Intake manifold leak?

[meissen]

Is this common in 4th gens? I don't have one, but I was reading an auction and saw it said something about how 4th gens have intake manifold leak problems...

[devenomer]

nope never had that problem!

[97rs4life]

nope, never heard of that problem with 4th gen. I have only heard about the rear main seal leak problem with our cars

[archemedes]

yes it was a recall all gm small block have the problem you replace the junk rubber seals with rtv

[99W68Firebird]

where is the rear main seal leak?

[archemedes]

the one piece leak proof seal that was installed wrong at the factory

[JoeliusZ28]

its a common problem, but i cant say i have it.

[White_Phoenix]

Yes they are a common thing many times caused by a solid EGR line...part reason why people block it off becides getting rid of emmisions...other then that they are common. if you ever suspect having on spray something aerosol around the area and if you hear then engine kida rev up then you have a leak....

[archemedes]

Yes they are a common thing many times caused by a solid EGR line...part reason why people block it off becides getting rid of emmisions...other then that they are common. if you ever suspect having on spray something aerosol around the area and if you hear then engine kida rev up then you have a leak....

has nothing to do with egr since teh non egr engines still had the issue

[White_Phoenix]

Yes they are a common thing many times caused by a solid EGR line...part reason why people block it off becides getting rid of emmisions...other then that they are common. if you ever suspect having on spray something aerosol around the area and if you hear then engine kida rev up then you have a leak....

has nothing to do with egr since teh non egr engines still had the issue

the solid EGR tubes would flex from cooling/heating....causing it to move a minimal up and down...eventually happening enough to cause a leak...this is why many people that still have to worry about emmisions change over from a hard EGR line to the flexible one offered on later models

[archemedes]

but there was an actual tsb and it was on every small block that was the actual cause of teh problem. if they had used rtv instead of the rubber gaskets it would have been fine, teh egr tubes cracked instead (which was a whole nother issue)

[White_Phoenix]

i do agree with the RTV vs. Rubber

[archemedes]

that was the real answer to this question that was the only thing I was trying to point out