plugs on the drivers side? I can't figure it out!!!


Here ya go
Each individual spark plug is located under each ignition coil. Each individual ignition coil must be removed to gain access to each spark plug See: Ignition Coil\Service and Repair\Ignition Coil - Removal

  1. Remove necessary air filter tubing at throttle body.
  2. Prior to removing ignition coil, spray compressed air around coil base at cylinder head.
  3. Prior to removing spark plug, spray compressed air into cylinder head opening. This will help prevent foreign material from entering combustion chamber.
  4. Remove spark plug from cylinder head using a quality socket with a rubber or foam insert. Also check condition of ignition coil O-ring and replace as necessary.
  5. Inspect spark plug condition


e37617e4-0d9e-4ecf-a5f8-c7e4803c8616.jpeg

Aug 18, 2013 | Cars & Trucks

1 Answer

Spark plugs


Check this SPARK PLUG REPLACEMENT - REMOVAL PROCEDURE

1_23_2012_5_10_32_pm.jpg

1. Remove the ignition coils (lines at end this document), then return here once you have gotten the Coil
Packs off and precede with step 2 from here.
2. Clean the spark plug recesses with low pressure air. CAUTION: Wear safety glasses
when using compressed air, as flying dirt particles may cause eye injury. NOTE:
Clean the spark plug recess area before removing the spark plug. Failure to do so could
result in engine damage because of dirt or foreign material entering the cylinder head, or
by the contamination of the cylinder head threads. The contaminated threads may prevent
the proper seating of the new plug. Use a thread chaser to clean the threads of any
contamination.
3. Remove the spark plugs from the cylinder head. NOTE: Allow the engine to cool before
removing the spark plugs. Attempting to remove the spark plugs from a hot engine may
cause the plug threads to seize, causing damage to cylinder head threads.
4. Inspect the spark plugs.

INSTALLATION PROCEDURE

1_23_2012_5_11_30_pm.jpg

1. Measure the spark plug gap on the spark plugs to be installed. Compare the measurement
to the gap specifications. NOTE:
• Use only the spark plugs specified for use in the vehicle. Do not install spark
plugs that are either hotter or colder than those specified for the vehicle. Installing
spark plugs of another type can severely damage the engine.
• Check the gap of all new and reconditioned spark plugs before installation. The
pre-set gaps may have changed during handling. Use a round feeler gage to ensure
an accurate check. Installing the spark plugs with the wrong gap can cause poor
engine performance and may even damage the engine.
2. Install the spark plugs to the cylinder head. NOTE:
• Be sure that the spark plug threads smoothly into the cylinder head and the spark
plug is fully seated. Use a thread chaser, if necessary, to clean threads in the
cylinder head. Cross-threading or failing to fully seat the spark plug can cause
overheating of the plug, exhaust blow-by, or thread damage.
• Refer to Component Fastener Tightening Notice in Service Precautions.
Tighten the spark plugs to 18 N.m (13 lb ft).
3. Install the ignition coils.

IGNITION COIL(S) REPLACEMENT
REMOVAL PROCEDURE
1. Remove the air cleaner resonator and outlet duct.
2. Disconnect the engine wiring harness electrical connector (1) from the oil pressure sensor (2).
3. Disconnect the engine wiring harness retainers (1) from the power steering pump (2).
4. Disconnect the engine wiring harness electrical connectors (1, 4) from the following:
• The exhaust camshaft position (CMP) sensor (5)
• The camshaft position (CMP) actuator solenoid valve (6)
5. Disconnect the engine wiring harness retainer (2) from the camshaft cover (3).
6. Disconnect the engine wiring harness electrical connectors from the following:
• The engine coolant temperature (ECT) sensor (1)
• The fuel injector harness (2)
• The ignition coils (4)
• The heated oxygen sensor (HO2S) (5)
7. Disconnect the engine wiring harness electrical connector from the intake camshaft position (CMP) sensor.
8. Carefully disengage the engine wiring harness conduit from the camshaft cover, and position aside.
9. Remove the ignition coil bolts.
10. Remove the ignition coils from the camshaft cover.

INSTALLATION PROCEDURE
1. Install the ignition coils into the camshaft cover. IMPORTANT: Ensure the ignition coil seals are properly seated to the camshaft cover.
2. Install the ignition coil bolts. NOTE: Refer to Fastener Notice in Service Precautions. Tighten the ignition coil bolts to 10 N.m (89 lb in).
3. Attach the engine wiring harness conduit to the camshaft cover.
4. Connect the engine wiring harness electrical connector to the intake CMP sensor.
5. Connect the engine wiring harness electrical connectors to the following:
• The ECT sensor (1)
• The fuel injector harness (2)
• The ignition coils (4)
• The HO2S (5)
6. Connect the engine wiring harness electrical connectors (1, 4) to the following:
• The exhaust CMP sensor (5)
• The CMP actuator solenoid valve (6)
7. Connect the engine wiring harness retainer (2) to the camshaft cover (3).
8. Connect the engine wiring harness retainers (1) to the power steering pump (2).
9. Connect the engine wiring harness electrical connector (1) to the oil pressure sensor (2).
10. Install the air cleaner resonator and outlet duct.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Jan 23, 2012 | Cars & Trucks

