Question about 2005 Chevrolet Colorado

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Changing spark plugs

How do I change the spark plugs on my 2005 colorado PU, 3.5 engine??

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  • yadayada
    yadayada May 11, 2010

    do u have the tools to do this?

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This is the 3.5L inline 5 cylinder engine. The spark plugs are at the top of the engine. They are covered by a hunk of plastic called the "Air Intake Resonator".  Remove the plastic. Carefully pull the ignition coils from the spark plugs. Unlike most other cars. The Colorado has a coil on every plug.  This boosts ignition power, but, every coil is expensive. Do not harm them.

Posted on May 12, 2009

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what is involved in changing spark plugs and which type is recommended?

Posted on Nov 14, 2008

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1 Answer

Truck wont start engine turns but wont fire


If the trucks turns over and does not seem like the battery is dead I would assume it is spark or fuel. Check spark plugs to make sure they spark. Pull one plug at a time hold it against side of engine and have someone turn the truck over for you. You should see bright spark from all spark plugs. If you do see spark then check your Fuel Pump to make sure it is getting power and is opperating correctly also check your fuel filter to make sure it is not plugged. Good luck, Hope this helps.

Sep 05, 2012 | 2005 Chevrolet Colorado

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.

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Jan 23, 2012 | Cars & Trucks

1 Answer

Where are the spark plugs and wires located in my colorado


assuming it is the 5 cylinder engine there are no plug wires. there is an individual coil for every cylinder the spark plugs will be directly under these coils

Jun 22, 2011 | 2005 Chevrolet Colorado

1 Answer

Trying to locate spark plugs on chevy 2005 colorado, so i can replace new ones


You should see a spark plug wire for each spark plug. The spark plugs are in the cylinder head. You have to unplug the plug wire first before you replace the plugs. Be careful as to not damage the plug wires when removing them. Be carefull not to get dirt into the cylinder when replacing the plug. Do not overtighten the new plugs. I can't remember which side of the engine the plugs are on, on your truck. You truck has the inline 5 cylinder I think.

May 16, 2011 | 2005 Chevrolet Colorado

2 Answers

My check engine light is on in my 2005 chevy colorado. It came on when the change oil came on. I just got the oil change but the engine light is still on.


HAVE AUTO ZONE SCAN VECHICLE THEY WILL DO IT FREE.CHECK ENGINE WILL COME ON IF YOU PUT TOO MUCH OIL IN TRUCK WILL CAUSE ENGINE MISFIRE OIL WILL GET ON SPARK PLUGS.TRY THIS RESET YOUR CHANGE OIL LIGHT.TURN IGNITION ON POSITION WITH ENGINE OFF.PRESS BUTTON ON BOTTOM OF SPEEDOMETER AND HOLD BUTTON UNTIL 3 CHIMES SOUND.INDICATING RESETTING IS COMPLETE.THEN TURN OFF IGNITION. IF CHECK ENGINE LIGHT STILL REMAIN ON TAKE VECHICLE TO AUTO ZONE HAVE THEM SCAN VECHICLE OR THE PLACE YOU HAD OIL CHANGE.SHOW THEM CHECK ENGINE LIGHT CAME ON AFTER THEY CHANGED OIL.HAVE THEM SCAN VECHICLE SEE WHAT WRONG.YOU PAID FOR SERVICE AND YOU GOT ANOTHER PROBLEM.

Jan 04, 2011 | 2005 Chevrolet Colorado

1 Answer

Where are the spark plugs on a 2005 colorado 2.8 4 cylinder?


Should black coil assembly going across top of engine,remove and plugs will be located underneath.

Jun 18, 2009 | 2005 Chevrolet Colorado

1 Answer

2005 Chevy Colorado - The reduced power mode comes on with the engine light on every so often, it usually clears itself when I shut the vehicle off, sometimes it doesn't. I changed the spark plugs and...


you need to have the codes retrieved and see if you have a code for the throttle module or pedal position sensor, a common problem is the module on the throttle body, which requires throttle body replacement.

Apr 20, 2009 | 2005 Chevrolet Colorado

1 Answer

About of sparkplugs calibration


I am assuming that you are asking about the spark plug gap. Hope this helps

GASOLINE ENGINE TUNE-UP SPECIFICATIONS Year Engine VIN Engine Displacement Liters Spark Plug Gap (in.) Fuel Pump (psi) Ignition Timing (deg.) Idle Speed (rpm) Valve Clearance (in.) MT AT MT AT In. Ex. 2005 8 2.8 0.042 50-57 - - - - HYD HYD 6 3.5 0.042 50-57 - - - - HYD HYD

Mar 28, 2009 | 2005 Chevrolet Colorado

2 Answers

Changing Spark plugs 2005 Colorado


what is involved in changing spark plugs and which type is recommended?

Oct 31, 2008 | 2005 Chevrolet Colorado

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