Question about 2003 Chevrolet TrailBlazer

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When my 2003 trailblazer is running it sounds like a jack hammer

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Your symptom is vague. You could be talking about a bad lifter or crank bearing. A cracked/damaged flywheel or toque convertor could be to blame as well. Also a broken exhaust manifold or blown manifold gasket could be what your talking about too. Please write back with what you have inspected or tested so far. They sell a tool called a stethoscope. This tool is great to help pin point mechanical noises. Look into one, it may help you. Write back anytime if you have more questions, good luck.

Posted on Apr 13, 2014

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I was told tha the hrottel body is bad

Posted on May 16, 2014


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Posted on Jan 02, 2017

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4 Answers

2003 trailblazer has new battery, but will not crank but all dash lights come on

Check the starter, check the cable that goes from the battery to the starter. make sure its tight and not loose. take a hammer and tap on the starter. If the vehicle still doesn't start. Change the starter.

Sep 02, 2014 | 2003 Chevrolet TrailBlazer

1 Answer

My 2003 trailblazer sounds like a jack hammer when running and has no power, what could this be?

Probably a bad ignition module as it would seem that more than one cylinder would be dead in order to make a jackhammer sound. There are many other possibilities but much more information would be needed.

May 29, 2014 | 2003 Chevrolet TrailBlazer

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My 2003 trailblazer sounds like a jack hammer when running and has no power, what could this be?

Hard clunking and hard rap is you spun a bearing. A ticking sound its your lifters.

May 29, 2014 | 2003 Chevrolet TrailBlazer

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My trailblazer is doing the same thing. Plus after that made my engine sound terrible like cans clankinf. Sounds like something is spinning very quickly too. Never seen such crazy crap. Junk.

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Need to replace your fan clutch. It's constantly engaged, sounding like an airplane. Common problem for Trailblazers and Envoys.

Apr 20, 2011 | 2003 Chevrolet TrailBlazer

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Usually, there is a small hole that the long jack handle can fit into, look around the bumper area, you may have to open doors for access to it, this has a winch, turn counter clockwise to lower, usually....

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2003 Chevy Trailblazer wont start

it sounds like your battery is dead charge it and try again if the starter still clicks it means it is sticking get someone to turn the key while you hit the starter body with the handle of a hammer which will free it of

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it's possible the gasket could be sticking. give a few taps with a hammer just dont go crazy on it, i think it's aluminum. hit it on a well reinforced part, or use a block of wood to spread out the blow.

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