On Sun, 25 Aug 2019 22:28:18 -0400, wrote:

On Sun, 25 Aug 2019 17:40:19 -0500, dpb wrote:

Some time back I posted a query about the issue of having to jiggle the
ignition switch on the old '98 Chebby pickumup to Clare as to whether
symptomatic of key or lock. Suggested lock if key works in door; turns
out did so finally(!) got the round tuit and swapped out for new
cylinder this afternoon.

Works quite well but the annoyance factor is quite high in the doing it
phase with the fact GM didn't split the top/bottom halves of the cover
around the switch until at least '99 as the earliest--this thing has to
be prized off over the key cylinder in place which is no treat. Plus,
there's a two-piece stud holding the top LH side in place that turns but
doesn't release that a video shows was replaced by a long single
fastener later as well...

But, aggravation aside, can report is done and thanks! for the
diagnostic info so knew which way to go. Don't recall having had
another wear to this extent to being such a pain altho have had many
vehicles far older than this...dunno why this one was so hard. A couple
times in town wasn't sure was ever going to get it to turn -- about 2-3
full minutes of messing around was finally the straw to send me to NAPA
last week!

You are lucky, on my 69 Corvette, you needed to remove the steering
wheel and these days that involves the air bag, not something you want
to be screwing with.
Thpse middle aged GM switches were a royal pain in the
you-know-where. I ended up making a plate compressor several times
over the years - and have used a 3/4" drive socket as a puller too.
I also took the new one to a locksmith and had it keyed to my original
key so the door and ignition were the same.
I was having problems with my honda and I went to the dealer and had a
new key cut from the spec, not copying the blank. It worked a whole
lot better. My old key just seemed to be worn. The more I used it the
better it got and now it is like silk again.
Cutting from code is definitrly the preferred method. Used to
"nibble" a LOT of Toyota keys 30 to 40 years ago