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2003 Chevrolet Trailblazer Questions

Get answers to questions about your 2003 Chevrolet Trailblazer at RepairPal. Find solutions, diagnose problems and get back on the road.

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238
questions

I used the air one time and now there is a rattle, what could it be, fan clutch was replaced, new belts, dont know about this

Fan clutch has been diagnised but hasn't caused a problem running until today. Want to know if that could be the cause of my check engine light blinking and engine running very rough.

I have a 2003 Chevy trailblazer. Over some time now I noticed the temperature gauge is below 210. I done some research and read that my temperature sensor could possibly have gone bad. Would that also cause my check engine light to go on as well?

My TB acts like it wants to stall out when sitting in heavy traffic or at a stop light. I want to know if there's any way to bumo up the idle rpm so I won't have this nagging problem anymore. The dealership has told me there's nothing they can do because it's all computer controlled but I'm not convinced without someone hooking up a computer scanner and charge me $500 for the service. I'm frustrated and desperately need help here.
Dave Clemenson

I changed line but could not get cup seal out of rack so I drove it without lines hooked up until pump pulley sheared off. After I replacing pump with used part. it just makes all sorts of noise and started to smoke and still don't have any power steering

put in gear and when you push down on gas paddle I hear a faint roaring noise.

since the 3 days battery discharged
under 11.5 volt.

Is this a transmission problem or shift cable or linkage problem! Have had linkage problems but got fixed!

I haven't 03 Chevy Trailblazer EXT 4 wheel drive LS it feels like it has a governor is kicking in and out automatically dies will restart dies restarts and it's all done eventually it will just not stay running at all even for a second

03 trailblazer shifter moves but wont move

disconnected battery post

The car squeaks over bumps, especially noticed at low speeds, maybe can't tell when going faster due to road noise. Suspension seems tight and no squeaks when I push on the car and I have lubricated everything I can think of.

I have already checked the antenna connections and they seem to be tight.

Change oil light comes on every time I turn the car on, but goes off about 30 secs, even after getting oil changed.

Only works a little. Makes a crunching noise.