Steering Column Repair: 2003 Pontiac Grand Prix GTP ignition lockup, grand prix gtp, pontiac grand prix gtp

Question
After getting a inspection at Jiffy Lube, they went to start my GTP to pull it out of the bay.  Key went in fine, lights and bell sounded, but key in lock position and wouldn't turn, steering wheel also in lock up as well as transmission.  No amount of adjustment or pressure worked to release.  Changed the tilt, no luck either.  Just had it towed home.  

What is wrong and what do you suggest I do.

Answer
Hi Susan:
Sorry about your problem.  Usually the key gets stuck in the "on" position on these vehicles because of a shifter malfunction.  Make sure the car is in "Park" all the way.  Also make sure the little button on the shifter you have to push is fully extended out, rather than depressed in.  It should have spring tension to it or not move in at all.  This is the key release interlock system.  if that doesn't seem to help, then we'll try to get the key to work.

When the lock fails, it's usually because it's not reading the key correctly.  Obviously, try another key first.  If that doesn't work, try spraying some WD40 inside the lock, not a lot, just enough to lubricate the tumblers.  Then, gently (as if your thumb were in the way), tap the key with a hammer driving it deeper in the lock while you attempt to turn it.  Do this repeatedly in fast succession...tap, tap, tap, tap, tap all the while trying to turn the lock and key.

Finally, it none of that works, you are going to have to replace the lock.  The only problem is the release pin to get the lock out is only accessible in the 'start' position, so we will need to force the lock to get to that position, which means damaging the plastic lock cover and forcing it to turn with a pair of channel lock pliers.  Do this after you have exhausted all attempts to get it to turn without force.  Also, you will need to disconnect the battery, or the starter will remain engaged during this process (not good!!)
(I sincerely think it's an interlock related problem, not a lock cylinder problem though.)  

I am enclosing a link to our company website to help you understand the lock replacement procedure...it's fairly detailed and you need to be cautious or you will cause other GREAT expense by breaking the 4 way switch inadvertently.

http://www.stolenandrecovered.com/yourcar/index.php

Good luck

Doug