Looking For Ignition Switch Info
Thread Starter
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Senior User
Joined: May 2003
Posts: 167
Likes: 0
From: Omaha, NE
Looking For Ignition Switch Info
If I remember correctly, there was a thread where someone replaced
their ignition switch (the electronic part, not the key part), but I can't
seem to find it...
Could this happen? Switch works fine everywhere else but just makes
the engine miss a little at idle?
Thanks!
Scott
their ignition switch (the electronic part, not the key part), but I can't
seem to find it...
Could this happen? Switch works fine everywhere else but just makes
the engine miss a little at idle?
Thanks!
Scott
Elder User
Joined: Mar 2004
Posts: 517
Likes: 2
From: Texas
Switch Miss
I think what you are making reference may be thread about a grounding problem from the start solenoid (solenoid located on right passenger side wheel well area near battery) A bad ground (may cause a miss). A bad ground will cause a host of problems. The key lock switch located on the steering column normally just wears out over 20+ years of daily use, but rarely is the cause for a miss at idle. A worn key switch typically gets stubborn when it wears out and fails to make contact when the cylinder is rotated to the start position or fails to make contact in the run position. In short, the key switch normally gives you plenty of warning before it fails for good. If you have to "wiggle" the key switch in order to get the truck to start or stay running, it is time to replace it.
Thread Starter
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Senior User
Joined: May 2003
Posts: 167
Likes: 0
From: Omaha, NE
That may be, but again, the ignition switch I was referring to was NOT
the key switch, but the electrical switch mounted on the column.
This would be the switch that gets activated by the key switch via a
little rod that runs down the column.
Someone was replacing it to fix a problem on their truck, I thought it
was for an intermittant miss, maybe it was for starting issues?
Thanks!
Scott
the key switch, but the electrical switch mounted on the column.
This would be the switch that gets activated by the key switch via a
little rod that runs down the column.
Someone was replacing it to fix a problem on their truck, I thought it
was for an intermittant miss, maybe it was for starting issues?
Thanks!
Scott
Elder User
Joined: Mar 2004
Posts: 517
Likes: 2
From: Texas
Okay the actuator
Okay, on the other side of the key lock, IS THE ACTUATOR and switch . I normally replace all of the parts and am sorry for not making the distinction between the them. The switch not only attaches to the start circuit harness but is activated by the control rod actuator from the key lock assembly. I normally replace everything at once to avoid having to go back in to fiddle with a bent or binding actuator rod. When I say everything, the parts I replace are the switch, key lock, actuator rod, and return spring. Most big chain auto part stores carry these items in the help section but they can be ordered if not in stock.
Elder User
Joined: Mar 2004
Posts: 517
Likes: 2
From: Texas
Rarely a miss
I did write that the ignition switch is rarely the cause of a miss, but I didn't rule it out entirely. An ignition switch that is not making good contact can be found fairly quickly during a routine electrical troubleshoot session, although it could be mistaken for a bad ground as well.
