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2002 chevy trailblazer_ltz
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75 Posts
Discussion Starter #1
I need some help here ASAP...

The engine won't start, doesn't even respond to being jumped. Bought a new battery, now the radio, lights window etc. all work fine, but the engine doesn't even make an effort to turn over. I checked all the fuses and didn't see that looked blown...

Is this an ignition switch problem? Or something else?
 

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2004 gmc envoy_slt_xl
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1,356 Posts
you said the engine does not turn over .. as in it wont start or it wont crank?

IF it cranksbut wont start, that narrows it down.

IF it wont crank, does the lights dim when you try to crank it and do you hear a "click" under the hood at the same time? If you answered yes to either of these, based on year of your truck I would say the starter is frozen / stuck ..

I might be wrong as there are too many things about these trucks I am still learning ..
 

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2002 chevy trailblazer_ltz
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75 Posts
Discussion Starter #4
you said the engine does not turn over .. as in it wont start or it wont crank?

IF it cranksbut wont start, that narrows it down.

IF it wont crank, does the lights dim when you try to crank it and do you hear a "click" under the hood at the same time? If you answered yes to either of these, based on year of your truck I would say the starter is frozen / stuck ..

I might be wrong as there are too many things about these trucks I am still learning ..
The engine doesn't do anything, I don't even hear a click, i'll check if the lights dim...
 

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2002 chevy trailblazer_lt
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4,839 Posts

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2004 gmc envoy_slt_xl
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1,356 Posts
It might be your starter....I had the same problem a couple of months ago. I was able to narrow it down to the starter because I was detecting power was getting to the starter via the purple wire and I was able to bridge the circuit with a screw driver to get the solenoid working. Hope it makes sense and helps.

[URL=http://s46.photobucket.com/albums/f113/dshivez/?action=view&current=MOV-0018.flv]
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thats what i was thinking .. but could also be the ignition switch ..
 

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2006 chevy trailblazer_ls
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1,674 Posts

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2003 chevy trailblazer_ls
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426 Posts
I actually had a similar problem happen to me just an hour ago.
i got out of work and tried starting my car and it would crank then stop for a second then crank back up then stop.

I tried that three times until i finally got it to start?

since i had driven it for awhile it starts up normal now but why would it do that?

i had a new Die Hard battery put in about a year ago.
 

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2006 chevy trailblazer_ls
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1,674 Posts
I actually had a similar problem happen to me just an hour ago.
i got out of work and tried starting my car and it would crank then stop for a second then crank back up then stop.

I tried that three times until i finally got it to start?

since i had driven it for awhile it starts up normal now but why would it do that?

i had a new Die Hard battery put in about a year ago.
Didi it crank or just do nothing?
 

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2003 chevy trailblazer_ls
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426 Posts
yeah it would crank then not crank for a second then start crankin again then stop for a second.

but it seems to be working fine lately havent had any problems starting it up since it happend yesterday.
 

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2002 non_gmt360 other
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1,069 Posts
Does the security light blink when you try to start it? If so then it needs a security relearn done on it. A common issue when the battery goes completely dead. I will try to do a search for you to find the process. It was on here just a few days ago.

Here is the process:

http://forums.trailvoy.com/showthread.php?t=49294&highlight=security

It will still crank if you need a security learn done. I just went through it when I changed PCM recently.


I have however ran into a situation where I would turn the key to start the truck ( before changing PCM and after too) where I can usually turn the key just enough to say it is in the start position ( not all the way on) and the truck usually cranks. BUT I use my remote starter all the time and I was then able to turn my key on all the way and usually have to hold the key for a second or less and then it finally starts. I have been using my key more often now and it seems to start normally.
 

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2003 gmc envoy_slt_xl
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170 Posts
I put my money on Ignition Switch ... welcome to the world of Gm gremlins-
They should know better - real crummy design. When electronics start to go wonky look at the ignition first.

It will migrate all over hells half acre throwing codes in the transmission , killing your dash . locking your key .. on and on...

leave it sit over night - work like nothing has happened and then bang your all over the map again.

http://forums.trailvoy.com/showthread.php?t=45028


http://forums.trailvoy.com/articles.php?do=viewarticle&artid=91

While your at it clean the throttle body - unbelievable improvement in engine ... lol

Happy 2009 :crazy:
 

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2005 chevy trailblazer_lt_ext
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49 Posts
My wife's trailblazer occasionally will not turn over. I've found that the problem is a corroded signal wire to the starter. I think being close to the exhaust manifold (V8) and exposed to road debris has caused this. There is a small gap between the splash guard and the frame in the passenger side wheel well. When it doesn't start I can reach in there and simply wiggle the wire around and it will fire right up when I retry. I have checked the connections on the starter and they are tight. I haven't done anything to fix this problem because the starter looks like a real pain to get to on this vehicle.
 

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2003 chevy trailblazer_ltz
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8 Posts
cranks but wont start

I have an 03 trilblazer that last thursday just stopped starting, the engine turns over fine, i can hear the fuel pump and all gauges work.It just wont fire
The fuel is low just over the empty line but I have yet to have this problem before.
sometimes it stumbles like its about to fire but doesnt as well
 

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2003 gmc envoy_slt_xl
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170 Posts
Hey Haulin - when it has been as cold as you guys have had it lately I try and keep my tank full - for some reason you get more condensation in the tank that makes it's way into the lines... pain in the butt when they freeze...:tiphat
 

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2002 non_gmt360 other
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1,069 Posts
I usually like to try and keep a full tank during the winter to try and avoid condensation in the tank. All the water will sit at the bottom and the pickup is in the bottom of the tank. I found out when I had my 83 Pickup that trucks don't run on water, lol.
 
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