2004 Chevrolet Trailblazer ext 370 problems

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The Chevrolet TrailBlazer (also known as Trailblazer) is a mid-size SUV produced by Chevrolet, a division of General Motors. The nameplate was first used in North America from 2001 to 2008; in 2009, it was replaced by the Traverse, as a crossover SUV. In 2011, production of a newly-redesigned version of the Trailblazer for the Asian and Brazilian markets began.

Blazer trim line (1998)

The TrailBlazer name was first introduced for the 1999 model year as an upscale trim level of the compact 4-door Chevrolet S-10 Blazer. It offered additional features on top of the previously top-of-the-line Chevrolet S-10 Blazer LT trim level, including an AM/FM stereo with single-disc CD player and optional remote cassette player, OnStar, color-keyed front and rear bumpers, side cladding, a leather-wrapped steering wheel, upgraded alloy wheels, a full-size spare tire and wheel, and upgraded cloth seating surfaces with power front bucket seats. Options such as a Bose premium sound system, leather-trimmed seating surfaces with heated front seats, power sunroof, and gold accents for the exterior emblems were all available for the original TrailBlazer trim package. The TrailBlazer trim was discontinued after 2001, when an all-new TrailBlazer model was introduced as a mid-size SUV. Production of the S-10 Blazer overlapped until the 2005 model year.

First generation (KC; 2001)

The first-generation TrailBlazer is based on a truck platform officially known as GMT360, with all models having four-wheel-drive layout as an option with both automatic engagement and the more traditional "Auto," "2-High," "4-High," and "4-Low" gearings, except the SS model which features an all-wheel-drive system. The TrailBlazer features an independent front suspension, and a five-link rear suspension. A G80 locking rear differential is available as an option on all models except for the SS, which has a G86 LSD as standard. An LTZ trim level had upgraded interior features (leather), upgraded sound system (Bose), and alloy wheels. All TrailBlazers came factory-equipped with a detachable towing hitch.

The TrailBlazer was updated in 2005 for the 2006 model year. An updated front fascia on all models (except for the base version) and new interior trim were included with the refresh. The SS received trim-specific front and rear fascias plus color-matched side skirts.

2004 Chevrolet Trailblazer ext 370

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Common 2004 Chevrolet Trailblazer ext 370 problems

Based on the complaints from owners of the 2004 Chevrolet TrailBlazer EXT 370, several common problems have been reported:

  • Electrical System - Front Seat Belts Locking Up: Front driver and/or passenger seat belts have been reported to lock up in the retracted position, posing a safety concern.
  • Electrical System - Multiple Concerns and Diagnostic Trouble Code U1064: Various electrical concerns and diagnostic trouble codes, including U1064, have been reported in models like the 2005 Buick Rainier and 2005 Chevrolet TrailBlazer.
  • 4WD/AWD Issues: Some owners have faced challenges with the 4WD functions of their TrailBlazer. Issues related to the Service 4WD light, 4x4 selector switch, Transfer Case Control Module (TCCM), and motors like the Transfer Case Encoder Motor and Front Axle Disconnect Actuator have been highlighted.

These problems encompass a range of safety, electrical, and mechanical issues that owners of the 2004 Chevrolet TrailBlazer EXT 370 have encountered.

2004 Chevrolet Trailblazer ext 370 engine

What problems does the 2004 TrailBlazer have?

Owner Reported Trouble Spots

  • Brakes. Premature pad/rotor wear, pulsation or vibration, antilock system, parking brake, master cylinder, calipers, squeaking, brake failure, regenerative braking. ...
  • Engine Electrical. ...
  • Climate System. ...
  • Engine Minor. ...
  • Fuel System/Emissions. ...
  • Engine Cooling. ...
  • Transmission Minor. ...
  • Engine Major.

Is there any recalls on a 2004 Chevy TrailBlazer?

DEALERS WILL INSPECT THE TAIL LAMP/STOP LAMP ASSEMBLIES, AND IF NECESSARY, REPLACE THEM. THE RECALL BEGAN ON NOVEMBER 22, 2004. OWNERS SHOULD CONTACT CHEVROLET AT 1-800-630-2438, OLDSMOBILE AT 1-800-630-6537, BUICK AT 1-866-608-8080, OR GMC AT 1-866-996-9463.

