manifold bolts - what years are trouble?

[97trophy]

My son just bought a 09 Avy. Seller said they heard manifold bolts can be a problem, was not sure what years are affected but recommended we replaced the bolts. Currently all the bolts look ok.

1/ what years are affected? or is it all Chevy V8s?

2/ should we even bother to replace something that is currently ok?

3/ is there a recommend part #1 for the replacements?

I found these on Amazon , made from stainless steel should be stronger than OEM

All thoughts or comments welcome, cheers all.

 

[EXT4ME]

I had several exhaust manifold bolts break on both sides of my 2004 EXT.

I had all of the old bolts replaced along with new gaskets.

I do not think this is a problem with any certain years.

 

[ygmn]

Mine are fine from 2002

 

[EXT4ME]

And all of the exhaust manifold bolts appear to be fine on my 2003 Avalanche.

Both of my trucks have around 1/4 million miles on them each.

I'm sure it's just the luck of the draw.

 

[BainMan]

My 2010 popped two manifold bolts.. I took the bandaid approach and used the Dorman clamp which bolts onto the block and presses the manifold down. Cured my cold startup exhaust leak/tick since August 2021. I know it wasn't the proper fix but for $25 I took a shot and it has worked out great.

https://www.amazon.com/gp/product/B00GHT9L4O/

I agree that manifold bolts can break on any year, and is not a reason to avoid certain model years.

 

[2003VAAV]

"If it ain't broke, don't fix it."

 

[BioMass]

It is common on all ford and chevy v8 engines.