GM admits Column Lock problem, solution
Le Mans Master
Joined: Sep 2000
Posts: 6,098
Likes: 43
From: ABQ NM
Cruise-In II Veteran
Originally Posted by TEXHAWK0
Removing the lockplate keeps the column from locking, but if the actuator fails, the BCM will sense that the actuator is in the locked position and will shut off the fuel. The GM harness works just like the aftermarket CLB's and contains a relay to send a signal to satisfy the BCM to prevent the fuel from being shut off, regardless of what position the actuator is in. In fact, you can plug in the GM harness without connecting the actuator side, and the car will function normally.
Burning Brakes
Joined: Jun 2004
Posts: 1,240
Likes: 2
From: Cedar Rapids Iowa
Originally Posted by leadfoot4
Not necessarily...Not to beat a dead horse, I'll say this one last time. I put a CLB in my 2001 coupe, and it (the CLB) did not hold the lock pin in a completely retracted mode. as I turned the steering wheel, I'd hear a click-click-click as the pin hit the detents. Took the CLB out, no more clicking.
(And, yes, before hundreds of satisfied CLB owners chime in, I know I'm asking for a lock-up, but it just didn't work on my car...)
(And, yes, before hundreds of satisfied CLB owners chime in, I know I'm asking for a lock-up, but it just didn't work on my car...)
The only explanation that I can think of for what you say is that you had a marginal motor when you installed your CLB and it was not fully retracted when you disconnected the power cables. That could have caused the grinding sound that you report when you turned the wheel. The instructions clearly state that you must have an operational motor when you begin the CLB installation.
Last edited by slwhite; Feb 10, 2006 at 12:06 AM.
Team Owner
Joined: May 2001
Posts: 87,298
Likes: 1,583
From: Western NY
Originally Posted by slwhite
This does not make sense to me. Part of the procedure for installing the CLB is to permanently disconnect the power from the motor after it has retracted. After that is done the motor is dead and can do nothing. All the CLB module does is to fool the computer into thinking that the now disconnected motor is working properly.
The only explanation that I can think of for what you say is that you had a marginal motor when you installed your CLB and it was not fully retracted when you disconnected the power cables. That could have caused the grinding sound that you report when you turned the wheel. The instructions clearly state that you must have an operational motor when you begin the CLB installation.
The only explanation that I can think of for what you say is that you had a marginal motor when you installed your CLB and it was not fully retracted when you disconnected the power cables. That could have caused the grinding sound that you report when you turned the wheel. The instructions clearly state that you must have an operational motor when you begin the CLB installation.
Race Director
Joined: Nov 2005
Posts: 14,548
Likes: 1,538
From: Supporting the Corvette Community at Abel Chevrolet in Rio Vista, CA 707-374-6317 Ext.123
St. Jude Donor '08
Originally Posted by captainpooby
I've read the service bulletin in PDF form and it's a pretty involved procedure. Removal of a lot of panels, switches, connectors, re and re the steering wheel, do the job and put it all back together.
Seems like an awful lot of work and that it would take some time to do it right and be careful not to damage anything in the process. I have never performed this procedure so take this with a grain of salt.
True to form, GM (like any other manufacturer dealing with a warranty recal) has allowed a grand total of....get this, .8 hours for the job.
It's going to take a tech .2 hours just to get the car in and out of his bay so that leaves him a grand to total of .6 hrs to do the work and earn a paycheck. Doesnt seem like much time to me. I doubt any tech will be able to break even on this flate rate time, certainly not the first time they do one.
Seems like an awful lot of work and that it would take some time to do it right and be careful not to damage anything in the process. I have never performed this procedure so take this with a grain of salt.
True to form, GM (like any other manufacturer dealing with a warranty recal) has allowed a grand total of....get this, .8 hours for the job.
It's going to take a tech .2 hours just to get the car in and out of his bay so that leaves him a grand to total of .6 hrs to do the work and earn a paycheck. Doesnt seem like much time to me. I doubt any tech will be able to break even on this flate rate time, certainly not the first time they do one.
And it didn't take him 12 minutes (.2 hours) to get the car in the bay. It was closer to 3 minutes total.
Instructor
Joined: May 2005
Posts: 196
Likes: 0
Originally Posted by RichieRichZ06
I had mine done on Wednesday and the tech had .7 flagged on my repair order. After doing a couple they can do it quickly and carefully and not lose any time. It sounds a lot more complicated than it really is.
And it didn't take him 12 minutes (.2 hours) to get the car in the bay. It was closer to 3 minutes total.
And it didn't take him 12 minutes (.2 hours) to get the car in the bay. It was closer to 3 minutes total.