How much is a 2004 Chevy TrailBlazer EXT worth?

How much is a 2004 Chevrolet TrailBlazer EXT worth? The value of a used 2004 Chevrolet TrailBlazer EXT ranges from $781 to $3,436, based on vehicle condition, mileage, and options.

What was the worst year for the Chevy Trailblazer?

Be cautious of Trailblazers from 2002-2005, because they have a worrying number of recalls and registered complaints. For those needing a three-row SUV, 2006 stands as the last (and best) year for the extended-wheelbase EXT Trailblazer, offering seating for up to seven.

What problems does the 2004 Trailblazer have?

Owner Reported Trouble Spots

  • Brakes. Premature pad/rotor wear, pulsation or vibration, antilock system, parking brake, master cylinder, calipers, squeaking, brake failure, regenerative braking. ...
  • Engine Electrical. ...
  • Climate System. ...
  • Engine Minor. ...
  • Fuel System/Emissions. ...
  • Engine Cooling. ...
  • Transmission Minor. ...
  • Engine Major.

What are the bad years for Chevy Trailblazer?

Key Points. Considering reliability, cost, features, and more, the best years for the Chevy Trailblazer include 2006, 2008, and 2009. Be cautious of Trailblazers from 2002-2005, because they have a worrying number of recalls and registered complaints.

Is the Chevy Trailblazer a reliable car?

The 2023 Chevrolet Trailblazer has a predicted reliability score of 86 out of 100.

Why is my 2004 Chevy Trailblazer running rough?

The most common reasons a Chevrolet Trailblazer has rough idle are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil.

2004 Chevrolet Trailblazer ext 370 complaints

The NHTSA has received 0 complaints about various vehicle components related to the 2004 Chevrolet Trailblazer ext 370.

You can leave your car complaint via the special form below.

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Additional sources

More sources of information about 2004 Chevrolet Trailblazer ext 370 problems:

Having 4WD(4x4) issues? Look inside! | Chevy TrailBlazer ...
Having 4WD(4x4) issues? Look inside! | Chevy TrailBlazer ...
https://www.trailvoy.com/threads/having-4wd-4x4-issues-look-inside.81739/

Dec 11, 2010 ... Information in this thread applies to 360/370 trucks with selectable 4WD functions (TrailBlazers, Envoys, Ascenders?). Trucks with non ...

Ac intermittent at times 2003 TB - Blazer Forum - Chevy Blazer Forums
Ac intermittent at times 2003 TB - Blazer Forum - Chevy Blazer Forums
https://blazerforum.com/forum/trailblazer-gmt360-gmt370-2002-2009-tech-43/ac-intermittent-times-2003-tb-45247/

Jun 2, 2010 ... Starter issues - sometimes it starts, other times it doesn't · Gas Fuel light stays on all times very dim · TrailBlazer GMT360/GMT370 (2002-2009) ...

Gmt 360/370 | Chevy TrailBlazer, TrailBlazer SS and GMC Envoy ...
Gmt 360/370 | Chevy TrailBlazer, TrailBlazer SS and GMC Envoy ...
https://www.trailvoy.com/threads/gmt-360-370.153105/

May 23, 2015 ... GMT370 is the long whelbase versions of the Trailblazer and Envoy with XL and EXT designations respectively. ... Turn off your engine (make sure ...

TrailBlazer GMT360/GMT370 (2002-2009) Tech [Archive] - Blazer ...
TrailBlazer GMT360/GMT370 (2002-2009) Tech [Archive] - Blazer ...
https://blazerforum.com/forum/sitemap/f-43.html

2005 Chevy trailblazer ls · Does anyone know??! 2004 trailblazer no A/C · WEIRD turn signal stuff on 2008 TB · Starts By Itself · Transmission Problems · 07 ...

2004 trailblazer ext LS fresh air actuator problems. | GMTNation
2004 trailblazer ext LS fresh air actuator problems. | GMTNation
https://gmtnation.com/forums/threads/2004-trailblazer-ext-ls-fresh-air-actuator-problems.17048/

May 4, 2017 ... Haven't heard of anyone having to replace that one. Here's a post on the actuator locations in general. a/c control issues 2005 TB Maybe it can ...

Other years of Chevrolet Trailblazer ext 370

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Trailblazer ext 370 2005
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2004 Chevrolet Trailblazer ext 370 photo