Chevrolet TrailBlazer Chevrolet TrailBlazer

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Chevrolet TrailBlazer repairs by problem area

Engine (31%)

Transmission and Drivetrain (9%)

Brakes and Traction Control (7%)

Suspension and Steering (20%)

Electrical and Air Conditioning (26%)

Paint, Rust, Leaks, Rattles, and Trim (2%)

Other (3%)

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Chart based on 500 repairs.

Chevrolet TrailBlazer transmission repair cost distribution

$2500+ (0%)

$1000 - $2499 (13%)

$500 - $999 (16%)

$100 - $499 (51%)

< $100 (20%)

Chart based on 69 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2008 Chevrolet TrailBlazer 4dr SUV

285-horsepower 4.2L I6 4-speed automatic 4WD w/low range

54560 mi

C $420
replaced rear diff u-joint, $170 
97000 mi

US $600
leaking front axel seal. 
37000 mi Warranty repair. Front differential (4WD) pinion seal was leaking. It was replaced. This was the first repair on the truck in the 5 years that I have owned it. First time that has ever happened. 

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2007 Chevrolet TrailBlazer 4dr SUV

395-horsepower 6.0L V8 4-speed automatic AWD

8000 mi transmission failure 

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2007 Chevrolet TrailBlazer 4dr SUV

291-horsepower 4.2L I6 4-speed automatic 4WD w/low range

93000 mi

US $530
Transmission cooler lines replaced after noticing transmission fluid dripping from underside (no abnormal mechanical operation). All four lines were corroded; two failed. Replaced all four lines to ensure no future problems. 

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2006 Chevrolet TrailBlazer 4dr SUV, ext.

291-horsepower 4.2L I6 4-speed automatic 4WD w/low range

56000 mi

US $450
Sounded and felt like TB was stuck in 4 wh drive. Took it to dealer; it had a "bad" hub. Was replaced under my extended warranty within a day and is back to running smooth and quiet. 
104300 mi

US $132
front differential pinion seal was leaking 

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2006 Chevrolet TrailBlazer 4dr SUV

395-horsepower 6.0L V8 4-speed automatic AWD

69300 mi

US $120
Replaced bearings and thrust washers in passenger side carrier for CV axle. Also ported for gear oil as stock grease fill is not serviceable and is prone to failure. 
71000 mi

US $115
Changed front hubs. Significant humming noise like tires with heavy tread noticed in driver side which prompted the change. Noise completely gone with new hubs. 
88000 mi

US $163
Replaced loose upper ball joints with Driveworks brand and replaced CV axles with Cardone. No alignment necessary. Added fill tube to passenger carrier housing and sealed with RTV silicone 
20000 mi rear end replaced 
35000 mi Sun gear went out in transmission, whole transmission replaced 

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2006 Chevrolet TrailBlazer 4dr SUV

291-horsepower 4.2L I6 4-speed automatic RWD

91000 mi

US $1750
Ruptured seal in the rear differential. Diff oil leaked onto brakes which also needed to be replaced as a result. Rear diff seals replaced. 

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2006 Chevrolet TrailBlazer 4dr SUV

291-horsepower 4.2L I6 4-speed automatic 4WD w/low range

147000 mi

US $600
Forward sprag broke, according to shop. Too expensive to repair, so I sold the truck in a broken state. 
32000 mi Fluid leak at the front diff pinion seal. 
56300 mi During a routine oil change I was told I had a front differental pinion seal leak. I am going to my local mechanic for a second opinion. Repair could cost $150 - $300. 
63000 mi Front differential bearing seal leak. Rear 4 months earlier. 

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2005 Chevrolet TrailBlazer 4dr SUV

275-horsepower 4.2L I6 4-speed automatic 4WD w/low range

151000 mi

US $19
added 2 quarts. 1 quart was the Lucas brand, AUTOMATIC TRANSMISSION FLUID CONDITIONER. Embarrassed about this, I have never let this happen before. Was wondering why on cold mornings I had to rev a bit to get it moving. 
155000 mi

US $350
The transmission fluid lines that circulate the fluid through the radiator transmission fluid cooler, both corroded. I had to replace the lines. 
90700 mi

US $350
Replaced left front half axle. 

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2004 Chevrolet TrailBlazer 4dr SUV

275-horsepower 4.2L I6 4-speed automatic RWD

84000 mi

US $980
TrailBlazer would not move. Transmission required a complete rebuild. 

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2004 Chevrolet TrailBlazer 4dr SUV

275-horsepower 4.2L I6 4-speed automatic 4WD w/low range

167000 mi

US $375
Transmission cooler lines rusted and leaking where they connect to inner fender well with clip. Replaced all four pieces of the line. 
133000 mi

US $1190
Replace Transmission 
185380 mi

﷼1300
Noise coming from under the car. Upon inspection turned out that a part of the front axle was loose. It was the base of the front axle. 
203980 mi

﷼113
Rubber parts on front axle wore down. Grease was leaking. Rubber parts were changed. 
47700 mi

US $244
Replaced transmission cooler lines. 

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2003 Chevrolet TrailBlazer 4dr SUV, ext.

290-horsepower 5.3L V8 4-speed automatic 4WD w/low range

53300 mi

US $500
Front left axle seal leaking; seal replaced & axle fluid re-filled. 

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2003 Chevrolet TrailBlazer 4dr SUV, ext.

275-horsepower 4.2L I6 4-speed automatic 4WD w/low range

120000 mi

US $2000
front differetial 
77000 mi

US $200
Leaking front axle shaft seal 
138000 mi

US $2200
Rebuilt transmission due to bad torque converter causing internal damage. 
143000 mi

US $10
Shifter cable bushing fell out, causing shifter to disconnect from transmission. Purchased and installed new bushing. 
126700 mi

US $1100
Transmission would not shift automatically. Manual selection on shifter still worked to upshift and downshift. 
156700 mi

US $1800
Transmission leak repair 
189000 mi

US $1100
Rattling noise in front axle. Shop discovered loose connection to passenger-side front half axle at transfer case. Decoupler needed to be replaced. No new parts available at any price. Replaced with rebuilt used part. 

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2003 Chevrolet TrailBlazer 4dr SUV

275-horsepower 4.2L I6 4-speed automatic RWD

165000 mi

US $650
Complete transmission rebuild. 
167000 mi Broken transmission pump, replaced under garage's warranty. 

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2003 Chevrolet TrailBlazer 4dr SUV

275-horsepower 4.2L I6 4-speed automatic 4WD w/low range

79000 mi

US $30
Resealed differential due to leaking. Drained and refilled with new gear oil. 
128000 mi

US $2
Replace all transmission line due to leaks from corrosion on lines. 
72000 mi

US $35
Transmission had to be overhauled 

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2002 Chevrolet TrailBlazer 4dr SUV

270-horsepower 4.2L I6 4-speed automatic 4WD w/low range

71000 mi

US $830
Also found CV joint boot defective. dealer also found several other high cost items defective. 
158000 mi

US $161
Front differential seal replacement including labor and parts. 
86000 mi

US $880
R/F CV and Bearings 
147000 mi

US $425
Lines to Transmission corroded, leaked, and popped off. 
126000 mi

US $200
The 4wd was not working and they had to replace the switch. 
154700 mi

US $350
Transmission fluid leak. A transmission line to the radiator had corroded through and started leaking. All 4 lines were replaced to save a future trip to the shop. 

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Chevrolet TrailBlazer Transmission Problems

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