1 Answer

How to change spark plugs in a 2005 chev colorado


SPARK PLUG REPLACEMENT - REMOVAL PROCEDURE

1_23_2012_5_10_32_pm.jpg

1. Remove the ignition coils (lines at end this document), then return here once you have gotten the Coil
Packs off and precede with step 2 from here.
2. Clean the spark plug recesses with low pressure air. CAUTION: Wear safety glasses
when using compressed air, as flying dirt particles may cause eye injury. NOTE:
Clean the spark plug recess area before removing the spark plug. Failure to do so could
result in engine damage because of dirt or foreign material entering the cylinder head, or
by the contamination of the cylinder head threads. The contaminated threads may prevent
the proper seating of the new plug. Use a thread chaser to clean the threads of any
contamination.
3. Remove the spark plugs from the cylinder head. NOTE: Allow the engine to cool before
removing the spark plugs. Attempting to remove the spark plugs from a hot engine may
cause the plug threads to seize, causing damage to cylinder head threads.
4. Inspect the spark plugs.

INSTALLATION PROCEDURE

1_23_2012_5_11_30_pm.jpg

1. Measure the spark plug gap on the spark plugs to be installed. Compare the measurement
to the gap specifications. NOTE:
• Use only the spark plugs specified for use in the vehicle. Do not install spark
plugs that are either hotter or colder than those specified for the vehicle. Installing
spark plugs of another type can severely damage the engine.
• Check the gap of all new and reconditioned spark plugs before installation. The
pre-set gaps may have changed during handling. Use a round feeler gage to ensure
an accurate check. Installing the spark plugs with the wrong gap can cause poor
engine performance and may even damage the engine.
2. Install the spark plugs to the cylinder head. NOTE:
• Be sure that the spark plug threads smoothly into the cylinder head and the spark
plug is fully seated. Use a thread chaser, if necessary, to clean threads in the
cylinder head. Cross-threading or failing to fully seat the spark plug can cause
overheating of the plug, exhaust blow-by, or thread damage.
• Refer to Component Fastener Tightening Notice in Service Precautions.
Tighten the spark plugs to 18 N.m (13 lb ft).
3. Install the ignition coils.

IGNITION COIL(S) REPLACEMENT
REMOVAL PROCEDURE
1. Remove the air cleaner resonator and outlet duct.
2. Disconnect the engine wiring harness electrical connector (1) from the oil pressure sensor (2).
3. Disconnect the engine wiring harness retainers (1) from the power steering pump (2).
4. Disconnect the engine wiring harness electrical connectors (1, 4) from the following:
• The exhaust camshaft position (CMP) sensor (5)
• The camshaft position (CMP) actuator solenoid valve (6)
5. Disconnect the engine wiring harness retainer (2) from the camshaft cover (3).
6. Disconnect the engine wiring harness electrical connectors from the following:
• The engine coolant temperature (ECT) sensor (1)
• The fuel injector harness (2)
• The ignition coils (4)
• The heated oxygen sensor (HO2S) (5)
7. Disconnect the engine wiring harness electrical connector from the intake camshaft position (CMP) sensor.
8. Carefully disengage the engine wiring harness conduit from the camshaft cover, and position aside.
9. Remove the ignition coil bolts.
10. Remove the ignition coils from the camshaft cover.

INSTALLATION PROCEDURE
1. Install the ignition coils into the camshaft cover. IMPORTANT: Ensure the ignition coil seals are properly seated to the camshaft cover.
2. Install the ignition coil bolts. NOTE: Refer to Fastener Notice in Service Precautions. Tighten the ignition coil bolts to 10 N.m (89 lb in).
3. Attach the engine wiring harness conduit to the camshaft cover.
4. Connect the engine wiring harness electrical connector to the intake CMP sensor.
5. Connect the engine wiring harness electrical connectors to the following:
• The ECT sensor (1)
• The fuel injector harness (2)
• The ignition coils (4)
• The HO2S (5)
6. Connect the engine wiring harness electrical connectors (1, 4) to the following:
• The exhaust CMP sensor (5)
• The CMP actuator solenoid valve (6)
7. Connect the engine wiring harness retainer (2) to the camshaft cover (3).
8. Connect the engine wiring harness retainers (1) to the power steering pump (2).
9. Connect the engine wiring harness electrical connector (1) to the oil pressure sensor (2).
10. Install the air cleaner resonator and outlet duct.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Jan 23, 2012 | Cars & Trucks

2 Answers

How do you change spark plugs in a 2004 hyundia sonata


It depends on which engine is in the vehicle. The 2004 Sonata came with two possible powertrains -- the 2.4 Lit L4, and the 2.7 Lit V6.

