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Random Starting Issues

 
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staran68
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PostPosted: Wed Jun 20, 2012 7:23 pm    Post subject:  Random Starting Issues Reply with quote

not sure which category to post this in..

I'm hoping to narrow down what might be happening when i try to start my car sometimes. I have 3 different things happening, sometimes all together, sometimes none at all, and sometimes just 2 of the 3. No consistency to any of them, really..

First, i often have trouble turning the key. Jiggling it around for a while, it eventually turns so i can try and start it.

Second, the car occasionally doesn't start, and i get the flashing security light, and i have to wait the 10 minutes and try again.

Third, sometimes when the car starts, all the gauges and the radio are off. My turn signals work (and flash on the cluster), but i cant turn on/off traction control, view speed/rpm, etc.

From all the reading ive done, im looking at the passlock sensor and an ignition switch. just hoping for a second opinion, so i don't spend money i don't need to. already replacing a ton of stuff that's decided to go wrong this summer as it is..

thanks
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staran68
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PostPosted: Thu Jun 21, 2012 6:46 pm    Post subject:   Reply with quote

no one have any insight to any of these issues? im mostly curious about the third one, where the car starts but the gauges and radio dont work.
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02impalals
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PostPosted: Sat Jun 23, 2012 9:40 pm    Post subject:   Reply with quote

If you have to wiggle your key in the ugn switch I would say replace both. I have a new ign switch keyed to use my keys and am having the same issue of the car not starting. I got a new switch with a fresh key and no more issues. The switch sends resistance to the passlock and if any variance it shuts the car down.

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sumdude
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PostPosted: Sun Jun 24, 2012 1:09 am    Post subject:   Reply with quote

The first two seems like a pass-lock issue and tumbler issue.
The third one seems like BCM issue.

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staran68
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PostPosted: Sun Jun 24, 2012 10:46 am    Post subject:   Reply with quote

If i replace the passlock sensor and ingition switch, are there any other parts i'd need to do the work? or is it as easy as unplugging the old parts and putting in the new? (after taking apart the whole dash, of course).
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Lingenfelter
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PostPosted: Sun Jun 24, 2012 10:55 am    Post subject:   Reply with quote

My old man had a no-start, wait 10 minutes problem with his 02. He also had the key-on, most of the dash nonfunctioning issue.

He ended up replacing the ignition cylinder and the BCM. Ran him about 700, I think.

Can't give you any info about the installation or tools required, my old man had everything done at the dealer.

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staran68
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PostPosted: Sun Jun 24, 2012 10:08 pm    Post subject:   Reply with quote

$700's not a number i like seeing, but good info either way. Guess i deal with it a bit longer while i save up for that one
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Lingenfelter
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PostPosted: Mon Jun 25, 2012 11:59 am    Post subject:   Reply with quote

staran68 wrote:
$700's not a number i like seeing, but good info either way. Guess i deal with it a bit longer while i save up for that one


We get screwed a bit up here in Canada, especially for parts. I'd suggest you get a quote from a dealer and see where you stand wth pricing locally.

Also, if you have a spare key that you rarely use, maybe try using it. Sometimes worn keys cause funny little issues. If the backup key works, make another copy for a new backup key. I doubt this will solve you problem but it may help a bit.

Good luck!

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staran68
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PostPosted: Mon Jun 25, 2012 6:15 pm    Post subject:   Reply with quote

Lingenfelter wrote:
staran68 wrote:
$700's not a number i like seeing, but good info either way. Guess i deal with it a bit longer while i save up for that one


We get screwed a bit up here in Canada, especially for parts. I'd suggest you get a quote from a dealer and see where you stand wth pricing locally.

Also, if you have a spare key that you rarely use, maybe try using it. Sometimes worn keys cause funny little issues. If the backup key works, make another copy for a new backup key. I doubt this will solve you problem but it may help a bit.

Good luck!


The spare key thing did work for me for a while. I bought the car new in 2001, and used just 1 key for the first 9 years. a few years ago, this passlock issue started acting up and swapping my worn key for my other one solved it for a while. wish i had thought of making another spare back then, though
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fastrunner08
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PostPosted: Tue Jun 26, 2012 12:30 pm    Post subject:   Reply with quote

recommendation, is to pick up a used ignition switch and try it first, either at a junk yard, or off ebay. Morad's parts company usually gives a good deal on them. Try that if it doesn't work. Talk to a dealer and see what they would charge you to program a bcm, and if they would just program one if you bought it yourself. Usally if they will do that it will be about $80. IF not they will charge you 400 something for both the bcm and the programming of it. If they will just program it, buy a bcm from rock auto as it will be much cheaper, take it in and get it programmed.

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Lingenfelter
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PostPosted: Tue Jun 26, 2012 12:51 pm    Post subject:   Reply with quote

staran68 wrote:
Wish i had thought of making another spare back then, though


The dealer can cut a new key for you based on your VIN.

That said, I don't know what they charge locally. I think I paid $70 for a new key, programmed, from the dealer (for my 2003 Grand Am). Some people say that you don't need a programmed key for the Impalas. I think it is based on whether there is a 'plus sign' in the metal of the key near the hilt/wide end.

Again, not sure if it's worth your trouble to go have a key cut then turn around and have to replace the ignition cylinder anyway.

You could try cleaning the ignition, but I've never done it and don't know how. I don't remember there ever being a how-to on the forum about it.

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70_Malibu
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PostPosted: Thu Jun 28, 2012 7:44 pm    Post subject:   Reply with quote

Try this out before you blow bucks on a new ignition cylinder to solve a PASSLOCK issue:

http://www.naioa.com/v2/module.....mp;t=44480


But being able to start it with no dash lights and no traction control doesn't sound like it's just that.

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staran68
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PostPosted: Sat Jun 30, 2012 12:29 pm    Post subject:   Reply with quote

its really starting to sound like all 3 things are failing at once.. maybe after i fix the fuel pump on the yukon now, i'll save up again for this project..
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