[KILRIK]

Picked up a 2003 GMC Sierra Single Cab long bed with 124,500 miles on it a few weeks ago. Shortly after the ignition lock cylinder locked up like they're known to do so I swapped it out with a new one. Swapped pins from the old to the new and somewhere along the way things didn't line up so when I reinstalled it was back to swear one with it being locked except now there was no chance of getting it to turn to be able to get it out.

Fast forward a few days later, a friend of mine comes over and with a screwdriver and some added "love" he got it to turn and got it out so I could replace it with yet another cylinder. Somewhere along the way, something got messed up because when I bought it, everything worked but when we got the new cylinder in and turned the key, the cruise control wouldn't work, the A/C wouldn't work (no matter the setting or fan speed), and the wipers don't work.

The kicker to all this? When I have the key turned to have just the battery on and not running, everything works. Start the truck and the previously mentioned components stop.

Is there something I'm missing here? Only think I can think of is that when I did the cylinder swap, I unhooked the battery and it may have reset something but not sure how to get that back.

Help?

Thanks in advance!

 

[KILRIK]

Anyone have any ideas as to what this could be? Played around with the battery the other day to see if it just needed a reset but haven't found anything so far. A fuse maybe?

 

[RayVoy]

The cylinder is mechanically connect to the ignition switch, you have something out of adjustment.

 

[KILRIK]

The cylinder is mechanically connect to the ignition switch, you have something out of adjustment.

I guess that's what I'm not understanding because whenever it's in the auxiliary position before completely cranking the engine, everything works but the moment I fully crank, everything goes dead. Should I just pull the cylinder back out and then reinstall or what?

 

[xPosTech]

The cylinder when in start normally drops all connections except those needed for starting: fuel, ecm,ignition, etc. All other connections go off when it's turned to the spring-loaded start position. When it starts and you release the key the spring returns the key to the run position.

You said it only powers accessories when in accessory. My key positions (clockwise) are off, accessory, run and start. Which means you have a problem with the run position. You either have a mismatch between cylinder position or the wrong cylinder. You may have put in a cylinder with accessory, off, run and start positions. That might explain why the first cylinder you installed wanted to stay in the column. Also your friend may have damaged the cylinder receptacle in the column.

That's about all of my guesses.

Ted