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Burning Brakes
Joined: Jun 2004
Posts: 1,240
Likes: 2
From: Cedar Rapids Iowa
Originally Posted by leadfoot4
That very well may be the case, however once I removed the CLB, the actuator worked as GM intended, and has been OK since. I put the CLB in the car in early summer of 2004, and removed it within 24 hours. I drove the car the remainder of 2004, and all of last summer without any problems (Knock on wood...).
Burning Brakes
Joined: Jun 2004
Posts: 1,240
Likes: 2
From: Cedar Rapids Iowa
Originally Posted by RichieRichZ06
I had mine done on Wednesday and the tech had .7 flagged on my repair order. After doing a couple they can do it quickly and carefully and not lose any time. It sounds a lot more complicated than it really is.
And it didn't take him 12 minutes (.2 hours) to get the car in the bay. It was closer to 3 minutes total.
And it didn't take him 12 minutes (.2 hours) to get the car in the bay. It was closer to 3 minutes total.
Le Mans Master
Joined: Sep 2003
Posts: 8,847
Likes: 795
From: Longview Texas
Originally Posted by wamara
Can you clarify this statement? I was under the impression that the first recall, as it pertained to manual trannie cars, was to ensure that the fuel was cut off (BCM reflash) - prior to that, the car would still run. So if you never had the first recall done, all you would need is removal of the locking plate. Even if there was some sort of electronic glitch, the column wouldn't lock and the engine would still run.
My car has never had any of the recalls performed on it, and I have not disconnected the actuator to see if the fuel shuts off, but from the way I read the recall notice, the cars were ALWAYS designed to shut off the fuel if the BCM determined the actuator was in the locked position, OR if the BCM could not determine the position of the actuator. The BCM reflash was just to make sure the fuel was shutoff in the cases where there was low voltage or not enough time for the BCM to correctly determine the actuator status. Under certain conditions the actuator could be locked, and the BCM would not send the signal to shutoff the fuel, so the car could be driven with the column locked.
If an aftermarket CLB or similar device (in my case the Harness K) was not required in the circuit to send the correct signal to the BCM for all cars, then people would just be disconnecting the actuator and not installing the bypass.
Race Director
Joined: Nov 2005
Posts: 14,548
Likes: 1,538
From: Supporting the Corvette Community at Abel Chevrolet in Rio Vista, CA 707-374-6317 Ext.123
St. Jude Donor '08
Originally Posted by yoman
.7? Are you saying it took them .7 hours to do the work?
Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
Originally Posted by bowtiebandit
To clear up some miss information there was a misprint in one of the notices sent out to the dealers this week..I spent alot of time this afternoon trying to get it clarified from GM..hopefully will know more in the AM
This is what our service information says....
Correction
Dealers are to remove the column lock plate on U.S. and Canadian vehicles equipped with an automatic transmission. After the service correction, the steering column will no longer lock when the key is removed.
On vehicles equipped with a manual transmission, and export vehicles equipped with an automatic transmission, dealers are to 1) reprogram the PCM, and 2) verify there is adequate lock plate clearance and, if necessary, replace the lock plate. After the service correction, the steering column will continue to lock when the key is removed.
This is what the PDF says...
CORRECTION
Dealers are to remove the column lock plate on U.S. and Canadian vehicles equipped with an automatic transmission and U.S. vehicles equipped with a manual transmission. After the service correction, the steering column will no longer lock when the key is removed.
On Canadian and export vehicles equipped with a manual transmission, and export vehicles equipped with an automatic transmission, dealers are to 1) reprogram the PCM, and 2) verify there is adequate lock plate clearance and, if necessary, replace the lock plate. After the service correction, the steering column will continue to lock when the key is
removed.
Clearly 2 different procedures when dealing with a manual equipped vehicle.
Hopefully it will be resolved soon..sorry guys..
This is what our service information says....
Correction
Dealers are to remove the column lock plate on U.S. and Canadian vehicles equipped with an automatic transmission. After the service correction, the steering column will no longer lock when the key is removed.
On vehicles equipped with a manual transmission, and export vehicles equipped with an automatic transmission, dealers are to 1) reprogram the PCM, and 2) verify there is adequate lock plate clearance and, if necessary, replace the lock plate. After the service correction, the steering column will continue to lock when the key is removed.
This is what the PDF says...
CORRECTION
Dealers are to remove the column lock plate on U.S. and Canadian vehicles equipped with an automatic transmission and U.S. vehicles equipped with a manual transmission. After the service correction, the steering column will no longer lock when the key is removed.
On Canadian and export vehicles equipped with a manual transmission, and export vehicles equipped with an automatic transmission, dealers are to 1) reprogram the PCM, and 2) verify there is adequate lock plate clearance and, if necessary, replace the lock plate. After the service correction, the steering column will continue to lock when the key is
removed.
