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My 2003 trailblazer ran out of gas then when restarted it runs very rough. The take off is slow and loud. What could be wrong?

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  • 4 Answers

Blocked up the fuel filter with dirt. Change it before you burn out the fuel pump.

Posted on Nov 13, 2014

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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fastboyz
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SOURCE: Rough running/Stalling

you need to check your fuel pressure

Posted on Jan 02, 2009

  • 36 Answers

SOURCE: 2003 chevy calalier ls coup 2.2 engine and LEMON YELLOW!!!

If the transmission is full and not slipping what you seem to be describing is a plugged catalytic converter. Are you getting good exhaust pressure when you rev the engine. Usually if you put your hand over the exhaust pipe and then rev the engine you will know if the exhaust pressure increases substantially. If not you can check by undoing the manifold bolts enough to cause the exhaust to leak at the manifold and try again. If it runs good then replace the converter.

Posted on Apr 25, 2009

csmock132
  • 4669 Answers

SOURCE: when you acelerate it makes a loud noise and it

Can you describe the noise. Does it sound like a jet plane.

Posted on May 19, 2009

  • 113 Answers

SOURCE: my 2003 chevrolet trailblazer is idleing rough when stopped

I would start by checking the oil level. See where it is at. Did you have the oil changed by a reputable oil change place or dealership? Let me know if the oil is at the correct level on the dipstick and we can go from there.

Posted on Jul 31, 2009

  • 25 Answers

SOURCE: I own a 2002 Chevy Trailblazer with 4200 vortec

Do you know if the plugs were changed, a bad or broken plug will also cause rough idle and slow acceleration?

Posted on Oct 21, 2009

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1 Answer

What causes bad gas mileage stalling at high speeds and rain idiling rough engine knocking 2003 Isuzu Rodeo


Check the coils, there may be a bad coil. That lets moisture in it, and causes the engine to mis fire. God-Bless! Its worth a try!

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03 chevy trailblazer


IF there are no CEL's, remove fuses #10 and #28. Remove your throttle body and clean it with sensor safe spray like Seafoam. Can reuse the plastic O-ring. After clean, reinstall fuses and drive around for several miles so the computer can relearn.

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Ran out of gas in 2003 trailblazer runs rough ever since and poor fuel milage


I show a fuel filter for the 8 cyl engine so I assume there is one for the 6 cyl too. Around 2004 or 2005 GM stopped using replaceable filters.
I would start with replacing the filter and running a few cans of injector cleaner thru the gas. You may have picked up some dirt from the bottom of the tank.

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Replaced 2 coil packs and still running rough 2003 trailblazer


try replacing or cleaning the injectors
when misfiring moves around it is seldom the coils , plugs and any thing else connected to spark but dirty fuel, low fuel pressure and dirty injectors or injector control
use a quality injector cleaner for a few tankfills

Sep 02, 2012 | 2003 Chevrolet TrailBlazer

1 Answer

Runs rough and loud


Take it to the dealer and ask them what the problem is.

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1 Answer

Ran out of gas now is running rough i replaced the fuel fillter but is still running rough


you will have to clean the fuel injectors and check fuel pressure, maybe the pump is going bad, dont let the fuel pump run without gas, some way gassoline works on the pump as cooling too, and if running dry then it will **** air and burn the pump,

Nov 05, 2011 | 2003 Chevrolet TrailBlazer

1 Answer

I shut my car off at 430 in the morn ran fine but let the gas get real low tried to start it at 100 in the afternoon nothing then it started up after i put in gas but check e light has been on and idles...


if the gas got really low to the point of almost running out it could have sucked some dirt off of the bottom of the tank an clogged the fuel filter,or could have caused a cavitation in the pump do damage to it, I think I would start there if you have had the bad coil replaced.

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1 Answer

Rough running/Stalling


you need to check your fuel pressure

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