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1989 Other Dodge Models won't shut off

Tiny
JERAUS
  • MEMBER
  • 1989 DODGE
  • V8
  • 2WD
  • AUTOMATIC
  • 128,000 MILES
When the key is turned off, the engine keeps running. Disconnecting the battery does not shut off the vehicle, I have to disconnect the coil wire to be able to shut off the truck.
1989 Dodge Ram Charger
Saturday, December 8th, 2007 AT 5:08 PM

10 Replies

Tiny
SADAMS2
  • MEMBER
  • 17 POSTS
I also have this problem with my 1998 Dodge Ram 1500. Does anyone have a solution?
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Monday, November 3rd, 2008 AT 5:28 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Disconnecting the battery does not shut off the vehicle, I have to disconnect the coil wire to be able to shut off the truck.

Disconecting the battery will shutdown the ignition system-for that to happen the engine has to be super hot to ignite the fuel left in the chamber that will cause pre-ignition and detonation.

Probable causes: Ignition timing off and a high curb idle speed.
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Monday, November 3rd, 2008 AT 5:40 PM
Tiny
SADAMS2
  • MEMBER
  • 17 POSTS
This is not an engine run-on issue such as you are describing. Turning the key to the off position has no effect on the running engine. I have to pull the engine control fuse from the main fuse block under the hood to kill the engine. Why would the key not be shutting the engine off?
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Monday, November 3rd, 2008 AT 8:35 PM
Tiny
RASMATAZ
  • MECHANIC
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You have an internal problem with the ignition switch
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Monday, November 3rd, 2008 AT 10:46 PM
Tiny
SADAMS2
  • MEMBER
  • 17 POSTS
I have replaced the ignition switch. It did not help.
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Tuesday, November 4th, 2008 AT 7:54 PM
Tiny
RASMATAZ
  • MECHANIC
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What model Dodge is this?

Disconnecting the battery does not shut off the vehicle, I have to disconnect the coil wire to be able to shut off the truck. When you did this, was the engine running?

If not the switch could be the ignition circuit is shorted to the battery feed going to the ignition switch this the only way for this to happen the wires in the harness could be touching
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Tuesday, November 4th, 2008 AT 8:22 PM
Tiny
SADAMS2
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  • 17 POSTS
98 Dodge Ram 1500

In my case I have to pull the Engine Control 2 fuse from the main fuse box under the hood to kill the engine. Yes it it running when I pull the fuse.
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Tuesday, November 4th, 2008 AT 9:19 PM
Tiny
RASMATAZ
  • MECHANIC
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With the key off check for power at the coil positive terminal dark green and orange wire-Do you have power
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Wednesday, November 5th, 2008 AT 1:38 PM
Tiny
SADAMS2
  • MEMBER
  • 17 POSTS
I'll check this out and get back to you.
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Thursday, November 6th, 2008 AT 7:58 PM
Tiny
SADAMS2
  • MEMBER
  • 17 POSTS
With the key in the off position, there was no power to the positive side of the coil. By the way, there was also no power to the positive side of the coil with the key in the on position either as far as I could tell.
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Sunday, November 9th, 2008 AT 3:14 PM

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