Clearly 2 different procedures when dealing with a manual equipped vehicle.
Hopefully it will be resolved soon..sorry guys..
SO WHICH ONE IS RIGHT? ... the PDF or the service information? ... you really don't say for sure.
Is bulliten 04006C the latest and greatest? Note on 04006C below:
THIS BULLETIN CANCELS AND REPLACES BULLETIN 04006B, ISSUED
NOVEMBER 2004. THE SERVICE PROCEDURE FOR U.S. VEHICLES EQUIPPED WITH A MANUAL TRANSMISSION HAS BEEN REVISED. PLEASE REVIEW THIS NEW INFORMATION IMMEDIATELY. ALL COPIES OF BULLETIN 04006B SHOULD BE DESTROYED.
Last edited by ZeeOSix; Feb 12, 2006 at 04:25 PM.
Le Mans Master
Joined: Feb 2002
Posts: 5,407
Likes: 1
From: HONOLULU HAWAII
I don't see the confusion....this new bulletin cancels the 2004 one. They will remove the locking plate in all US cars (both auto and manuals) but not in the Canadian or export manual cars.
Im sticking with my CLB.
Im sticking with my CLB.
Drifting
Joined: Oct 2004
Posts: 1,330
Likes: 0
From: Moorhead MN
Originally Posted by SMR 67
I just had my '04 Z06 in for service - the original CLB recall had never been done on the car, but the dealer (who I actually trust believe it or not) said that my VIN wasn't showing the need to even do the CLB recall. I figured it was because it was a late build date for the 2004's (3/18/04) and they had "fixed" it by then.
Regardless, I was still going to get the CLB and install it myself based on all the recommendations in this Forum. Guess I won't do that now. Hope it doesn't lock up on me between now and when I bring it in for this new recall
Regardless, I was still going to get the CLB and install it myself based on all the recommendations in this Forum. Guess I won't do that now. Hope it doesn't lock up on me between now and when I bring it in for this new recall
Mine isn't listed in the covered serial numbers either, but I put the CLB on last summer and would do so even now. I don't have to worry about it anymore. Dan
Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
Originally Posted by WWK888
I don't see the confusion....this new bulletin cancels the 2004 one. They will remove the locking plate in all US cars (both auto and manuals) but not in the Canadian or export manual cars.
Im sticking with my CLB.
Im sticking with my CLB.
"To clear up some miss information there was a misprint in one of the notices sent out to the dealers this week ..."
I'd take that as meaning the latest bulletin had some mis-imformation in it. Last week was not the 2004 bulletin IMO. He never made it completly clear which "Correction" statement from GM was the correct one. See his quotes (made a few days ago) ---> http://forums.corvetteforum.com/show...&postcount=108
He also says:
"Hopefully it will be resolved soon..sorry guys .."
So maybe GM has sent out some mis-information that is currently all over every Vette board in the world.
Last edited by ZeeOSix; Feb 13, 2006 at 02:06 AM.
Safety Car
Joined: Apr 2000
Posts: 3,802
Likes: 61
From: Wichita KS
Originally Posted by mtjulietdba
Here is a link to search the National Highway Traffic Safety Admin for any recalls, and yes, this is on there.
http://www-odi.nhtsa.dot.gov/cars/pr...callSearch.cfm
http://www-odi.nhtsa.dot.gov/cars/pr...callSearch.cfm
It is the original recall.
cc
Racer
Joined: Jul 2004
Posts: 405
Likes: 0
From: Colorado Springs CO.
Originally Posted by CCrane00
What they have on the NHTSA site does not address removal of the lock plate on MN6 equipped cars.
It is the original recall.
cc
It is the original recall.
cc
US cars with manual transmissions will have the locking plate removed AND a new harness/relay will be installed.
US cars with automatic transmissions that didn't previously have the column lock removed are included in this 'activity'.
Canadian and export cars with manual transmissions must retain the column lock as removal requires approval by their various governments.
Currently, the only US Corvette that will retain the column lock is the 2005 C6. Likely a letter to those owners will be forthcoming?
This 'activity' is not a requirement for owners, only an option offered by GM. No flashing of the PCM will occur as the procedure - 04006C - does not require it and has obsoleted previous versions which required the flash.
Team Owner
Joined: Feb 2003
Posts: 37,329
Likes: 12
From: Plano Texas
CI 6-7-8-9 Veteran
CI-VI Car Show Winner
St. Jude Donor '07-'08-'09-'10-'11-'12-'13
Originally Posted by vettecop1125
I fixed the problem myself. No way am I letting a dealer perform a half-azzed attempt at correcting this. There have been too many stories of the "recall" failing.
