Olds Alero crank no start

Tiny
BOB KULL
  • MEMBER
  • 2000 OLDSMOBILE ALERO
  • 3.4L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 130,000 MILES
I have a 2000 alero and all of a sudden one day the car would crank but not start, I noticed the security light would stay on for a very long time before it went out, not flashing, so I decided to try the spare keys, I got to the 3rd key and it did not work and then I turned it upside down and the car started, so I am thinking the tumbler and ignition switch. The car was fine for a couple of weeks, but I thought I should change them before it does it again, so I started with the switch, I Changed the switch, tried starting, and the car was starting fine put it back together came out in the morning and when I open the door it was beeping like the key was in the ignition and again no start, so I go to advanced get a new tumbler with key did the relearning process after 10 minutes the security light goes out turn the key off, and still no start. I checked all the fuses removed the battery cable to reset the computer I can hear the fuel pump running, tried some ether and the car starts on ether and shuts off so it is not getting gas, I just need some ideas on where to go next, no trouble codes no security light and no start
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Monday, September 5th, 2016 AT 7:47 AM

17 Replies

Tiny
SATURNTECH9
  • EXPERT
Did you just scan it with a diyer scan tool?They won't read the body control module codes which is what controls the security pass lock functions.
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Monday, September 5th, 2016 AT 8:02 AM
Tiny
BOB KULL
  • MEMBER
I scanned it with the Torque Pro app
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Monday, September 5th, 2016 AT 8:13 AM
Tiny
SATURNTECH9
  • EXPERT
Can you check andnsee if it reads body control module?I really doubt it does but wouldn't hurt to look.
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Monday, September 5th, 2016 AT 8:46 AM
Tiny
BOB KULL
  • MEMBER
It doesn't I checked after your original post, but you would think I would have some crazy stuff going on if the BCM was bad, the only thing I noticed when trying to start the car and I let go of the key all the dash lights come on then go out never recognized if it did that before. After searching I found aleros start to leak and water gets to the bcm and the fuse box I might look at that next
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Monday, September 5th, 2016 AT 9:00 AM
Tiny
SATURNTECH9
  • EXPERT
If a bcm goes bad it never tells on itself with codes you just see strange things happen no starts no communication with bcm at times etc. What I was looking for were codes in the bcm that might lead us to the security light being on.
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Monday, September 5th, 2016 AT 10:01 AM
Tiny
BOB KULL
  • MEMBER
Well the only way to find out is take it to a garage that can run the scan. As of now changing the tumbler fixed the security light, turn the key on it stays on for a few seconds and goes out like it should I will have to find someone that can do the test
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Monday, September 5th, 2016 AT 11:45 AM
Tiny
SATURNTECH9
  • EXPERT
So do you still get the crank no start intermittently?
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Monday, September 5th, 2016 AT 11:47 AM
Tiny
BOB KULL
  • MEMBER
It was intermittent now the car wont start at all
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Monday, September 5th, 2016 AT 11:51 AM
Tiny
SATURNTECH9
  • EXPERT
Does it it just crank?Have you checked for spark and what the actual fuel pressure is?
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Monday, September 5th, 2016 AT 11:53 AM
Tiny
BOB KULL
  • MEMBER
The car cranks, sprayed some ether in and the car started and shut off so there is spark, the fuel pump runs, doesn't mean I have pressure which is a test I have to do. But why I did not think it was pressure, when ever the car would not start I would just turn the key around and it would start. So I have been focusing on the switch and tumbler. After trying to start for awhile I can smell gas
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Monday, September 5th, 2016 AT 12:05 PM
Tiny
SATURNTECH9
  • EXPERT
It might be flooded now have you tried holding your gas pedal all the way to the floor while starting it to see if it starts?
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Monday, September 5th, 2016 AT 12:08 PM
Tiny
BOB KULL
  • MEMBER
I did still did not start
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Monday, September 5th, 2016 AT 12:09 PM
Tiny
SATURNTECH9
  • EXPERT
I would check what the actual fuel pressure is and check for injector pulse.
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Monday, September 5th, 2016 AT 12:11 PM
Tiny
BOB KULL
  • MEMBER
Yea thats what I was thinking I know alot of people had this same issue with these cars I cant get a node light on the plugs without taking the whole air plenum off and I am looking to see if there is a fitting to get the pressure gauge on the fuel rail, it just has me confused because it started as a security issue unless the car had another problem and was a coincidence to be at the same time
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Monday, September 5th, 2016 AT 12:26 PM
Tiny
SATURNTECH9
  • EXPERT
Anything is possible you can't unplug any of the injector connectors without pulling the intake?Also all the GM cars I have seen have a threaded nipple to test what the full pressure is.
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Monday, September 5th, 2016 AT 12:44 PM
Tiny
BOB KULL
  • MEMBER
Yea I found the nipple its near the power steering pump on the passenger side
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Monday, September 5th, 2016 AT 12:53 PM
Tiny
SATURNTECH9
  • EXPERT
There usually close the fuel rail.
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Monday, September 5th, 2016 AT 12:56 PM

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