Cracked Manifold

Swendor · 07-03-2009, 07:44 PM

I discovered this today after hearing my engine get progressively louder. Is there anyway to repair this or do I have to get it replaced? 2006 Aggressive, 76K mi.

kwtoxman · 07-03-2009, 08:12 PM

Ouch! That is not normal at all.

If so a welder can probably do a quick fix and you can see how it holds. Not good GM quality.

Hoosier GXP · 07-03-2009, 08:34 PM

Those manifold are made from cast iron and I will venture to say you will have little luck fixing it. Might be a good time to look into a header since you are going to have to replace it. Not sure of your location but a search on Car-Part.com--Used Auto Parts Market will produce some hits for it around $50

zzzybil · 07-03-2009, 08:47 PM

gotta be replaced-

- a welder might tell yuh different ? i just don't see a patch holding...
between labor and PIA factor - the odds on a repeat performance

looks like an excuse to upgrade - and be done

you win today's contest ----> " things that make yuh say " (((

))) dam

76k miles - no mods ???.

Swendor · 07-03-2009, 08:53 PM

Thanks guys. I've seen some PERMATEX® Hi Temp. Metal Repair Compound which is specified for manifolds and supposed to be good for 2000 degrees. Could I use this as a temporary fix until I get a replacement? Are there any adverse effects that could come from letting it go too long besides the noise?

druid-2 · 07-03-2009, 09:33 PM

Quote:

Originally Posted by kwtoxman

Ouch! That is not normal at all.

If so a welder can probably do a quick fix and you can see how it holds. Not good GM quality.

I have a stock (2.4 N/A) manifold exhaust in my garage (I went SOLO)

I'm sure we could work out a deal that wouldn't cost you too much

if interested

send me a PM

Small Dealer · 07-03-2009, 09:44 PM

Quote:

Originally Posted by kwtoxman

Not good GM quality.

Sure that would be one way to jump.

Or you could wonder what outside vendor supplies the exhaust manifold to GM, or is it produced in house?

Or you could have inquired if in the almost three years they have been off the site, has the car ever been tapped in the rear? Hitting something with the front, as they have done, wouldn't do anything, but getting the exhaust system pushed forward in a rear end tap could cause something like this.

Or you could have inquired if they had any exhaust repairs performed on the car? Small possability that having something like the Cat Converter replaced could be a factor.

kwtoxman · 07-03-2009, 10:04 PM

Frankly, what I was pointing out was that thing wasn't normal GM quality for that part. IE something is not normal. SD has pointed out some possible sources. It's a start.

Swendor · 07-03-2009, 10:32 PM

Quote:

Originally Posted by zzzybil

gotta be replaced-

- a welder might tell yuh different ? i just don't see a patch holding...
between labor and PIA factor - the odds on a repeat performance

looks like an excuse to upgrade - and be done

you win today's contest ----> " things that make yuh say " (((

))) dam

76k miles - no mods ???.

Yeah, I said damn. I took off the heat shield expecting to tighten the bolts from the info I got from researching the forums. Then I saw the crack...

No mods, happy with it as is. But I must admit after researching this problem it's more of a possibility.

Swendor · 07-03-2009, 10:34 PM

Quote:

Originally Posted by Small Dealer

Sure that would be one way to jump.

Or you could wonder what outside vendor supplies the exhaust manifold to GM, or is it produced in house?

Or you could have inquired if in the almost three years they have been off the site, has the car ever been tapped in the rear? Hitting something with the front, as they have done, wouldn't do anything, but getting the exhaust system pushed forward in a rear end tap could cause something like this.

Or you could have inquired if they had any exhaust repairs performed on the car? Small possability that having something like the Cat Converter replaced could be a factor.

No mods, no rear end taps

zzzybil · 07-03-2009, 10:35 PM

Quote:

Originally Posted by Swendor

Thanks guys. I've seen some PERMATEX® Hi Temp. Metal Repair Compound which is specified for manifolds and supposed to be good for 2000 degrees. Could I use this as a temporary fix until I get a replacement? Are there any adverse effects that could come from letting it go too long besides the noise?

sounds like a good idea- temporary anyways - just be careful it doesn't drip/run/spill into and foul up that sensor - my neighbor swears by jbweld..

