Question about 2005 Chevrolet Cobalt

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Car wont start. acts like it wants to turn over but wont. changed the starter and cylinorde. could it be the chevy cobalt ecm

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  • Chevrolet Master
  • 2,101 Answers

Does it have gas? do you have spark to the spark plugs. are there any codes

Posted on Nov 04, 2012

  • kimberly Nov 11, 2012

    it is getting gas and spark. he have changed the crank censor and this did not help either. It has two codes that come up one is P0449 and the other was a po443.

  • teds repairs
    teds repairs Nov 11, 2012

    those codes are for the emissions and nothing to do with it not starting. have you checked the ignition control module .and how manuy miles does it have on it, with it not starting and no codes I am thinking ingition control module. this the link to my garage and easier emailing there https://www.facebook.com/TedsRepairs

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6ya6ya
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Posted on Jan 02, 2017

SOURCE: 95 chevy tahoe wont start

i checked the battery and its doing the same thing making a clicking noise

Posted on Oct 07, 2008

  • 2 Answers

SOURCE: 1997 Chevy Cavalier intermittent starting

I had the exact same problem on my 1998 Chevrolet 1500 c/k pickup. I also tried a new starter motor and solenoid assembly, but to no avail.

After weeks of searching for the problem, I found that corrosion had built up between the car battery terminals and the power cables extended from the car battery to the starter motor. I'm not sure if this is your problem, but it's worth a try. Also, check all other electrical connections, because these types of intermittent problems are often electrical.

Posted on Oct 19, 2008

seans46
  • 161 Answers

SOURCE: I have a 2006 chevy cobalt and the lock lite is on

you will need to do a security relearn.
1.turn key to on position and leave on
2.after 10 minutes the light will flash and go out turn the key on to off 3x then leave on again.
3. do this 3 times for 30 minutes then after 30 minutes your 3rd time and after turning the key 3 times the 4th time start the car. it should start right up.

Posted on Jun 10, 2009

SOURCE: how do i change the car battery for 2006 cobalt?

the battery is located in the trunk under the carpet where the spare tire is located, loosen the 10 mm nuts on the terminals and pull them off, gently pull the vent hose from the battery, loosen the bolt for the battery hold down, usually a 13mm or 15mm, remove battery and reverse the process to install

Posted on Jun 19, 2009

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2 Answers

What would cause a 2001 chevy blazer to not start? we replaced sterring column and it acts like its not getting gas turns over to start but wont start what could be the problem? would the the brain ne


The ECM does not recognize the different key. A tool referred to as a Tech-2 plugs in to the scan port, the truck is put in learn mode and the prompts on the tool are followed, this "programs" the ECM recognize the new key.

Dec 02, 2014 | 2001 Chevrolet Blazer

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On my 09 cobalt im not getting any primary fuel pump activity and when i turn the key to start starter does not enguage all relays clicking inside and under hood normaly


hook up a to the obd and comand the ecm to prime the fuel pump if it doesnt prime its the ecm providing wires and relays are good

Jun 11, 2014 | 2009 Chevrolet Cobalt

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Wont turn over wont boost ap hand goes to 0


With limited info I would say starter is at fault. That would would account for no boost from outside source and when turn key the volt meter goes to zero.

Apr 18, 2014 | 2004 Chevrolet TrailBlazer

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08 Chevy Cobalt wont start. Battery is good.?


Is there a warning light , padlock an car symbol lit when it won't start ? I assume it has to be a bad starter? Every time i jump the car it starts up fine.??? It wouldn't be a starter then ! Have the charging system check out . Have a voltage drop test on the starter circuit done . Test from the starter relay . check out videos on youtube , but don't assume anything . Test , Test Test .

https://www.youtube.com/watch?v=WMXENKujYtc&t=6s

Starter Voltage Drop

VEHICLE RELAYS Testing from the relay base

Plus you need to know how the starter system works for the vehicle your trying to diagnose . I 'am a GM tech , Chevy , Cadillac , buick , GMC. Have access to GM factory repair info. Been to a lot of GM training school's . The computers on this vehicle have a lot to do with the starting of the vehicle ,PCM - engine computer , the ignition switch is a low voltage input to the BCM - body control module , which will send a message over the GMLAN serial data communication network to the PCM to energize the starter relay or crank relay .The PCM also has to see a voltage input coming from the transmission range selector switch , showing it's in park or neutral , has to have correct fuel enable password from the theft module etc...
Also it take's is a little corrosion , lose connetion , lower then normal circuit voltage for problem to happen .
Factory service repair manual discription

Moving the ignition switch to the start position signals the body control module (BCM) through discrete inputs from the ignition transducer that engine crank has been requested. The BCM verifies that theft is not active and sends a serial data message to the engine control module (ECM) requesting engine start. The ECM receives a ground signal from the park/neutral position (PNP) switch or a signal from the clutch pedal position sensor notifying that it is safe to start the engine. Ground G105 supplies ground for the CRNK relay coil. The starter relay coil control circuit is then supplied voltage by the ECM closing the switch in the starter relay suppling 12 volts from the CRNK fuse to terminal A of the starter. Ground is supplied to the starter solenoid through the engine block.

The first step in diagnosing a problem like this , hooking up factory scan tool , checking for DTC'S - diagnostic trouble code's , checking inputs to control modules that are in charge of starting the vehicle .

Testing an knowledge is the way to a fix , an testing cost $$$$$


Mar 19, 2017 | 2008 Chevrolet Cobalt

1 Answer

08 Chevy Cobalt wont start. Battery is good.?


Generally speaking, if the starter was dead it would not jump start.
Sounds like the key switch or the neutral safety switch.
You would need to know if the starter has power when the key is in the start position.

Feb 15, 2014 | Cars & Trucks

1 Answer

No crank signal


Change the ECM too if they can exchange. Your car controlled by ECM so see this work.

Dec 19, 2013 | 2006 Saturn Vue

1 Answer

My 2006 cobalt wont start


There can be a couple things, nutral saftey switch, AC DELCO, NEUTRAL SAFETY SWITCH Direct Replacement Part For OE Number 24219476 `$68.67 , ignition switch not adjusted correctly, try jumping the starter at the starter to see if the starter is working, of course I have just fixed a car that the guy didn't have the shifter in park, try these things and get back to me

Oct 18, 2011 | 2006 Chevrolet Cobalt

1 Answer

My car wont start and it is making a clicking noise someone said it might be the starter. Where is the starter located? It is a 2005 Chevy Cobalt


On the Cobalt's the starter should be on the rear of the motor attached to the transmission housing.But before you change the starter you might want to have the battery checked to make sure that you have enough starting power from your battery.This can be tested at any auto parts stores for free.

May 10, 2011 | Chevrolet Cobalt Cars & Trucks

2 Answers

Why wont the key come out of the ignition? 2006 Chevy Cobalt. Key stuck in ignition and car will not start.


My cobalt turns over but doesnt start up and i dont know whats wrong with it to get it fixed.

May 27, 2010 | 2006 Chevrolet Cobalt

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