2003 Chevrolet TrailBlazer - Answered Questions & Fixed issues

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2003 Chevy Trailblazer. I need a diagram of the serpentine belt on it please.

Question edited for clarity. Turned around and add CAPS. Question moved to model category. In the link https://www.google.com/search?q=2003+Chevy+Trailblazer+diagram+of+serpentine+belt ..
2/24/2024 5:00:02 AM • 2003 Chevrolet... • Answered on Feb 24, 2024 • 21 views
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2003 chevy trailblazer panel gages not working and ticking sound behind panel while engine is not on

First I'll ask, do all the dash lights come on when the ignition is turned on? If not, fix the ignition switch first, if they do come on then I'm afraid the stepper motors on your instrument cluster have gone haywire, there are several repair kits for these stepper motor malfunctions available pretty cheap
11/20/2022 6:31:49 AM • 2003 Chevrolet... • Answered on Nov 20, 2022 • 165 views
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El parabrisas de mi camioneta Trail Blazer 2003 al momento de encederla empieza a trabajar y no se detiene, solo al apagarla

puedes mirrar que el relay de los wipers no ests malo o pegado. puede ser que el switche de los palbrisas esta malo o el relay que detiene o trae voltage a los palabrisas. trat de desenchuflar el motor de wipers o busca el relay i lo sacas de puesto mientras que lo puedes arreglar
7/14/2021 9:15:57 PM • 2003 Chevrolet... • Answered on Jul 14, 2021 • 305 views
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What is the firing order

Hello maasdnl,

The firing order is 1,5,3,6,4,2 see image below for cylinder orientation.

netvan_230.png

I hope this helps.

Regards,

Jerry
4/4/2021 2:24:03 PM • 2003 Chevrolet... • Answered on Apr 04, 2021 • 11,959 views
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Which fuse powers the keyless entry for a 2003 Chevy trailblazer

when you take off the fuse cover if you flip it over the fuse locations are marked on the under side of cover
8/18/2019 1:42:59 PM • 2003 Chevrolet... • Answered on Aug 18, 2019 • 1,026 views
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I have a 2003 Chevy trailblazer I had a different dashboard put in and a different stero also now none of my windows work or doors won't lock

Make sure that none of the fuses were shorted out during the replacement. Also make sure that all relays were plugged in on assembly.
3/18/2019 4:24:05 PM • 2003 Chevrolet... • Answered on Mar 18, 2019 • 131 views
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I have a 2003 trailblazer and trans shifts fine from 1 to 2 but when it try’s for 3 all it does is slip then shifts back to 2!! Any ideas for fixes or what could be wrong?

Try an oil and filter change. If that don’t work you need a tranny specialist.
2/20/2019 8:18:33 AM • 2003 Chevrolet... • Answered on Feb 20, 2019 • 82 views
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How do I remove the upper molding on liftgate of my chevy trailblazer

There's a large torx screws hold it on. Cake
2/17/2019 9:49:39 PM • 2003 Chevrolet... • Answered on Feb 17, 2019 • 2,404 views
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Chevy trailblazer 2003 valve cover torque specs

About 15 foot pounds at most
2/9/2019 12:05:12 AM • 2003 Chevrolet... • Answered on Feb 09, 2019 • 2,431 views
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2003 Chevy Trailblazer Cannot seperate differential from oilpan is there a trick?

You have to remove the oil pan first - the diff stays up in the body until you remove the pan, then the diff comes out.
1/24/2019 2:22:50 AM • 2003 Chevrolet... • Answered on Jan 24, 2019 • 474 views
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I have a 2003 trailblazer and the engine fan stays engaged. The temp runs at 210

Jeff, this is a very common problem with our platform. Replace your fan clutch, while you're there, replace your waterpump also, it's cheap and it WILL go out. If you can swing it, buy a Hayden brand fan clutch, or buy one for an 08 or 09', those are better. If you do it yourself, do yourself a favor. Cut a notch in the upper fan shroud where the upper radiator hose is. Will save you tons of time, potential breakage, and frustration.
8/30/2018 9:13:35 PM • 2003 Chevrolet... • Answered on Aug 30, 2018 • 1,848 views
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Lights come on when in off position

Replace #43 Relay under the hood. Could be malfunctioning. There's a recall for this relay also.
7/20/2018 11:47:14 PM • 2003 Chevrolet... • Answered on Jul 20, 2018 • 109 views
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My 2003 trailblazer is having issues starting ,i have to prime it and after it starts it putts and seems not alot of power and stalls

What amount of fuel pressure does it have ?
6/22/2018 7:59:43 PM • 2003 Chevrolet... • Answered on Jun 22, 2018 • 109 views
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Where is the tac module located on a 03 Chevy trailblazer

tac module ?
5/6/2018 5:45:20 PM • 2003 Chevrolet... • Answered on May 06, 2018 • 2,035 views
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03 trail blazer ext. when going down the road from out of no where comes a loud grinding clicking metal on metal noise

If the noise you are referring to is coming from the front, it may be the guy assembly. Easy way to check, lift the front of the car and rotate each wheel by had, if you hear the grinding, your huh assembly needs replacing. Local automotive parts store usually have them in stock for around $104 but if you have a few days to wait, Rock Auto.com can get them to you in a few days for 1/2 the price.
4/15/2018 8:05:16 PM • 2003 Chevrolet... • Answered on Apr 15, 2018 • 172 views
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2003 trailblazer v8 4wd crank but no start. Fuse4 under hood panel has no power. It should be hot in run and start key position. Where does it get power i cant find power side prints

It like this the battery supply's the power to the starting motor to crank the engine over that is a good point to start checking . However the ignition switch opens the circuit like a light switch on your wall open closed. Now you need to figure out what works when the key switch is in run position do you have major power windows seats door locks if so the battery is fine .If not you need to take a good look at the battery TEST IT if that's good then look at the fuse box any fuse that would stop power flow would a 20 to 30 amps yellow or green the # will be on the back of it Next you need look at main connections and grounds like from the battery to the starter and solenoid yank on the cable to the starter from the battery check your main ground cables fusible links look for corrosion. Then you can start thinking about what you need to take APART. 3 will
3/24/2018 2:30:32 AM • 2003 Chevrolet... • Answered on Mar 24, 2018 • 110 views
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My 03 trailblazer LTZ sunroof is stuck open and wont close...motor works but window doesnt move.how do i manually close sunroof...

I recently tried the DIY service and repair manuals from a website and it actually helped me repair transmission problem in my jcb 3cx site-master. it wont move forward or reverse, engine is good both solenoids for forward and reverse work. I don't have much technical knowledge but I just followed it step-wise, and works perfect! got it from www.reliable-store.comAll the best
3/23/2018 3:58:37 PM • 2003 Chevrolet... • Answered on Mar 23, 2018 • 1,453 views
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