Print this page Notes: Carrying the not-so-proud traditions of its 2002 predecessor, the 2003 has a handful of instrument panel malfunctions that can leave you guessing your speed, engine temperature or how much gas is left in the tank.


really awful
Typical Repair Cost:
Average Mileage:
74,300 miles
Total Complaints:
3 complaints

Most Common Solutions:

  1. replace engine (2 reports)
  2. not sure (1 reports)
2003 Chevrolet Trailblazer engine problems

engine problem

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2003 Chevrolet Trailblazer Owner Comments

problem #3

Aug 152008

Trailblazer V6

  • Automatic transmission
  • 79,000 miles


We went on a week family vacation to Gatlinburg, TN. We had the oil changed before we left and keep records of all prior changes that were done on schedule. It was only a 5-6 hours trip one way. It seemed to be taking the mountains just fine but once we returned home, the next day it started ticking so I took it back to the Dealer the next day for the sound got louder and they said that the engine must have been deprived of oil and needed a new engine. Well I got my history of oil changed and took it to them and they covered $1200.00 and I had to pay $800.00. Geeeees!!!

- , Indianapolis, IN, USA

problem #2

Aug 142007

(reported on)

Trailblazer LX V6

  • Automatic transmission
  • 64,000 miles

SouthPoint Chevrolet in Tulsa Oklahoma twice said my engine was low on oil. A month after they changed the oil and supposedly checked for the engine rattle I reported, the engine began rattling again, louder and louder, I took it in, they said the main bearing was out due to low oil. I took it to another dealer and they advise there is a notice from Chevrolet of Cracked Blocks in the 2003 range, no recall, but they had already replaced one engine. Southpoint never looked on the Chevrolet notices, I am still waiting to see if the manufacturer will cover it. The new dealer advises Southpoint should have done an oil consumption check.

- , Tulsa, OK, USA

problem #1

Jul 122007

(reported on)

Trailblazer LX 3.2L V6

  • Automatic transmission
  • 79,900 miles

My husband and I purchased the extended warranty for up to 75,000 miles and we have 79,900 and now we are being told we need a new engine. Waiting to hear if they are going to assist- but being told that they will probably not fix it and cover it 100%- FYI

- , Florissant, MO, USA

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