05-04-2016, 08:28 AM | #1 |
:chevy:
Drives: 2LT/RS Join Date: Jun 2008
Location: Toronto
Posts: 13,033
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Fixed Chains, Now Knocking
Hey Guys,
So I got my chains replaced costing me total 1750 from GM. I never had a knocking noise before the service, but now my motor is knocking. So I test drove it and brought it back to them. They said they would diagnose it. Unfortunately they just called me and said that they would need to tear down the motor another 6-12 hours at $140 labour just to figure out the knock Not sure what to do. I didn't ask them to diagnose the car before I did the service since I knew it was the chains. The CEL is gone and the power is back, the motor is just knocking really loud Not sure what to do now
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Consult your doctor before taking Camaro Side effects include Sudden increase in Heart Rate, Insomnia and occasional hallucinations If you experience Permagrin exceeding 4 hours after taking Camaro, seek immediate Camaro5 Help CAMARO Bringing excitment back into the Garage |
05-04-2016, 08:48 AM | #2 |
Drives: 2010 Camaro SGM 1LT M6 Join Date: Jan 2015
Location: Rochester, NY
Posts: 1,630
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Sorry to hear about that man but I can say I've been there and know exactly what you're going through. You have three choices really.
First Choice, let the dealer tear into the motor and diagnose the knock (btw shouldnt take 6-12hrs) and allow them to repair the knock which I believe the repair comes with a 1year/12,000mile warranty. Second Choice, Buy a crate motor through GM (This is what I did) and allow the dealer to replace the motor completely which comes with a 3year/100,000 mile warranty. Third Choice, find a reputable engine build shop in your area that can do the V6 work (cheapest option) no added warranty General Crate motor Cost without labor: $4,399.97 Even the motor repair by the dealer is upwards of $3k
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2010 SGM M6 1LT - SOLD Current - 2009 C6 Corvette Z51 |
05-04-2016, 09:29 AM | #3 | |
:chevy:
Drives: 2LT/RS Join Date: Jun 2008
Location: Toronto
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Quote:
What I don't get is that there was no knock like this when I brought it in and now its a loud knock. Can it be something simple like sparkplugs or bad fuel?
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CAMARO
Consult your doctor before taking Camaro Side effects include Sudden increase in Heart Rate, Insomnia and occasional hallucinations If you experience Permagrin exceeding 4 hours after taking Camaro, seek immediate Camaro5 Help CAMARO Bringing excitment back into the Garage |
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05-04-2016, 09:36 AM | #4 |
Drives: 2010 Camaro SGM 1LT M6 Join Date: Jan 2015
Location: Rochester, NY
Posts: 1,630
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With a spark plug issue you would get a misfire not really a knocking noise. The V6 already recommends bad gas so I'm not sure that would be the issue either.
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05-04-2016, 09:41 AM | #5 |
:chevy:
Drives: 2LT/RS Join Date: Jun 2008
Location: Toronto
Posts: 13,033
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Yea man I have no cel, engine runs smooth, full power. Just a loud audible knock when it revs above 2000rpm. But I cant hear it when its idling.
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CAMARO
Consult your doctor before taking Camaro Side effects include Sudden increase in Heart Rate, Insomnia and occasional hallucinations If you experience Permagrin exceeding 4 hours after taking Camaro, seek immediate Camaro5 Help CAMARO Bringing excitment back into the Garage |
05-04-2016, 10:39 AM | #6 |
Drives: 2010 2ss ss/rs abm, 2016 2ss/rs hbm Join Date: Feb 2009
Location: N. Phx, Az
Posts: 1,332
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What's the oil pressure when the knocking occurs? I've seen poorly trained technicians leave the opening for the oil pan uncovered once the front cover is removed. When they go to clean the old RTV off the engine block it drops down into the oil pan and eventually clogs the oil pickup screen. Hopefully its not the case, but the description sounds very familiar.
