Top 5 Problems Chevy Trailblazer SUV 1st Generation 2002-09

Here are the Top 5 Problems with the 1st generation Chevy Trailblazer, which runs from model year 2002 to 2009! In this video, Andy points out the most common problems or failures on the 1st gen Trailblazer, and offers tips and suggestions on how you can fix them! If you own a Trailblazer, or know someone that does, check out this video and share it with them!

For more tips and tricks, check out this playlist:

0:00 Top Problems Chevy Trailblazer 1st Gen 2002-09
0:21 Fuel Level Sensor
1:17 Blower Motor Resistor
1:50 Fan Clutch
2:38 Valve Seats
3:39 Front Wheel Bearings

⚠ DISCLAIMER:
While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.

[AAuto]

√ *Watch the Video*
√ *Do it Yourself*
√ *Save Money*

[meachy]

They left off the #1 thing that will break that everyone has had happen. Center console breaks starting with the latch then eventually the whole thing. Brilliant move making the frame out of the cheapest plastic ever.

[JamesMKE]

My TrailBlazer has been very good to me over the years its at 204k miles atm still running smooth as ever.

[BigRuskie]

Shifter cable linkage breaking was a big issue too.

[tony]

I bought a 2006 TrailBlazer LS with 150k miles in mid 2018 as a vehicle primarily to get to and from work. Since my ownership, the Check Engine light came on, trailing arm snapped and the door trims popped and snapped off. For the holidays I drove 1800 miles to California and eventually gave it to my parents since they wanted an off-roader for the desert.

It still runs as of January 2022 with around 175k miles, it's just that every service/warning light comes on lol.

[TomScott__]

Yep. I had all these problems on my 2006 with 400, 000 miles except the misfire was from a bad coil.

[charlespayne]

This videos sometimes are like a gold mine

[LethalAtma]

The only problem I have with my fuel sensor is that it falls from one side to the other too quickly

[ramanpreciado]

Trailblazers, one of the best SUVS out there.

[mrblack]

I had an 03 and I put 200k miles on it. I experienced almost all of these problems including multiple wheel bearings. Still was a good truck and would love to own an SS someday

[DAJANEM]

I just bought a 2003 Trailblazer with 110k miles. So much better than the newer 3.6L engines. I had a complete detail done and it looks almost new. My wife and 18 y/o son hated it before now they love it. So far it’s been a great buy.

[kamaster]

Owning a Envoy I can confirm, the fan clutch and resister are very true 😂

[bmxlife]

Bought my 04 LS utility sport 4.3 blazer for $800 only 3 lights and none are check engine lights, has 150k runs and drives and she is amazing.❤ love Chevy so much

[fujhita]

Amazing!

My ‘05 Trailblazer had a misfire yesterday and it was the #4 coil!!!!

[your_fbi_agent]

About a month ago my cylinder 1 ignition coil completely died on me. Keep in mind they were the original Delphi branded coils too so I'm surprised they've lasted 17+ years. I didn't bother just changing one out because it would just rainbow effect on the others so I replaced all of them.

[unclebishoppeskitchen]

Nice, I said it not too long ago you guys should do more trailblazer videos. You delivered. I'm actually learning these things blow through transmission fluid pumps as well. LoL. I'm actually so fed up doing swaps that I'm currently rebuilding mine with all the necessary upgrades to hopefully prevent it from happening again any time soon.

[geraldevans]

He forgot to tell you the #4 misfire is often from leaking hood seal, which allows rain to run off the windshield and collect on top the engine, and run down into the spark plug well

[willieevans]

i have a 07 ls and i love it.it gives me a great smooth ride

[dianaswanson]

Just turned 400, 000 on my 2002 TB. Love this truck. No issues at the moment.

[andersonsautohowto]

I’ve got a 08 blazer lt has 324k and runs and shift smooth as ever