20 Most Recent 2002 Chevrolet TrailBlazer Questions & Answers


Shift button on a 2002 trailblazer won't engage

Shift Lock Release
This vehicle is equipped with a shift lock release system.
If your vehicle has a dead battery and you need to
have your vehicle towed, there is a shift lock release
lever that will allow you to move the shift lever out
of PARK (P).
To access the shift lock release lever, do the following:
1. Press on the sides of the boot around the shift lever
to release the boot.
2. Lift up the boot on the shift lever and you will see an
orange lever.
3. Press the orange lever down and move the shift lever
out of PARK (P).
4. Snap the shift lever boot back in place.
8/8/2021 9:54:06 PM • 2002 Chevrolet... • Answered on Aug 08, 2021

Is it possible for a break switch to only work the brake lights and not the safety part of the switch on a 2002 Trailblazer

brake light switch does lights and interlock to shift out of park dont know what 'safety part' your asking about
8/8/2021 9:39:50 PM • 2002 Chevrolet... • Answered on Aug 08, 2021

Where is the oxygen sensor located on a 2002 chevy

On the Air tube intake halfway between air filter and intake!
7/11/2021 4:21:30 AM • 2002 Chevrolet... • Answered on Jul 11, 2021

2002 trailblazer 4.2 4wd i have a code p1345 that

dammed electronics ,bane of my life so your not the only one and in cases like this i can only suggest you bite the bullet and take vehicle to a main dealer .sorry i know this isnt the answer your looking for but from experiance certain things on modern motors you cannot do your self
6/22/2021 2:31:07 PM • 2002 Chevrolet... • Answered on Jun 22, 2021

2002 chevy trailblazer just started running rough

Sounds like the engine is not firing on all cylinders. Check the spark polugs and cables.
5/6/2021 6:33:15 PM • 2002 Chevrolet... • Answered on May 06, 2021

2002 trailblazer rear suspension control arms both sides have rusted out of frame do they make replacement mount for these

You will either have to have a metal shop fabricate new mounts and have them grafted in, cut good ones out of a salvage truck and have them grafted in, or completely replace the frame with a good used one out of a salvage yard.
1/27/2021 2:00:55 PM • 2002 Chevrolet... • Answered on Jan 27, 2021

My "Gate Ajar" light is on eventhough the back

Mine was doing same thing. 03 trailblazer. Mine ended up being the 4 prong connector sensor gear was out of alignment. You have to take the entire latch out to remove the sensors. You can then rotate or realign the gear for the gate ajar switch. This was after realigning the gears.
7/1/2020 9:31:47 PM • 2002 Chevrolet... • Answered on Jul 01, 2020

Replacing license plate lights on Chevy Trailblazer

I just had the same problem. I took the cover off, saw the white bulb base, twisted it to take it out, but it popped back inside the door. I got it out, but it wouldn't pull through, so I twisted it back in place and went to Autozone to get new bulb. Once I saw the new bulb, it was obvious, just the bulb itself pulls out. There's so little room to work, I couldn't get it with just my fingers - - maybe rubber gloves would have worked, but I used pliers, lightly, wiggled it a little and it popped right out. I had a similar issue once with the taillight bulb and had to break the bulb and then grip the remaining filament wires with pliers to get it out, so that was my backup plan, just in case.

Hope this helps others.
3/31/2020 4:40:52 PM • 2002 Chevrolet... • Answered on Mar 31, 2020

Rear wiper will not shut off

The switch is wear I would start.
9/30/2019 4:21:29 AM • 2002 Chevrolet... • Answered on Sep 30, 2019


beleive its 2.5 oz
7/30/2019 9:09:29 AM • 2002 Chevrolet... • Answered on Jul 30, 2019

2002 chevy traailblazer head gasket replacement and put it back to gether

If you are asking how to do this, it is not easy, it is very complex and takes a long time. The big points: Drain the coolant, disconnect battery, take off the intake manifold, take of the exhaust manifold, remove the head, clean the head and check for warp and cracks, clean the block and remove all debris from cylinders, install gasket, put head back on, put manifolds back on, replace coolant, change oil, connect the battery. You may have issues with bolts that break or strip out the block, you should send the head in to be checked, the valves and springs should be checked and those seals replaced, you need special tools and reference materials.
6/27/2019 1:43:47 PM • 2002 Chevrolet... • Answered on Jun 27, 2019

Locate camshaft sensor 2002 chevy trailblazer

Assuming you have a 4.2L engine here is the location.

