Question about 2003 Chevrolet Trailblazer Ext

Open Question

03 trailblazer wont stay running after the battery was replaced

Battery became to weak and needed to replace. after getting a used battery it was smoking and started to ride very ruff and now it will start but it will not stay running.

Posted by Anonymous on

6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 2 Answers

SOURCE: 2003 Trailblazer wont start

when you go to start it does it still say driver 1 on the dispaly... or unknown driver.. if it says unknown driver it wont do anything

Posted on Nov 14, 2008

  • 275 Answers


it is a communication error with the ecm from the ignition switch here is the code description

GM Number U1000

Type Network - Manufacturer Controlled DTC - Manufacturer Controlled

Description Class 2 Communication Malfunction Conditions
DTC B1327, U1300, U1301 and U1305 not current (any particular device on the Class 2 serial data circuit will support some subset of these codes), the ignition switch position requires serial data communication to occur, then at least one operating parameter has not been associated with an identification number within 5 seconds after beginning serial data communication (a default value is used)

Posted on Nov 14, 2008

  • 3 Answers

SOURCE: My 1993 Chevy Caprice Wont Start

there are large fuses in the relay box it could be one of these located in the engine compartment

Posted on Mar 18, 2009

  • 306 Answers

SOURCE: S10 won't start after it rains. Replaced fuel

Dump the gas in the fuel tank

Posted on May 07, 2009

  • 56 Answers

SOURCE: car wont start. turns over but wont stay running

your cars antitheft system is trying to prevent the car from being stolen so it is shutting it offf after it starts. go back over step by step you installation instructions make sure the ring around the ignition that comes with the remote starter is taped into the exact loacation it needs to be, or the cars own anti theft system will not notice it and will try to shut car off. its an anti theft feature. if this doesn't wotk you will not be able to use this remote starter. i ran into the same problem finally got it to work poperly.

Posted on Jan 24, 2010

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Reset computer after battery change 03 trailblazer

Computer will reset after driving it around for a 15 min or so. Make sure your throttle body is clean, otherwise won't run correctly and possibly stall if your AC/Defroster is on. Cleaning it will solve this.

Feb 19, 2015 | 2003 Chevrolet TrailBlazer

1 Answer

Need to reset the PCM on my 2003 Chevy Trailblazer .How do i do it?

Disconnect the NEGATIVE battery cable from the battery... Hold it or position to the POSITIVE battery cable for about 5 minutes. Also make sure you leave the key in the ON position (Do not have the engine running) and this will clear the memory on all computers/modules in the truck.

Jul 04, 2014 | 2003 Chevrolet TrailBlazer

1 Answer

2004 Trailblazer - replaced blown speakers in back, now it won't start. Need to replace 2 more speakers - how can I do that without this happening again? Had to jump to get it started. How can...

This is just a guess but has happened to me before. The battery may be on the weak side and guessing you may have had the doors open for some time as well as the radio going for a while as well which could have pulled the battery down.

Jul 04, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

03 trailblazer 4.2 l code p0172 has no power

P0172 02 sensor is detecting that the system is running too rich. An 02 sensor that is starting to go out will pull this code, but the following will cause the 02 sensor to throw this code as well:

A few things to look at. 1st thing I'd do is clean your throttle body with the battery disconnected. Use sensor safe throttle body cleaner, about $4.

From there, I'd look at your upstream 02 sensor, located on the exhaust manifold on passenger side of engine, very easy. Try and stay away from Bosch if possible.

New fuel filter, clean or replace your MAF sensor located on top of engine next to firewall. Also, probably time to change your spark plugs. I recommend A/C Delco 41-103, will idle better than other brands.

Jun 20, 2011 | 2003 Chevrolet TrailBlazer

1 Answer

Having promblems with my instrument cluster, the speedodmeter is stuck on 50 mph and the oil gauge wont go back to 0. its a 2003 chevy trailblazer with a 4.2 liter and air bag light stays on


This is a very common problem with 03-06 Trailblazer instrument clusters and it is repairable without having to replace the entire cluster.

Check this page for more on the issue and how to get it repaired - Trailblazer Cluster Repair


Dec 16, 2010 | 2004 Chevrolet TrailBlazer

3 Answers

My battery dies overnight on my 03 trailblazer, i can jumpstart it and runs fine and i shut it off and start back up and it runs, but when i leave it off overnight the battery dies down again.

Check all your connections at battery to make sure they are tight, and clean, but my guess is it will probably need to be replaced, unless you have a large current draw happening. Stop in to an Autoparts supplier, or your preferred repair shop and ask them to test your system, as in battery , and ask them to double check that there isn't a large draw when engine is shut off. Sounds like alternator is o.k. as it is charging battery, but battery isn't holding charge, and a quick test by knowledgeable technician will confirm whether it's battery, or something drawing it down. If you happen to have another good battery you can try for a day or 2, that will also tell you.

Dec 21, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

P.T. cruiser hatch all of a sudden wont stay up 20min.latter.

its usually a sign that the rear hatch supports are getting weak and need to be replaced,some times the cold weather will affect them also

Sep 05, 2009 | 2002 Chevrolet Trailblazer Ext

1 Answer

Low battery light in 03 ford f150

charge it up .crank engine while its idling get a volt meter hook it to battery .volts should be 13.5 to 14.5 if its 12 to 10 or lower.alternator is not charging.if alternator is charging . turn engine off battery should stay 12.5 volts if it drops after engine is off to 11.0 or 10 volts battery weak replace it.

May 04, 2009 | 2003 Ford Expedition

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

41 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts


Level 3 Expert

75807 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22133 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8172 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides