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2006 Trailblazer won't start - Discussion on Topix

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Sep 6, 2012 - My 2006 Trailblazer will not start, bought a new battery, still will notstart, not even with a jump. ... i get a jump i drive it and charged the battery it seemed fine but then i went ... Then, next morning, when I turn key, all lights come on and radio... back a day and 360$ well that pos still will crank but will not start. 02 trailblazer a/c problem
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If the harmonic balancer wobbles when the engine is running, it could cause a vibration. A typical balancer has a rubber seal between the balancer and the belt drive pulley. The rubber seal may have deteriorated.

It is possible that the Battery is dead, if you turn the ignition & the engine does not turn over try getting a jump

If you unhooked battery it will need to relearn its idle position, should help if you clean throttle blade edge and body of carbon so proper amount of idle air can enter engine.

Assuming you have a 4.2L engine here is the location.


Hope this helps out,
if so please rate my answers.
Brett

If it was like mine, It sounds like a semi truck instead of a SUV.
It was my fan clutch staying engaged, replace it and everything was back to normal.

Timing chain usually does not cause a miss. It may run sluggish or even backfire, but a miss is like a spark plug with the wire off. Like a dead cylinder. Chevy timing chains do stretch but those engines can handle quite abit of timing. I had one with 120K miles and it was only off 4 degrees. That's nothing for chevy to handle. A tune up is usually nothing but a set of plugs and a hook up to a diagnostic machine. I would look deeper. Go out at night, start the engine with the hood open. Make sure you are in a very dark place. Look for sparks jumping from plug wire. Another way to to use a spray bottle of water. Spray a very fine mist of water around the wires. If they are bad, a spark will jump. Check cap for deposits. You can only hope that the plugs were gapped right.
Good luck

make sure the battery termanals are tight,, give it a jump and see, can't hurt.

burnt a link bar out ??

This is actually an easy swap out. Remove the electrical connection, remove the retaining bolt and pull out old one. I believe the sensor is located in the front passenger side of the engine on this particular model.