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73-87chevytrucks.com
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73-87 Chevy _ GMC Trucks
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Steering Columns
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Ignition cylinder
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Topic: Ignition cylinder (Read 9448 times)
maximus5541
Newbie
Posts: 28
Ignition cylinder
«
on:
July 27, 2008, 12:25:17 PM »
Has anyone ever experienced problems with the key cylinder. When i put the key in the ignition and trun it to the run position usually the seat belt and choke light come intermittley, but now i have to jiggle the key to get it to come on, as a result in this the truck will not start, it just cranks over with no spark.
Logged
1983 Chevy C10 SWB, 2wd, 350/350
1987 Chevy R20 LWB, 2wd, 305/400
1983 Chevy C10 LWB, 2wd, 305/700r4
cracker0169
Registered Users
Posts: 150
Re: Ignition cylinder
«
Reply #1 on:
July 27, 2008, 12:49:16 PM »
sounds like bad contacts on the ignition switch under the dash
Take a voltmeter and check to see if you are getting 12v at the distributor with the key on the 'run' position.
Logged
1981 K10, 350 - SM465 - NP205 sittin' on 37's
1983 C10, 305HO - TH400
maximus5541
Newbie
Posts: 28
Re: Ignition cylinder
«
Reply #2 on:
July 28, 2008, 01:49:03 PM »
i will try that this evening, i will post back the results., thanks for the help in advance
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1983 Chevy C10 SWB, 2wd, 350/350
1987 Chevy R20 LWB, 2wd, 305/400
1983 Chevy C10 LWB, 2wd, 305/700r4
maximus5541
Newbie
Posts: 28
Re: Ignition cylinder
«
Reply #3 on:
July 29, 2008, 09:13:20 PM »
well, i checked it, and there is voltage at the dist. only when i jiggle the key, so the problem lies between the key cylinder and the dist. i know the key turns, and that pulls and pushes a little metal rod up and down the column, then im lost?
Logged
1983 Chevy C10 SWB, 2wd, 350/350
1987 Chevy R20 LWB, 2wd, 305/400
1983 Chevy C10 LWB, 2wd, 305/700r4
cracker0169
Registered Users
Posts: 150
Re: Ignition cylinder
«
Reply #4 on:
July 29, 2008, 10:35:56 PM »
that rod goes into an igntion switch. possibly the rod is bent or the switch is just wore out. i dont believe they are that expensive but I would the switch and check it out and see if there is any slop in the operation of it all.
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1981 K10, 350 - SM465 - NP205 sittin' on 37's
1983 C10, 305HO - TH400
78BBSTEPSIDE
Registered Users
Posts: 189
Re: Ignition cylinder
«
Reply #5 on:
July 29, 2008, 10:42:15 PM »
I 've had several switches go bad through the years. A $20.00 switch that is priceless. No contact=no go! Good Luck
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DnStClr
Senior Member
Posts: 1809
Re: Ignition cylinder
«
Reply #6 on:
July 29, 2008, 11:22:11 PM »
I'd like to learn more about the ignition switch and rod. Hard to replace? My new 87 Silverado (well, newly bought) has a similar problem where it won't shut off after the key is turned.
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Don
87 Chevy Silverado
VileZambonie
Global Moderator
Senior Member
Posts: 19022
Re: Ignition cylinder
«
Reply #7 on:
July 30, 2008, 10:25:15 AM »
Check the rack mechanism in the column and see if it's broken.
Logged
, ___
/ _ _ _\_
⌠ŻŻŻŻŻ' [☼===☼]
`()_);-;()_)--o--)_)
74 GMC
,
75 K5
,
84 GMC
,
85 K20
,
86 k20
,
79 K10
DnStClr
Senior Member
Posts: 1809
Re: Ignition cylinder
«
Reply #8 on:
July 30, 2008, 07:32:03 PM »
Hope I'm not stealing the thread- The rod for my switch moves up and down too, just like Maximuss's. Actually it looks like it moves just a tad too far down when ignition is turned off. A slight push upward on the rod turns my ignition off. I wonder if I can bend the rod a little to make it align better?
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Don
87 Chevy Silverado
VileZambonie
Global Moderator
Senior Member
Posts: 19022
Re: Ignition cylinder
«
Reply #9 on:
July 30, 2008, 09:49:32 PM »
Don, the rack mechanisms are nototrious for breaking in the column which causes these problems. I would pop it apart and check it.
Logged
, ___
/ _ _ _\_
⌠ŻŻŻŻŻ' [☼===☼]
`()_);-;()_)--o--)_)
74 GMC
,
75 K5
,
84 GMC
,
85 K20
,
86 k20
,
79 K10
VileZambonie
Global Moderator
Senior Member
Posts: 19022
Re: Ignition cylinder
«
Reply #10 on:
July 30, 2008, 10:05:46 PM »
Here's an article on how to disassemble the steering column
Click Here
Logged
, ___
/ _ _ _\_
⌠ŻŻŻŻŻ' [☼===☼]
`()_);-;()_)--o--)_)
74 GMC
,
75 K5
,
84 GMC
,
85 K20
,
86 k20
,
79 K10
maximus5541
Newbie
Posts: 28
Re: Ignition cylinder
«
Reply #11 on:
July 31, 2008, 01:57:52 PM »
well checked it all out and replaced the ignitoin switch and no more problems.
Logged
1983 Chevy C10 SWB, 2wd, 350/350
1987 Chevy R20 LWB, 2wd, 305/400
1983 Chevy C10 LWB, 2wd, 305/700r4
DnStClr
Senior Member
Posts: 1809
Re: Ignition cylinder
«
Reply #12 on:
August 09, 2008, 04:28:02 PM »
Got mine fixed too. The rack mechanism was ok. I had to loosen the ignition switch and move it forward a little bit. ( a bear to get to!) Works good now. no more accessories running when I turn the key off..
Logged
Don
87 Chevy Silverado
cwilson jr
Registered Users
Posts: 195
Re: Ignition cylinder
«
Reply #13 on:
January 17, 2009, 07:03:24 PM »
not trying to bring up old posts guys, but there is a link posted above about tearing apart the steering column which may be very useful to me. it just goes to a random post listing now. does anyone have the original information, or any detailed information and pics of the ignition rack and lock cylinder? i can't find any detailed info, including the haynes and old posts.
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VileZambonie
Global Moderator
Senior Member
Posts: 19022
Re: Ignition cylinder
«
Reply #14 on:
January 17, 2009, 07:14:41 PM »
What exactly is the problem with your column? Loose tilt?
Logged
, ___
/ _ _ _\_
⌠ŻŻŻŻŻ' [☼===☼]
`()_);-;()_)--o--)_)
74 GMC
,
75 K5
,
84 GMC
,
85 K20
,
86 k20
,
79 K10
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73-87 Chevy _ GMC Trucks
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Ignition cylinder