Hope this helps out,
if so please rate my answers.
6/27/2019 1:43:19 PM • 2002 Chevrolet... • Answered on Jun 27, 2019

Where is the bcm located in a 2002 trailblazer?

The BCM is attached to the fuse block under the second row seat on the drivers side.
6/27/2019 1:42:38 PM • 2002 Chevrolet... • Answered on Jun 27, 2019

Eng. code P1484

P1484 - Cooling Fan System Performance

06-06-2005, 10:51 PMHere's what the GM Manual says about this code:

The cooling fan relay sends a pulse width modulation (PWM) signal of 12-14 volts to the cooling fan clutch through the cooling fan clutch supply voltage circuit. The powertrain control module (PCM) uses this PWM signal in order to control the speed of the cooling fan clutch. The signal controls the position of the oil control valve inside the cooling fan clutch. If the cooling fan RPM is different than the PCM is expecting, DTC P1484 will set. The actual cooling fan RPM vs the desired cooling fan RPM is not always exactly the same. There can be up to an 800-RPM difference.

The engine is running.
The system voltage is greater than 8.5 volts.
The intake air temperature (IAT) is greater than -7°C (19°F).
DTCs P1481 and P1482 are not set.
The engine speed is less than 3200 RPM.
The engine speed is not changing more than 250 RPM for 5 seconds.
Fan command is greater than 0%.

The maximum allowable error of 1000 RPM in the cooling fan speed occurs for 100 seconds.
The PCM detects that the cooling fan clutch is locked up.

The Reduced Engine Power indicator illuminates only if the PCM detects that the cooling fan clutch is locked up.
The PCM illuminates the malfunction indicator lamp (MIL) during the second consecutive trip in which the diagnostic test has been run and failed.
The PCM will store the conditions as Freeze Frame/Failure Records data.
The PCM commands the cooling fan clutch to 100%.

Follow this procedure in order to clear DTC P1484 after completing a repair.

Use the Clear DTC Information function on the scan tool.
Perform an ignition key cycle.
The PCM turns OFF the MIL after the third consecutive trip that the diagnostic test has run and passed.

The history DTC will clear after 40 consecutive warm-up cycles have occurred without a malfunction.

An inline connector could cause an intermittent DTC. Ensure to test for poor connections and pin retention at all inline connectors. Refer to system schematics for connector and locations.
If the condition is not present, refer to Testing for Intermittent and Poor Connections in Wiring Systems.

Disconnect the harness connector of the cooling fan clutch from the shroud. Inspect the exposed wires between the harness connector and the tubing.
If DTCs P1484 and P0113 are set, and the weather conditions are cold, the cooling fan code may be false. Clear DTC P1484, and after an IAT sensor check, allow the DTC to reset .

I'd say that 'fan clutch is faulty' is your problem, based on the information you gave. Thank you for using Fixya and good luck

6/27/2019 1:42:30 PM • 2002 Chevrolet... • Answered on Jun 27, 2019

2002 trailblazer security fuse location

You can get guide from many sites.. i know few error codes/ fault codes, wiring diagrams, schematic diagrams, torque specs, engine info, switches functioning, assemble, disassembly, com plete refurbish, repair, installation every single thing is covered within seconds u can get the access and it's totally illustrative complete
6/27/2019 1:42:21 PM • 2002 Chevrolet... • Answered on Jun 27, 2019

Did the 2002 trailblazer come with an interference engine

Non-interference engine with a timing chain.
6/27/2019 1:42:10 PM • 2002 Chevrolet... • Answered on Jun 27, 2019

Horn works when steering wheel is turned to left on my 2002 Chevy trailblazer

You need a new airbag module.
6/27/2019 1:41:40 PM • 2002 Chevrolet... • Answered on Jun 27, 2019

2002 Chevy trail blazer

very easy just go to reliable-store,com it has all manuals there many other websites also but in this matter this website is too good
6/25/2019 5:05:33 PM • 2002 Chevrolet... • Answered on Jun 25, 2019
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