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Factory Security sys. causing no start?

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Blazer Forum >> Mechanical & Maintenance >> General Tech Help >> 2nd Gen S-series (1995-2005) Tech >> Factory Security sys. causing no start? Page: [1]
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Factory Security sys. causing no start? - 4/3/2008 4:12:00 PM   
Scooterewski


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My starter in my 99 Trailblazer will not engage unless I disconnect the positive terminal and reconnect it. All my connections are good and clean at the battery. If I shut it off and remove the key and then try and start it again I get nothing, My auto headlights are on and never dim through this process. Could this have something to do with the factory security system?> Also, I am not hearing a relay, or anything for that matter. IIf I let it sit for a few minutes with the security system engaged it tries to start....sometimes....... after I hit the unlock button on the remoteof course

< Message edited by Scooterewski -- 4/3/2008 4:20:13 PM >


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RE: Factory Security sys. causing no start? - 4/3/2008 5:15:28 PM   
fun2b1

 

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does your key have the"chip" in it?? (lil plastic piece with metal "resistor" in the middle???)

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RE: Factory Security sys. causing no start? - 4/3/2008 5:22:28 PM   
swartlkk


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A '99 is the PK3 (no chip).  This is definitely an odd problem...

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RE: Factory Security sys. causing no start? - 4/3/2008 5:29:35 PM   
fun2b1

 

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k well maybe its a gm thing but friend has a 2000 grand am that does the no start thign from time to time.. has to leave the key in the on position for 10 -15 minutes then shut it off then turn it on it should crank over.. there was a major issue with their ignitions there is still some resistance that it reads but I guess its thru the key itself....only way gm deals with it is to replace the ignition... ($300+) but I found somewhere that squirting some graphite powder on the key and a lil in the ignition does the trick.. has worked fine on my friends grand am since... worth a shot anyways


OH and run the key in and out around 100 times....(no exaggeration) you'll feel the difference in how smooth it is... 

< Message edited by fun2b1 -- 4/3/2008 5:36:57 PM >


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RE: Factory Security sys. causing no start? - 4/3/2008 5:33:40 PM   
swartlkk


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This quite possibly could be the beginning of an ignition switch failure.  The ignition switch does not cost $300... 

RockAuto.com:
ACDELCO Part # D1413D {#26075994}
SWITCH,IGN & START w/o RIGHT HAND DRIVE(RHD)  $52.79

There is a how-to in the DIY section (IIRC) on replacement.

< Message edited by swartlkk -- 4/3/2008 5:40:06 PM >


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RE: Factory Security sys. causing no start? - 4/3/2008 5:45:00 PM   
fun2b1

 

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quote:

ORIGINAL: fun2b1

only way gm deals with it is to replace the ignition... ($300+)


I never said how much the switch was.. but hey all the power to ya...lol btw graphite powder is MAYBE $3-$5

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RE: Factory Security sys. causing no start? - 4/3/2008 5:49:12 PM   
swartlkk


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The powder will lubricate the lock cylinder, but I don't know what good it would do on the ignition switch.  Worth a try.


< Message edited by swartlkk -- 4/3/2008 5:59:12 PM >


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RE: Factory Security sys. causing no start? - 4/3/2008 5:55:48 PM   
Scooterewski


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Well, I just got back from the store and it seemed to work fine if I gave it about 5 minutes or so from the time I shut it off to the time I started it back up but if I shut it off and try to turn it back on I get nothing.....very odd.... I just don't want it to leave me stranded...A tow isn't as cheap as it once was...LOL (besides, a chevy has no place on a tow truck) Thanks for the help so far...still wondering if anyone else has had this problem

< Message edited by Scooterewski -- 4/3/2008 6:04:13 PM >


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RE: Factory Security sys. causing no start? - 4/3/2008 5:59:41 PM   
fun2b1

 

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it has somethign to do with the contacts inside of the cylinder... I dont know if its a pontiac issue or a gm issue.. but grand ams seem to suffer more.. and hey the graphite worked on a friends grand am havent had any issues in over a year....read this post http://www.automotivehelper.com/topic121184.htm most of the posts after this kid shoudl apply   JustJosh01-07-2004, 12:44 PMI was having problems with the passlock as many others have been having as well. I took the ignition cylinder out and took it apart. To remove the ignition cylinder you have to press in on a pin that is on the back of the ignition cylinder with the key in and turn it and pull and it will pull out. To take the cylinder apart you all you have to do is line up the end with the groove on the inside of the cylinder, the part the key is in, with the channel on the outside of the cylinder and depress the part with a paperclip and slide it apart. There are a few small pieces and springs so be careful!! Now you just have to clean the contacts and reassemble it. That little cleaning saved my at least $300. I hope that this helps some with their problem!!!!!!!!!!!!

You may even try just cleaning it with carb cleaner and turning it without taking it apart and then blowing it out with air. I had not thought about that but looking back I think it shouldwork as well. TO lubricate it use graphite powder and your hopefully up and running    does the security light come on??? blink stay on?? have you tried leaving the key on for 10-15 min the shutting it off and turning it back on????

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RE: Factory Security sys. causing no start? - 4/3/2008 6:06:15 PM   
Scooterewski


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The security light blinks until I have the key in the on position(I usually let the fuel pump finish before I start)then it shuts off. If I let it sit without the key in it for 10 minutes it'll start right up.

