Question about 2005 Chevrolet Trailblazer Ext

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WHERE ARE THE SPARK PLUGS ON A 2005 TRAILBLAZER EXT 4.2 LITER I6?

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Remove the plastic resonator on the top of the engine and remove the air cleaner hoses.

You'll then see 6 coils. Remove the first one (2 screws) then carefully pull up and out on the coil. Then you can remove the plugs. Best plugs are A/C Delco 41-103. Hardest one to get to is #6 at the firewall, but with some extensions and knuckles, can be done.

Posted on Apr 08, 2011

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Posted on Jan 02, 2017

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2005 motor in a 2008 chevy blazer


Chevrolet TrailBlazer - Wikipedia, the free encyclopedia

https://en.wikipedia.org/wiki/Chevrolet_TrailBlazer
WikipediaProduction of the Blazer overlapped with the TrailBlazer until 2005, when the 2-door ...2006-2008 Chevrolet TrailBlazer LT ... The Active Fuel Management system on the V8 engine shuts off 4 of the 8 ... 2003-2005 Chevrolet TrailBlazer EXT.

Trailblazer cranks but won't start - first things to check ...

? 3:42
www.youtube.com/watch?v=4O-wplilVV0
Mar 6, 2012 - Uploaded by MAY03LT
These are the first tests that I do when I have a Trailblazer that won't start. ... Car will not start trouble shooting guide, wontcrank, wont turn over, etc. ... Chevy Trailblazer - testing fuel pressure 2002 -2004 4.2 I6 - Duration: 4:34.

Nov 06, 2015 | 2008 Chevrolet Chevrolet TrailBlazer LT

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Is there any where on the internet that show a picture of under the hood. Where the coil and spark plugs is located?


Chevrolet TrailBlazer 5.3 liter V-8 VIN "P"

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Chevrolet TrailBlazer 4.2 liter L6 DOHC VIN "S"

The cylinders are numbered from front to back, 1 2 3 4 5 and 6.
The firing order as you requested is: 1-5-3-6-2-4

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Hope this helps (remember to rate and commet this answer).

May 10, 2011 | 2005 Chevrolet TrailBlazer

1 Answer

I need to know what tools i need to change the spark plugs in my 2005 chevy trailblazer ext Lt 5.3liter


Thanks for choosing FixYa and welcome to the site. In order to change your spark plugs, you will need a spark plug socket with an extension. You need the extension because the plugs are deep. Thanks for using FixYa. If you have any questions, feel free to ask.

Mar 28, 2011 | 2005 Chevrolet Trailblazer Ext

2 Answers

Where do i find spark plugs and wires on chevolet trailblazer 2002


The spark plugs are located normally near the value cover where you put in the oil. The wires run from the spark plugs. If your vehicle is a 4 cylinder then there will be 4 spark plugs. If it's a 6 cylinder there will be 6 spark plugs.

Nov 28, 2010 | 2002 Chevrolet TrailBlazer

1 Answer

Do you know how many lifters are in a chevy trailblazer.


yes there are 12, one for each valve if u have the 6 cylinder 4.2 liter and 16 if u have the V8 5.3 liter.

Apr 29, 2010 | 2005 Chevrolet Trailblazer Ext

1 Answer

2005 Trailblazer EXT. Blower speed control not working...


Problem with blower motor is the blower motor resistor. They are usually located next to the blower motor, a couple of screws and a couple of plugs and your done. Autozone sells them for around $30 each. Wipers you may want to check for relays under the hood in the fuse block. There may be 2 relays 1 for low and 1 for high. I have switched relays from other working accesories and got wipers to work. Sometimes bad connection.

Mar 19, 2010 | 2002 Chevrolet TrailBlazer

1 Answer

Can't get the check engine light to go out on our 2005 Trailblazer. Recently replaced the spark plugs, air filter and previous to this a recent oil change as well.


There could be a hundred causes for a check engine light. First step is to hook up a computer scan tool and see what codes the computer has. The next step depends on the codes.

Dec 31, 2009 | 2005 Chevrolet Trailblazer Ext

1 Answer

Replacing spark plugs on a trailblazer


Is it possible you could get to them from the outside behind tire? Not sure just a thought.

Mar 20, 2009 | 2006 Chevrolet Trailblazer Ext

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