....... can't say i've ever had luck with it

the close proximity of the hole to the sensor would have me nervous about gooping it up - the sensor (inadvertently ) even the fumes while it cured -might be caustic - don't know what the goop is made of
i'd take the sensor out to be safe - during the repair- eliminate that risk of gettin goop on it

the hole is soooooo close to your sensor -
to guess the reading might be a lil skewed maybe maybe not ( causing it to message the ecm to call for inacurate richer or leaner fuel trims ) i always guess backasswards - so i won't guess...... but there's a hole next to a sensor sooooooooo murphy's law states -

final answer i think thats a stretch -
its just going to make noise - and blow any patch - rite back atcha

- maybe you can tell - maybe not - besides for the noise any change ? if its effecting performance

if you don't upgrade - i forgot about all the oem that are prolly gathering dust !...rite here on the forum......

druid

ready wit the hookup !!- gotta love this forum

zzzybil · 07-03-2009, 11:08 PM

Quote:

Originally Posted by Small Dealer

Sure that would be one way to jump.

Or you could wonder what outside vendor supplies the exhaust manifold to GM, or is it produced in house?

Or you could have inquired if in the almost three years they have been off the site, has the car ever been tapped in the rear? Hitting something with the front, as they have done, wouldn't do anything, but getting the exhaust system pushed forward in a rear end tap could cause something like this.

Or you could have inquired if they had any exhaust repairs performed on the car? Small possability that having something like the Cat Converter replaced could be a factor.

that woulda been a hellava tap !

tap- nope
exhaust repairs - nope

even if gm has an outside vendor supplying the exhaust manifold ( do they ? ).......

thats small consolation - and zero relief .......still reflects on the gm product......imo

yep blaming it on a cat ?? is pretty remote - we did just get a letter . is there another on manifolds comming ?

on "bad cats" - does that make him eligible for a new manifold if he can find an issue with his cat too........ lol...blame it on that.. now we gettin someplace !
humming the "alcohol song " blame it on the ca cacaca cat

just messin witcha SD....

.... never heard you sound like a (((( dealer )))...before

how bout a hi tech answer on if the hole next to the sensor can contribute to any other issues

Swendor · 07-04-2009, 10:59 AM

Originally Posted by zzzybil

Quote:

on "bad cats" - does that make him eligible for a new manifold if he can find an issue with his cat too........ lol...blame it on that.. now we gettin someplace !

You know, my cat did go bad back at 50K. It was replaced under warranty at a local dealership which has since closed. I wonder if that has anything to do with it. But what recourse do I have since the dealership is no longer there?

jwvess00 · 07-04-2009, 12:08 PM

Hi there!

Welding cast iron isn't the easiest thing to do. There are places that could fix it, though it won't be cheap. The offer for a used one seems like a great way to go to me, if a header isn't in your plans.

I've used some epoxy patches on manifolds before, and they work okay but they're not a permanent fix.

Small Dealer · 07-04-2009, 09:39 PM

Quote:

Originally Posted by Small Dealer

Or you could have inquired if they had any exhaust repairs performed on the car? Small possability that having something like the Cat Converter replaced could be a factor.

Quote:

Originally Posted by zzzybil

exhaust repairs - nope

yep blaming it on a cat ?? is pretty remote

Didn't "blame" the cat, was just placing an exhuast repair in play for some to think about. That and when you know the cat has been replaced at 48K on this car, and it is bolted to the manifold, it is an easier jump.

Quote:

Originally Posted by Swendor

You know, my cat did go bad back at 50K.

I did know.

Quote:

Originally Posted by Swendor

It was replaced under warranty at a local dealership which has since closed. I wonder if that has anything to do with it. But what recourse do I have since the dealership is no longer there?

Give it a shot. Nothing to loose. You need a new manifold anyways.

Would start with Pontiac Customer Assistance. Give it the "strange thing has happened..... Warranty work was performed in that area...... Think the failure may be related.......". See if you can lead them to helping out and recommending another local dealership. When you get to the dealership keep them on the track that Customer Assistance put you there and it may be releated to the other dealership.