V2 Throttle control problem - Page 2

Razorecko · #16 (**permalink**) 01-15-09, 12:49 AM

^ a missfire ?!? - I'd keep on eye on that after they reset it. Keep in mind very importantly that you have to make sure that every issue you have with the vehicle the dealership service dept. documents and that you have a copy of. If you ever decide to lemon a vehicle you need to prove that the problem initially came about within the first 12,000 miles of the vehicles life.

bergstpg · #17 (**permalink**) 01-15-09, 01:17 AM

I hope not. I have been waiting a long time for this car and have yet to be able to see what it can do - since the weather has been so crappy. Ok - I am getting off my soap box.

darjae · #18 (**permalink**) 01-15-09, 01:36 AM

Quote:

Originally Posted by bergstpg

I hope not. I have been waiting a long time for this car and have yet to be able to see what it can do - since the weather has been so crappy. Ok - I am getting off my soap box.

I wish you luck and hope that it's an easy fix. I've not had any issues with mine (knocks wood). Again, I hope for a quick and easy resolution as I know how long I waited for this car.....

bergstpg · #19 (**permalink**) 01-15-09, 07:37 PM

No quick fix yet. In fact - after a half day of investigating - they have only come up with guesses. What they did tell me is that the Check Engine light is linked to the miss-firing of the spark-plugs on two of the cyclindars (50 or so one one and 20 or so on another). One option they are looking at is to replace the spark-plugs. I guess this a four hour deal - which includes the removal of the super-charger. I am not a fan of this option.

Fortunately they are going to try to call Cadillac headcourters to get some advice first. I told them to call me before dismantling my car, so, if anybody has had this issue and knows the fix - please respond.

In addition, I was told there is a recall on the V2. Recall 09003. Something to do with the positive battery cable coming in contact with the ground - or something like that. I don't think this is linked.

BLAH!!

RapidRob · #20 (**permalink**) 01-15-09, 08:09 PM

Quote:

Originally Posted by bergstpg

No quick fix yet. In fact - after a half day of investigating - they have only come up with guesses. What they did tell me is that the Check Engine light is linked to the miss-firing of the spark-plugs on two of the cyclindars (50 or so one one and 20 or so on another). One option they are looking at is to replace the spark-plugs. I guess this a four hour deal - which includes the removal of the super-charger. I am not a fan of this option.

Fortunately they are going to try to call Cadillac headcourters to get some advice first. I told them to call me before dismantling my car, so, if anybody has had this issue and knows the fix - please respond.

In addition, I was told there is a recall on the V2. Recall 09003. Something to do with the positive battery cable coming in contact with the ground - or something like that. I don't think this is linked.

BLAH!!

Very sorry to hear of the issues with your new V2! Hopefully when this is resolved, it will be the last issue you experience.

But referring to this link, http://www.autoblog.com/2008/01/14/d...-2l-superchar/ I can't really see how it would take 4 hours to change a couple of spark plugs.

Looks like they are well below the SC assembly to me ... but who knows. Good luck!

Rob

Razorecko · #21 (**permalink**) 01-15-09, 08:34 PM

If you have that many misfires i'm almost going to have to say that your motor is toast somehow. If that is the case than be ready to demand an entirely new vehicle as they will try to sit it at the dealer for 3 months while they basically rip your motor out. Hopefully i'm wrong and its something really funny.

bergstpg · #22 (**permalink**) 01-16-09, 06:06 PM

Day 2 in the shop: Still looking for the issue

. After some limited troubleshooting they have decided to replace the spark plugs. I was wrong earlier about the time required to change. He said it will take 1.7 hours - according to the Warrentee book. They are banking on this to fix the throttle and miss firing(check engine light) issues. Maybe tomorrow. I will get my car back - not holding my breath.

poor-sha · #23 (**permalink**) 01-16-09, 10:11 PM

Good luck and hope they get it fixed soon. I think I met your salesman today, did you buy from Bob? I'd PM you but I can't seem to send PMs yet on this forum.

bergstpg · #24 (**permalink**) 01-19-09, 06:48 PM

SOLVED!! Replacement of spark plugs fixed the problem. Thank god that it wasn't a larger issue - so those that were in the same camp as I - u can now breathe easier today.

RapidRob · #25 (**permalink**) 01-19-09, 06:56 PM

Quote:

Originally Posted by bergstpg

SOLVED!! Replacement of spark plugs fixed the problem. Thank god that it wasn't a larger issue - so those that were in the same camp as I - u can now breathe easier today.

Good to hear - congrats

If it were not a warrantee repair - are the plugs something one can change on their own? Are they reachable without much trouble on the LSA?

Rob

Razorecko · #26 (**permalink**) 01-20-09, 11:28 AM

Phew, thats a lucky break man. I'm sure thats a heavy load off your back !

bergstpg · #27 (**permalink**) 01-20-09, 01:00 PM

Not even a half mile outside the service center - problem still there

. They fixed the check engine light and miss-firing issue, but the throttle issue still exists. I made sure the service center manager felt the issue himself before I left. He told be that they would be calling Cadillac today for more advise.

His initial thought was the problem I was having was similar to others he has experienced in bulletin #08-07-30-039 - Automatic Transmission Service Fast Learn Adapts (SFL) Characteristics. In other words, the shift point is right where I normally drive the car - however - I am skeptical since I am able to get the problem to happen over a range of speeds over 30 MPH.

I did some more testing on my own. I noticed that this problem went away once I removed the TC - where in the past I thought it needed the Stability Control to be disabled. Another thing I noticed is that it seemed to not be as obvious - or may not even happen - once the car is warmed up. Our weather has been so cold lately, that I over-looked this posibility. Last night it was 20 degrees above zero - one of the highest temperatures I have seen since it has been failing.

So in summary, my money is the issue is tied to the Traction Control, Stability Control, and/or the cold weather. Not sure if the spark-plug (miss-firing) issue is tied, but could be to a decrease in amps through the system with the TC and/or SC enabled. Maybe I just need to drink more and then I won't notice the issue.

bergstpg · #28 (**permalink**) 01-22-09, 04:43 PM

Back into the shop today for another round of diagnostics.

On the spark plug issue - the techs working on my car have been asked to ship the original spark-plugs from my car directly to an Engineer at GM. It seems to have gotten their attention. I asked for a report of their analysis and will post once received.

bergstpg · #29 (**permalink**) 01-22-09, 09:47 PM

I added this note to another thread - but want to continue here till resolution.

The latest is the snow tire size is slightly larger than the stock tires and they think this might be the issue. Stay tuned.

dvandentop · #30 (**permalink**) 01-22-09, 11:02 PM

Quote:

Originally Posted by bergstpg

I added this note to another thread - but want to continue here till resolution.

The latest is the snow tire size is slightly larger than the stock tires and they think this might be the issue. Stay tuned.

are they just wider or are they taller tires.