Thread: Rear exhaust manifold

I replaced the rear exhaust manifold gasket and now have an exhaust leak and it's getting worse by the day. I made sure all the old gasket was off and used Cooper spay gasket when installing.I did notice the rear manifold wss slightly bowed prior to install..any help would be appreciated.

Manifold to head gasket, I have the felpro gasket now, when I put motor all back together a year ago I put felpro gasket in it always had a small leak not bad but this one is driving me crazy

Put a factory one in and call it a day

Could it be that the manifold is warped?

Are the stock manifold known for cracking our breaking??

no they're not

Alright thank you,I just picked up gm metal gasket hoping this takes care of my leak

Just got the rear manifold off and it has not 1 not 2 but 3 cracks in it!! Gonna weld it and put it back together!

That sucks. The rears aren't known for cracking. Thats a bummer

I went to salvage yard this weekend in Kansas city and found three grand prixs with cracks in rear manifold all in same spot,I did find a good one tho

My manifold off my 99 had a few hairline cracks. Not big, but noticed easily when looking at them

This is funny because I think theres a crack in my rear exhaust manifold now. Gonna check later and Dorman seems to make a replacement so I'm starting to wonder if this is actually a problem

This is funny because I think theres a crack in my rear exhaust manifold now. Gonna check later and Dorman seems to make a replacement so I'm starting to wonder if this is actually a problem

All the ones I've seen crack are on the passenger side of the rear manifold