hi? I have a 2000 suburban 2500. I have been hearing this noise for a long time. so I decided to check the vehicle. I found a small gap between engine block and exhaust manifold on the front of the engine. two bolts are broken. how this happen I don't know.
how can I remove the exhaust manifold to replace gasket and also remove the broken bolts in the engine head/block
if I don't fix that gap will it hurt the engine or I have to fix it right away