Question about 2002 Chevrolet TrailBlazer

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How do I replace the front running light bulb on a 2003 Chevrolet Trail Blazer? Thanks for any help,

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Which side? either remove battery or air box to get to back of light

Posted on Jul 16, 2009

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Trail blazer 2003 4.2 po301

Cylinder #1 misfire. If the engine is running fine the code will reset on it's own after 40 cycles of the ignition key. If the engine is running poorly it could be due to bad spark plug or coil pack.

Jan 14, 2013 | 2003 Chevrolet TrailBlazer

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How do u change the front passenger light on a 2003 chevy trail blazer LT?

Piece of cake. Remove the air cleaner top and air cleaner. Walla, there's tons of room to change the bulb now.

Nov 16, 2010 | 2003 Chevrolet Trailblazer Ext

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Just want to replace tail light on a 2003 Trail Blazer, and as I see it there 2-screws you need to unfasten before the plastic hub comes off. Is that correct.

That would be correct, then unscrew the bulb unit from the back side, I believe it's 4 small screws on the back. Pull your bulbs out and replace.

Oct 30, 2010 | 2003 Chevrolet TrailBlazer

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2003 trail blazer electrical problems

You might have jumped it wrong and blown the fuse. You have to use the specified ground, not the one on the batt. If you did use the batt ground, check your fuses and replace as needed. If there are no fuses blown check the bulbs, they too can be blown. Good luck

Jul 26, 2009 | 2006 Chevrolet Trailblazer

1 Answer

Low beam out dont want to take my whole grill apart

Remove the bulb from under the hood by rotating the nut counter clockwise. Remove the bulb using a gloved hand and try not to touch the bulb. Replace with the like number bulb by NOT touching the bulb with your bare skin as the oils in our skin can destroy the light bulb. Re-install in the same way it was taken out.

May 21, 2009 | 2003 Chevrolet TrailBlazer

2 Answers

How do I change the lowbeam headlight on my 2003 Chev Trail Blaze

hi..Should be a Halogen bulb High-low beam combo maybe.
As you are looking down at the back of the headlight assembly
gently push down on the clip that holds the wiring harness to the
bulb. Now rotate the bulb counter clock wise (left) and then remove
it. Reverse process to install.
check it out..
thank u..
rate me..

Mar 10, 2009 | 2006 Chevrolet Trailblazer Ext

1 Answer


if chains caused problem and you have driven with them off light would have gone out once it saw everything working properly. look at sensors might have pulled a wire loose with chains. the abs system runs a self test everytime you start vehicle if it sees a history code from last time it will leave light on and look to see if that problem still exists and 99% of the time it will cut light off . but need to have scanned and checked out

Dec 29, 2008 | 2005 Chevrolet TrailBlazer

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Water leaking

The weep hole of the water pump may be leaking. You see the water drip at the lower part of the front of the engine. After you park the truck, slide under the front of it and with a flash light look at the bottom of the water pump and see if you see a trail of water happening there.

Oct 21, 2008 | 2002 Chevrolet Blazer

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