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Chevy Blazer security light blinking and car won't start

7 messages,  Last post on Sep 14, 2008 at 12:55 PM

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What is this discussion about? Chevrolet Blazer, SUV


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#1 of 7
2001 chevy blazer security light blinking car won;t start by stevemass5
May 19, 2008 (7:42 pm)
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anyone have any idea how to reset the seurity system, turn key don;t do nothing
#2 of 7
Re: 2001 chevy blazer security light blinking car won;t start [stevemass5] by sugar3941
Sep 04, 2008 (2:10 pm)
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Replying to: stevemass5 (May 19, 2008 7:42 pm)

did you ever find out what caused the security light to blink. mine is coming on while i'm driving.
#3 of 7
Re: 2001 chevy blazer security light blinking car won;t start [stevemass5] by stupidcar1
Sep 06, 2008 (10:36 am)
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Replying to: stevemass5 (May 19, 2008 7:42 pm)

Mine is being stupid also. The light comes on while Im driving and it also wont start and the light blinks. From what I have been told if you wait 10 minutes it will start. After the 10 minutes if you turn the key on but dont try to start it and the serurity light flashes dont try to start it. If it is on solid then it will start. Im trying to figure out what we need to do to fix it. I was told we had to replace the whole ignition part of the colum cause the key isnt in sync with the passlock system.... Anyone know??
#4 of 7
Re: 2001 chevy blazer security light blinking car won;t start [stupidcar1] by sugar3941
Sep 08, 2008 (9:22 am)
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Replying to: stupidcar1 (Sep 06, 2008 10:36 am)

i talked to a friend of mine who is going to be working an my blazers problem. he said that as long as the security light doesn't start blinking the vehicle will be fine. But if the light starts to blink then it is going to shut the vehicle off. there are only 2 options to fix the problem either try and get a new key (if the one you have is worn) if that does not work then yes the ignition needs to be replaced. And Yes it costs a pretty penny to get it fixed.
#5 of 7
Re: 2001 chevy blazer security light blinking car won;t start [stevemass5] by kmb6013
Sep 11, 2008 (2:48 pm)
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Replying to: stevemass5 (May 19, 2008 7:42 pm)

CHEAP FIX!!! I had the same problem 2 years ago with my 2000 Blazer. I went through hell trying to figure out the problem with many mechanics. If the security light is blinking you have to wait 10-15 minutes for the system to recycle. When the light stops blinking it will start. Here's the issue...the GM security feature is defective and there is no way to turn it off. Don't bother wasting your money on a new ignition because it does nothing (I know because I replaced mine). I got a hunch that if I put in a remote starter I could then bypass GM's security feature and it would be fine. IT WORKED! I put in the remote starter and have not had any issues with starting for over 2 years now. ON THE OTHER HAND!!!!! my 4X4 is faulty. The 4X4 lights on the dash blink or go out and the truck runs like crap. It will be fine for a little while but then the light starts going on and off and the truck runs crappy again. This problem I can't figure out...any ideas?
#6 of 7
Mine will run bad also by stupidcar1
Sep 13, 2008 (9:45 am)
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I reget ever buying this stupid thing!!! Mine will run bad when I stop at alot of places shopping when it is hot out side. When I come up the mountain it feels like it is vapor locking. If I have to stop it dies. With the security problem it scares me that Im going to be stuck in the middle of the road and it wont start for 10 freakin minutes. I bought this car for my daughter to drive. We have about 3 months to get it fixed or she'll end up driving my truck, cant have THAT!! So we will try the remote start and go from there!!!
THANKS!!!
If you have any ideas on the vapor loack thing let me know!!!
#7 of 7
Re: Mine will run bad also [stupidcar1] by jlflemmons
Sep 14, 2008 (12:55 pm)
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Replying to: stupidcar1 (Sep 13, 2008 9:45 am)

Okay, this is a fuel injected vehicle and cannot vapor lock. Not saying there isn't a problem, just that it cannot be vapor lock.
 
Several things can cause the problem you are having, including the MAp sensor, crankshaft position sensor, any number of things. The system will only set a code if the problem is a hard failure, or repeats itself. Regarding temperature, if the temps are higher outside, the temps are higher around all those sensors used in the engine control system. Also of note is that the engine and engine compartment gets even hotter when you turn it off. There is no air or coolant flowing, and that chunk of iron just gets hotter before it starts cooling back down. Has a GM dealer checked the vehicle? Not all independents are qualified for the sophistication of an OBDII system and will just keep swapping parts until they stumble across the problem.
 
Put a little logic into the problem and observe closely for any other events at the time of failure, or symptoms that may seem unrelated. Just remember that the 4.3L engine and control system is in 100's of thousand of vehicles on the road and has a very good history.

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