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Received a letter yesterday from Pontiac telling me they will replace faulty converters up to 10 years or 120,000 miles. Letter referred to 2008 G6 with 2.4 engine and 4 speed automatic. I don't know what other years are covered. Thanks GM for stepping up to the plate on this one. Haven't had the problem myself but lots have. They also say they will reimburse those who have already paid for the repair. :)
 

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"...some 2008 model year Pontiac G6 vehicles may have a condition where the mat within the catalytic converter may erode, causing the illumination of the Malfunction Indicator Lamp."
 

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Verified in Canada.

10 years 193,000km

2006 Pontiac G6 4cyl

I went to GM today to price the part and go from there. We've had this problem for 3 months now and we were 15,000km over the previous coverage of 130,000km.

Very pleased with GM over this!

Dan
 

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Received a letter yesterday from Pontiac telling me they will replace faulty converters up to 10 years or 120,000 miles. Letter referred to 2008 G6 with 2.4 engine and 4 speed automatic. I don't know what other years are covered. Thanks GM for stepping up to the plate on this one. Haven't had the problem myself but lots have. They also say they will reimburse those who have already paid for the repair. :)
They replaced mine today -2009 2.4L with 50999 miles. Check engine light with P0420 code. They were courtious and offered, but did not push other services. $0.00 cost to me.
 

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Hi everyones,

Is this recall for the CAT is only for G6 , 2.4 L?
Is this apply only for G6 , 2.4 L 2008?
Is the CAT on a 2.4 L is different of the one on a 3.5 L?


Regards
 

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Talked to dealer service dept. They said the cat warranty extension on my 08 G6 is good till 120k miles or 2017, whichever comes first. However, the SEL light MUST be on with the faulty cat code for them to replace it through the warranty. What bullshit! If there is enough of a problem to extend the warranty then do they really think that some of the exact same cats won't fail? Of course not! They are just hoping not everyone will see this warranty extension and get it replaced on GM's dime. So it's either I replace it on my own or continue to drive it in the unsafe condition until the light decides to come on. Very disappointed with GM in this aspect of the repair they are offering. My G6 is accelerating so poorly I refuse to allow my wife or daughters to drive it in fear that they will try and accelerate to cross an intersection or get on the highway and may get in an accident due to the poor acceleration. My father is a retired GM worker and I have owned 9 GM vehicles in my life but instances like this are driving me away. I was very close to buying a Cruze the other day, but didn't and I'm not sure I will because I am so done dealing with GM and how they handle things like this. And no I do not believe I would be reimbursed later if I did the job myself because I already got screwed years ago on my 02 trailblazer when my taillight circuit board crapped out and the recall was to be announced soon after but I had to fork out over $350 to the dealer only to haven GM corporate tell me that even though their own GM dealer mechanics said it was the same problem that the recall was that GM corporate didn't think so and I was NOT reimbursed. I'm just tired of going down this road with GM.
 

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Do a backpressure test on the cat, you may find the cat is not even your problem...
 

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So, as i am waiting for my cat to fail (if that is indeed the problem) i borrowed a buddies scan tool. I still have no codes stored but what i am wanting to do is monitor the cat O2 sensors as the car is being driven. My question is what parameters am i looking for in a good or failing cat? I didn't see thread addressing this so i figured i'd ask the question here. Thanks again in advance for any help. Oh, and i don't know anybody with a back pressure gauge so i'm outta luck in that dept.
 

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Most auto stores will rent out tools like a backpressure gauge
 

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None of the parts stores in my area (autozone,advance,oreilly,napa) rent out the back pressure gauge. My 08 is still limping along as it has been with no codes present. I tried to p.m. The GM Customer Rep on the site but did not get a response. If they are reading this I would appreciate if they would contact me. I'm about to drive this hunk of shit into a nearby quarry and buy a Ford.
 

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I am happy to report that the GM rep has contacted me. We'll see how it goes trying to get the dealer to diagnose weather or not the cat is bad under the warranty. Still no codes but still runnin' like crap.
 

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Sorry if this is a late and or a dumb question, but have you already checked the normal tune up items, Air filter, plugs, wires, etc? I think GM says to change the plugs and wires at 100k.
 

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Yes, i just changed the plugs a few weeks ago, air filter is clean, cleaned the MAF with MAF cleaner, ran a bottle of fuel injector cleaner a couple of tanks of gas ago, have no SES light on and no codes stored.
 

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Well, it's been almost a week since i've had any correspondence from the GM Customer Service Rep. If she is reading this would she please check her private message inbox and correspond with me via the email or the phone number i provided. Thanks
 

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Well FINALLY the SES light came on today. Had it scanned and the infamous P0420 code popped up. (imagine that) So i called the dealer and i set up to drop it off Monday morning so they can look at it. Now only if i can get through the rest of this without any problems with the dealer trying to screw me i'll be not nearly as ticked off as i have been. I STILL have yet to hear back from the GM rep that contacted me before. If you are reading this GM i'd LOVE to have some assurance that this will be resolved and that it will be recorded in what ever fashion that you said you wished to do in the instant message that this car was nearly undriveable for MONTHS before the code popped up. We'll see how this goes.
 

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Ok, so I dropped my car off Sunday night and I am happy to report that after the dealer replaced the Catalytic Converter and manifold that the car is yet again running like a champ! This was all covered under the extended cat coverage (120K miles or 2017). Also GM Customer Service did get back to me and were very helpful, thank you Jennifer and Andraya. I am, however, very disappointed that the policy on this issue is to only allow for diagnosis if the P0420 code is present. My car was nearly unable to be driven for months due to how poorly is was accelerating, and yet since there was no code present the dealer refused to do any other diagnosis. This, GM, is unacceptable in my opinion. So if any of you G6 owners are having poor acceleration and cannot get above 65mph on the highway then there is a very real possibility that your Catalytic Converter is going bad.
 

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Glad to hear that she's feeling better!
 
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