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I ran out of gas in my 05 trailblazer and now it's running very badly, misfiring and using lots of gas

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  • Cars & Trucks Master
  • 447 Answers

You may have had some gunk in the tank. When you ran out it could have sucked up all those particles, plugging your filters; possibly even the sock over the fuel pump in the tank. Start by changing the fuel filter that is in-line on the underside of the vehicle.

Posted on May 11, 2014

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Posted on Jan 02, 2017

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SOURCE: 2005 chevy colorado runs rough and gets bad gas mileage.

Sounds like it needs spark plugs and wires, and a fuel system treatment.

Posted on Oct 08, 2008

  • 38 Answers

SOURCE: RAN OUT OF GAS NOW IT IDLES REAL BAD

With electric pumps, when you run them dry it can damage them. You may have just picked up some rust or stuff sitting in the bottom of the tank. This could be clogging your fuel supply. several things can be done, if so equipped have the injectors cleaned, add a fuel cleaner to your tank such as seafoam, change fuel filters. If it were me I would start with the seafoam, than filter or filters. Than you may consider checking fuel pressure. Just somewhere to start good luck

Posted on Oct 14, 2009

  • 360 Answers

SOURCE: 2002 Chevy Trailblazer 6 cyl The catalytic

If you've gotten a tank of contaminated fuel, I'd check on the condition of the injectors first.

Posted on Feb 23, 2011

kayzack519
  • 226 Answers

SOURCE: Why does my suzuki 05' use a lot of gas

is it running ok? everyone drives different so i would need more clarification. do you have a heavy foot? Try changing the air filter

Posted on May 23, 2011

  • 21 Answers

SOURCE: 2004 Trailblazer missing & using alot of oil

Get a haynes car book for your car and find out whats wrong by looking up the codes

Posted on Mar 08, 2012

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96 3.8 firebird was misfiring real bad mileage ran rough. Ran out of gas and won't start now. Running out of ideas. Cranks but won't start


I presume you put some gas in the tank after it ran out of gas?
Could be many things. If you want to DIY you need a repair manual. You need to read or have the error codes read by your favorite auto parts store. My wild guess is a bad mass air flow meter. I had one fail, and the symptoms sound similar.

Apr 02, 2015 | Cars & Trucks

1 Answer

05 trailblazer chugs at 48 mph


Hi, what do you mean by chugs at 48 mph ? Doesn't it go any faster then 48 mph, does it lose power, bog down when you press the gas pedal to the floor. Does it have a misfire , that makes the vehicle buck and jerk ! Is the check engine light on or any other lights for that matter ? How many miles are on this trailblazer ?

Nov 06, 2014 | 2005 Chevrolet TrailBlazer

1 Answer

My 05 trailblazer ran out of gas and now runs terrible


Modern vehicles should never be allowed to run out of gas... EVER. The electric fuel pump is cooled by gasoline (believe it or not), and can overheat and fail if the tank is allowed to run dry. Also, the "fuel sock" (which is the fuel pickup strainer in the tank) can become clogged with solids and other debris from the tank. The fuel filter can clog with this debris also.

You'll need to have the fuel system checked.

May 11, 2014 | Cars & Trucks

1 Answer

04 trailblazer ran out of gas now it has misfire and both pcm and ecm codes. i changed plugs an 3 coils buth it didnt fix it.any suggestions


by running out of fuel there is damage done to the little plastic gears in the fuel pump. I would say that the misfires are now the result of insufficient fuel supply and pressure to run the injectors. IT would also account for why there is insufficient power to run the ac compressor

Jan 12, 2014 | Chevrolet TrailBlazer Cars & Trucks

3 Answers

My 2002 Pontiac aztek almost ran out of gas I put gas in then it started making a clicking noise then not wanting to pick up when I stepped on the gas pedal it shakes all I had a diagnostics reading but it...


hi t5here my name is don
did you replace the fuel filter since it almost ran out of gas it is likely that it picked up sludge from the tank
also gm fuel pumps get heir lubrication from the fuel if it ran dry the fuel pump could be the culprit

I would check the fuel filter first
also put about 8 oz of dextron 111 transmission fluid in t5he fuel tank it may free up sticking injectors and fuel pump and it also helps clean the system out

don

Oct 21, 2013 | Pontiac Aztek Cars & Trucks

2 Answers

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

2004 Trailblazer missing & using alot of oil


Get a haynes car book for your car and find out whats wrong by looking up the codes

Mar 08, 2012 | 2004 Chevrolet TrailBlazer

1 Answer

HAD TRAILBLAZER PUT ON COMPUTER. SAID #3 CYLINDER MISFIRE DETECTED.CODE # WAS P0303.I PUT HIGH GRADE GAS IN, CHANGED ALL 6 PLUGS, AND COIL ON #3 CYLINDER. NOTHING WORKED. IT STILL SPUTTERS.CAN YOU HELP ME...


What money?

Who is working on it,a repair shop?

Plugs don't fix a misfire
A bad coil would,if you got the correct one.

There are no computers used for any automotive
diagnostic work what so ever,unless you run scan
tool software on your notebook

Need to continue to look at all data related to
whatever problem you now have,since changing
plugs & coil

No check lights on dash, doesn't mean they aren't
stored in data

You could have worn out O2 Sensors,Bad TPS Sensor,
Vacuum Leaks & Evap Issues,& any number of things

Look at fuel trim,timing,smoke test intake & evap

Aug 23, 2011 | 2002 Chevrolet TrailBlazer

2 Answers

Poor performance, hesitation, sluggish and shaking


Those are cylinder misfire codes. PO300 is random misfires (meaning 1+ cylinders misfired) and the other 2 codes are for cylinder #1 and 2. Did you change the ignition coils yet on 1 and 2?

Do you let the tank go to empty before refueling a lot?

Sep 02, 2009 | 2004 Audi A4

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