On the 4 cylinder engine, there are two coil packs and two ignition wires, Below each coil pack is a spark plug (#2 and #4 cylinders). The wire from # 2 coil pack goes to #3 spark plug, and the wire from #4 coil pack goes to #1 spark plug.

Photo:

ghost45_15.jpg
Now the 2.7 Lit V6 requires you remove the surge tank (intake manifold) in order to access the spark plugs & wires on Bank 1 (Right Hand side of the engine).

Photo:
ghost45_16.jpg

Jun 10, 2011 | Hyundai Sonata Cars & Trucks

1 Answer

Where are the spark plugs located on a 2006 pacifica 24 valve 3.5 l


HI. Your spark plugs are located and inserted into each cylinder location, just under the respective ignition coil. This engine is designed for a Coil on Plug setup. The ignition coils are attached to each plug in the engine. Once you have removed each plugs respective coil,which is located directly on top of each plug, Then will you notice the plug. When removing the front plugs, be sure to remove the intake manifold to gain full access.

NOTE- Always remove the ignition coil assembly by grasping at the spark plug boot, turning the assembly 1/2 turn and pulling straight back in a steady motion. Only then will you gain access to the plug that is placed in that particular cylinder.

Nov 21, 2010 | 2006 Chrysler Pacifica

1 Answer

How do I remove the rear three spark plugs on a toyota avalon 1998


Hi, to change spark plug first remove coil over connecting clip ensuring to depress connector release. Next remove coil over retaining bolts. Remove coil over carefully directing coil toward driver side until rubber end able to flex out of sparkplug access tube. Remove sparkplug using sparkplug socket with rubber insert. Had to remove ratchet to gain enough clearance. At this point you should be able to remove sparkplug by tilting extension & socket toward drivers side of car. Then lay horizontal & remove toward passenger side of car. If unable to gain access in this manner you probably have too long an extension. Take care as not to damage spark plug coil over as they are considerably expensive.

Sep 18, 2010 | 1998 Toyota Avalon

1 Answer

Wheres the sparkplugs on a 1999 alero 2.4 litre engine


Gain access to the spark plugs and spark plug wires. In a 2.4 liter engine, remove the ignition coil and module assembly from the top of the engine to gain access. In this Alero model's engine, the spark plugs run down the center of the engine.

Apr 04, 2010 | 1999 Oldsmobile Alero

2 Answers

How to replace sparl plugs on a Jeep Cherokee?


Hello, I hope this info helps...(subytech1)...REMOVAL
In this engine, each individual spark plug is located under each ignition coil.

  1. Prior to removing spark plug, spray compressed air around base ofignition coil at cylinder head. This will help prevent foreign materialfrom entering combustion chamber.
  2. On this engine each individual ignition coil must be removedto gain access to each spark plug. Refer to Ignition CoilRemoval/Installation.
  3. Check condition of coil O-ring and replace as necessary.
  1. Inspect spark plug condition. Refer to Spark Plug Conditions.
CLEANING
Theplugs may be cleaned using commercially available spark plug cleaningequipment. After cleaning, file center electrode flat with a smallpoint file or jewelers file before adjusting gap.

CAUTION: Never use a motorized wire wheel brush to clean sparkplugs. Metallic deposits will remain on spark plug insulator and willcause plug misfire.

ADJUSTMENT

Setting Spark Plug Gap - Typical
Check spark plug gap with a gap gauge tool. If the gap is not correct,adjust it by bending ground electrode. Never attempt to adjust gap bybending center electrode.

INSTALLATION

CAUTION: This engine is equipped with copper core groundelectrode spark plugs. They must be replaced with the same type/numberspark plug as the original. If another spark plug is substituted,pre-ignition will result.

Special care should be taken when installing spark plugs into cylinderhead spark plug wells. Be sure plugs do not drop into plug wells asground straps may be bent resulting in a change in plug gap, orelectrodes can be damaged.

Always tighten spark plugs to specified torque. Over tightening cancause distortion resulting in a change in spark plug gap or a crackedporcelain insulator.

  1. Start spark plug into cylinder head by hand to avoid cross threading.
  2. Tighten spark plugs to 27 Nm (20 ft. lbs.) torque.
  3. Before installing coil(s), check condition of coil O-ring andreplace as necessary. To aid in coil installation, apply silicone tocoil O-ring.
  4. Install ignition coil(s). Refer to Ignition Coil Removal/Installation.

Aug 07, 2009 | 2000 Jeep Grand Cherokee

1 Answer

Where are the spark plugs and wires on a 2001 Lincoln Continenta?


This engine has coil on plug ignition. Ontop of each valve cover is an access plate with bolts you remove. After gaining access you will see the 4 seperate wires on each cylinder bank. At the end of each wire is the spark plug boot. Pull each one off one at a time while replacing the spark plugs. The wires themselves at the other end each have a seperate coil. I have not had to replace my wies and coils but did replace the sparkplugs at 100K miles.

Mar 22, 2009 | 2001 Lincoln Continental

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