20 Most Recent 2004 Chevrolet TrailBlazer Questions & Answers

you should checkout this website www.reliable-store.com that has books on all vehicles, name it they have it.

it covers wiring diagrams, electrical diagrams, fuse diagram, torque specs, PCV, error codes, fault codes, service info, repair info, owner's/service/repair/maintenance manuals etc everything totally..
I have ford expedition and I keep servicing and when needed repair it on my own. worth it !!!

2004 Chevrolet... | Answered on Mar 16, 2018

replaced brake switch ??? If you don't know how to read a wiring diagram an use a volt meter to test electrical circuits ,your better off taking your vehicle to a qualified repair shop .

2004 Chevrolet... | Answered on Mar 13, 2018

Here are the factory wire colors.
2004 Chevrolet Trailblazer Car Stereo Radio Wiring Diagram
Car Radio Constant 12v+ Wire: Orange
Car Radio Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger: Pink
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Front Speakers Size: N/A
Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Rear Speakers Size: N/A
Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

2004 Chevrolet... | Answered on Mar 13, 2018

many seem to be able to clean that sensor
in case you mess it up , there are plenty of good cheap sensors at the wreckers/junk yards
you were never told a fault code so go some where else and have the fault codes read as it may not have even been that sensor at fault

2004 Chevrolet... | Answered on Mar 08, 2018

If you have replaced the blower motor and the blower resistor, you must have a failed blower switch. Also look for indications of overheated connectors/terminals. Blower motors draw high amperage when operation on high speed, many times melting the plastic connectors housing the spade terminals carrying the heavy current load.

2004 Chevrolet... | Answered on Mar 02, 2018

Remove the thick plastic panel. If I recall, there is 1 torx screw (I could be wrong), but rest are clips, just pops off.

2004 Chevrolet... | Answered on Feb 21, 2018

Ignition Lock Cylinder Control Actuator
If the vehicle is equipped with a floor mounted console gear shifter, it has a ignition lock cylinder control actuator system in the steering column as an added safety feature. The ignition lock cylinder control actuators purpose is to prevent the steering wheel from being locked when the transmission is in gear and the vehicle may still be moving. The column ignition lock system consists of a ignition lock cylinder control acutator, and a park position switch that is located in the A/T shift lock control switch. The ignition lock cylinder control acutator contains a pin that is spring loaded out to mechanically prevent the ignition key cylinder from being turned to the lock position when vehicle transmission is not in the Park position. If vehicle power is lost, and/or the transmission is not in the Park position the operator will not be able to turn the ignition key to the lock position and will not be able to remove the ignition key from the column.

2004 Chevrolet... | Answered on Feb 15, 2018

Very carefully, there should be locks on top of injectors or you can pull injectors and rail all together

2004 Chevrolet... | Answered on Feb 14, 2018

To access the wiper, remove plastic cover. Remove nut on wiper arm. Carefully pull off wiper arm. Replace with new wiper assembly. Remember where wiper arm was and reposition it. Put nut on and tighten. Do not over tighten. put plastic cover on and your done.

2004 Chevrolet... | Answered on Feb 11, 2018

I suggest you get one of those manuals people get nowadays to do it yourself..
My nephew use it to repair my car and it's totally repaired now. Here's the website he bought it from.
try reliable-store com
manuals costing as low as $4.. some even free
also try manualslife

2004 Chevrolet... | Answered on Feb 08, 2018

Probably going to be your secondary air injection for the I6 engine. Normal for this to start "humming" at start up then disappear.

2004 Chevrolet... | Answered on Feb 05, 2018

It covers all under repair manual. I have visited this website 2-3 times for the repair of volvo v70 and vw manuals. They provide all kinds of manuals at a very cheap rates. Check it may be you will get something useful Best Manuals

2004 Chevrolet... | Answered on Feb 03, 2018

I'd take it to an parts store and get a reading. Sounds like a MAF sensor possibly.

2004 Chevrolet... | Answered on Jan 31, 2018

Check the belt tensioner to see if it's weak or worn. See post below. The compressor sound may be the secondary air pump kicking in. If so, that's normal on a cold start
Diagnose belt tensioner

2004 Chevrolet... | Answered on Jan 27, 2018

Hello Linda! Replacing the HDM relay for the low beams will not trigger any of these problems. If the blower isn't working, you probably need to get a new blower motor resistor (for manual controls) or blower motor module (looks the same) for automatic climate control. To access, need to remove the plastic kick panel near your feet on passenger side. After removed, look up you'll see the resistor, it's about 4" long with 2 small screws in it. You'll also need to drop the glovebox door to remove the connector from the resistor to the motor. Suggestion- buy a pig tail for the resistor also, these tend to melt. Very common problem. The ABS dash could be a bad wheel hub assembly or a hub starting to go bad.

2004 Chevrolet... | Answered on Jan 25, 2018

Front fuse box

Rear fuse box


2004 Chevrolet... | Answered on Jan 19, 2018

Your door lock mechanism is wire not rods. That's why door won't open. Need to get power somehow. Look under car and see of you can reach up to the hood latch and release mechanism to open hood. If so open hood and hook up a jumper pack. This should allow you to unlock door.

2004 Chevrolet... | Answered on Jan 16, 2018

For engine to run it has to have:
Fuel, air and spark.
So if it doesn't start, something's missing.
Is your fuel pressure OK? Is your spark present? Is ECM firing injectors?
Check all those basics and I'm sure you'll find what's wrong.

2004 Chevrolet... | Answered on Jan 10, 2018

check if the speed sensor melted again. Then you have a problem of figuring out where the short is.
You'll need a mechanic to help with that cuz the variables are a lot.
but double ck the wiring going into the speed sensor for fraying/broken wires., look in the connector to see if there is any gunk.
hope this helps a little.

2004 Chevrolet... | Answered on Jan 09, 2018

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