Will not turn off with key

Tiny
LYNN1958
  • MEMBER
  • 1992 CHEVROLET ASTRO
  • 4.3L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 10,000 MILES
Will not turn off with key, have put new key cillandar in and new switch
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Saturday, April 26th, 2014 AT 12:59 PM

6 Replies

Tiny
JDL
  • EXPERT
When the problem is ongoing, check for primary voltage at the coil, pink wire, Shouldn't have any voltage with the key off. If it has voltage with the key off, you need to check the circuit, connectors and wiring. The circuit could be shorted to voltage?

If no primary voltage at the ignition coil, then no spark and the vehicle is dieseling for some reason, Too high compression, cylinder temp too high maybe a hot spot?
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Saturday, April 26th, 2014 AT 1:40 PM
Tiny
JDL
  • EXPERT
Just to add, the key does turn to the off and lock position?
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Saturday, April 26th, 2014 AT 1:42 PM
Tiny
WRENCHTECH
  • EXPERT
Let me add something here for you...........
There is a piece of linkage (#20) that connects the ignition lock cylinder (#17) to the ignition switch (#46) which is mounted to the top of the steering column further down. This linkage commonly breaks, disconnecting the lock from the switch. You should be able to feel the rod just above the switch and you can see if it is moving when the switch is rotated.

IMG]https://www.2carpros.com/images/external/42240129.gif[/IMG]
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Saturday, April 26th, 2014 AT 2:09 PM
Tiny
WRENCHTECH
  • EXPERT
Missed some code on the image.

https://www.2carpros.com/images/external/42240129.gif
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Saturday, April 26th, 2014 AT 2:10 PM
Tiny
MAXIMILIAM
  • ADMIN
No, it will not turn off when locked.
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Sunday, April 27th, 2014 AT 12:48 AM
Tiny
LYNN1958
  • MEMBER
This started after we changed the fuel pump, could that have any thing to do with this?
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Sunday, April 27th, 2014 AT 11:54 AM

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