20 Most Recent 2003 Chevrolet TrailBlazer Questions & Answers

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 ..

Question edited for clarity. Question moved to model category. Wiring diagram with colours. https://www.trailvoy.com/threads/wire-diagram-of-brake-lights.212025/ more here https://www.google.com/search?q=2003+Chevy+Trailblazer.+tail+light+wiring+diagram ..

Right below the volume knob, there are 2 little black buttons that are hard to see. The left button is for hours, the right for minutes.

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

Question edited for clarity. Question moved to model category. Pictures and videos https://www.google.com/search?q=2003+Chevy+Trailblazer+TCM+location

pcm tcm location?

https://www.trailvoy.com > ... > Engine Tunes/Mods Aug 18, 2008 - It is in the engine bay on the driver front side of the motor. Look at the battery and just below it is the ECM/TCM on a bracket right beside ... [SOLVED] - Transmission Shifting Issues Mar 26, 2011 Additional "TCM" Transmission Control Module Dec 23, 2014 A "how to" for removing the ECM/TCM Apr 9, 2006 TCCM Replacement How To Dec 13, 2008 More results from www.trailvoy.com

think you have damaged the heating control computer from the sound of it

you need to check window regulator available on line about $60.00 with motor

shift control solenoid ? Inside Pan ..Drop pan and you will see all the shift solenoids

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

Hello maasdnl,

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



I hope this helps.

Regards,

Jerry

when you take off the fuse cover if you flip it over the fuse locations are marked on the under side of cover

Could call it a door lock assembly rod.

Make sure that none of the fuses were shorted out during the replacement. Also make sure that all relays were plugged in on assembly.

Try an oil and filter change. If that don’t work you need a tranny specialist.

There's a large torx screws hold it on. Cake

About 15 foot pounds at most

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.

Your heating system is broke in the dash. The doors or gates that change where the air is to go, has a broken hindge or actuator. Your heat is set to defalt to the defrosters as a safety thing. The vibration, I would say, is your fan & it may have been the thing that started your whole problem. The fan has something wrong W/ it, weather it has dropped, the shaft that it runs on is bad, or it is just going to the bad. To fix, the whole dash has to be dropped so that the gates or doors can be accessed for repairs & the fan, it's half in & half out of the passenger compartment. I've had 3 or 4 dashes out to do this work but it is TIME CONSUMING. Wish you the best, GOD BLESS.....

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.

Replace #43 Relay under the hood. Could be malfunctioning. There's a recall for this relay also.