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RE: Factory Security sys. causing no start? - 4/3/2008 6:15:16 PM   
fun2b1

 

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i'd almost bet money its the ignition.. first try the graphite.. if it doesnt work then you'll be lookin at a new ignition cylinder... good luck and please post once you have a solution.... I've seen way too many posts that are left with sugestions to fix the problems but barely any that said whether or not they resolved the issue and what their solution was... well again good luck:-)

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RE: Factory Security sys. causing no start? - 4/3/2008 6:22:12 PM   
Scooterewski


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I haven't checked any connections at the starter itself...do you think a bad connection there could be a possibility?

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RE: Factory Security sys. causing no start? - 4/3/2008 6:25:07 PM   
swartlkk


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Poor connection at the starter would not cause the security light to illuminate.

And just to clarify, the key cylinder is VERY rarely the problem.  Much more common on these trucks is the ignition switch (PN I listed above).


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RE: Factory Security sys. causing no start? - 4/4/2008 2:45:56 PM   
Scooterewski


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So the security light should turn off after I disarm? What it does is it turns off, then I open the door and it flashes, I stick the key in and turn it to prime the fuel pump or whatever and all of the dash lights come on as in most cars.-------It happened again today, I drove roughly 35 miles back from work, pulled into the bank to cash my check and came back to start it and, what do ya know?-Nothing-Tried inserting the key and leaving it on for no less than 15 minutes to reset,didn't work. I unplugged the battery for 10 minutes, didn't work. climbed underneath at the starter and it was scalding hot...tapped on the starter with my helper holding the key in and still nothing. So I pulled the relay and plugged it back in and it started.
      My questions are:
1. Is there supposed to be a heat shield between the starter and the exhaust?
2. Could it be that the starter is getting too hot and by coincidence it just so happened to cool off enough at the same time I pulled the relay out?  AAAAARRRRGGGHHHH!!!!! LOL Thanx for any help on this!

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RE: Factory Security sys. causing no start? - 4/4/2008 3:22:54 PM   
swartlkk


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What relay did you pull?  It doesn't make sense that disconnecting the battery didn't work, but pulling a relay did.  Seems more like coincidence.

I would think that even a hot starter should make some attempt...


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RE: Factory Security sys. causing no start? - 4/4/2008 5:51:44 PM   
Scooterewski


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Well, I know now that you are correct.She's dead in the garage I'm gonna pull the starter and either take it to autozone, or jump 12 v direct to see if it'll run. This blazer came from ohio so the salt on the roads kinda rusted the under carriage a little(not horrible though). but the starter looks a little weathered. I've made multiple attempts to start her tonight, just adding to my frustration. I have one last question though, is there a specific sequence I should go through when disconnecting the battery with this anti-theft system? I only ask because I installed an amplifier last weekend and had to remove the terminal. And should I do anything special when restoring power? THANX ALOT! Oh! it was the relay marked STARTER under the hood....It was coincidence though.

PS That chevelle looks like an awesome project! Can't wait to see the final product

< Message edited by Scooterewski -- 4/4/2008 6:00:44 PM >


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RE: Factory Security sys. causing no start? - 4/5/2008 7:21:32 AM   
fun2b1

 

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Ive got a stupid question..but did you test the relay .. I mean it never hurts to replace parts with new ones...(well almost never).. tho hey if its that shoddy lookin then I'd replace it too..

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RE: Factory Security sys. causing no start? - 4/5/2008 8:27:15 AM   
Scooterewski


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yeah, the starter looks like crap, the relay looks good though....Also, I have found alot of ppl have had problems like this and it was the ignition switch, Just the way it's acting leads me to believe it's not. Like when it actually decides to turn over, it doesn't want to start, It takes like 6 or 7 seconds for it to fire up. When the problem goes away, it starts like a champ

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RE: Factory Security sys. causing no start? - 4/5/2008 2:05:54 PM   
Scooterewski


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OK, here's the low down. After alot of testing and probing, I've located the problem. The neutral saftey switch is faulty.I started at the starter relay. I jumped the relay to see if I could get the starter to engage...Boom! Starter good! So now I know that the problem is between the ignition switch and the relay.Sot then I took the cover off of the steering column and whipped out the faithful test light to see what I could find there. I found that I had the power to the ignition switch itself and then I found the actuator wire and had power there when in the START position...So that leads me to believe that the neutral saftey switch is faulty. I believe the actuator runs from the ignition switch then to the neutral saftey switch and then to the relay, without the neutral saftey switch working, power is not getting to the relay(Someone feel free to correct me if I'm wrong here). So what I did, being that the neutral saftey switch wasn't in stock anywhere, was ran a wire from the actuator wire in the steering column to the starter relay and there it is! Starts like a champ! Completely by-passed the neutral/saftey switch. Hope this helps anyone having a similar problem. The actuator wire was  yellow wire but if you have the redundant steering wheel controls there are 2 yellows, the larger of which is carrying like I wanna say, 4 wires inside of it, that's not the one. I believe that is the radio controls(Not sure though).

< Message edited by Scooterewski -- 4/5/2008 2:13:19 PM >


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