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05-04-2016, 10:47 AM | #7 |
Drives: 2010 Camaro SGM 1LT M6 Join Date: Jan 2015
Location: Rochester, NY
Posts: 1,630
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Mine also didnt knock at idle. I only heard it under load at 2200rpm to 2800rpm
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Arkentect's Build Thread!! - UPSTATE C5 MEMBER
2010 SGM M6 1LT - SOLD Current - 2009 C6 Corvette Z51 |
05-04-2016, 10:59 AM | #8 |
:chevy:
Drives: 2LT/RS Join Date: Jun 2008
Location: Toronto
Posts: 13,033
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Great... this is exactly where I didn't want to be.
I don't understand how they want me to pay for the teardown when it didn't have knock before?
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CAMARO
Consult your doctor before taking Camaro Side effects include Sudden increase in Heart Rate, Insomnia and occasional hallucinations If you experience Permagrin exceeding 4 hours after taking Camaro, seek immediate Camaro5 Help CAMARO Bringing excitment back into the Garage |
05-04-2016, 11:16 AM | #9 |
:chevy:
Drives: 2LT/RS Join Date: Jun 2008
Location: Toronto
Posts: 13,033
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Dealer is adamant on me paying for the tear down to diagnose
Any suggestions guys? Do I take the car back or do I get them to do the teardown at my cost and than pay for the repair?
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CAMARO
Consult your doctor before taking Camaro Side effects include Sudden increase in Heart Rate, Insomnia and occasional hallucinations If you experience Permagrin exceeding 4 hours after taking Camaro, seek immediate Camaro5 Help CAMARO Bringing excitment back into the Garage |
05-04-2016, 11:17 AM | #10 |
:chevy:
Drives: 2LT/RS Join Date: Jun 2008
Location: Toronto
Posts: 13,033
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This dealer has been good to me though which is why I am keeping cool.
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CAMARO
Consult your doctor before taking Camaro Side effects include Sudden increase in Heart Rate, Insomnia and occasional hallucinations If you experience Permagrin exceeding 4 hours after taking Camaro, seek immediate Camaro5 Help CAMARO Bringing excitment back into the Garage |
05-04-2016, 11:18 AM | #11 |
:chevy:
Drives: 2LT/RS Join Date: Jun 2008
Location: Toronto
Posts: 13,033
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So it never threw a code or anything? Just the noise?
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CAMARO
Consult your doctor before taking Camaro Side effects include Sudden increase in Heart Rate, Insomnia and occasional hallucinations If you experience Permagrin exceeding 4 hours after taking Camaro, seek immediate Camaro5 Help CAMARO Bringing excitment back into the Garage |
05-04-2016, 02:22 PM | #12 |
:chevy:
Drives: 2LT/RS Join Date: Jun 2008
Location: Toronto
Posts: 13,033
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Motor is being torn down, will keep those interested posted
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CAMARO
Consult your doctor before taking Camaro Side effects include Sudden increase in Heart Rate, Insomnia and occasional hallucinations If you experience Permagrin exceeding 4 hours after taking Camaro, seek immediate Camaro5 Help CAMARO Bringing excitment back into the Garage |
05-04-2016, 03:18 PM | #13 |
Drives: 2011 Camaro LT1 Join Date: Apr 2015
Location: Florida, United States
Posts: 336
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At this point. I would try to negotiate a deal on a new crate engine. I have 2011 v6 and i am scared this will happen to me soon. I have been thinking of selling my baby and getting a 2010-2010 GTI. VW cost more to maintain, but they last forever. Vw really stands behind their product. I just can't seem to let silver fox go.
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05-04-2016, 04:24 PM | #14 |
Check the oil level. I'm changing out an LLT with a new crate engine right now. No real warning just seemed to start knocking and then seized up. No oil in crankcase. I feel bad for you. It is however expensive no matter which way you go. We are doing the labor ourselves so saving that portion. But it's hours and hours of work even with the right tools and facility.
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