Questions tagged [exhaust-manifold]

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12
votes
2answers
3k views

What is this yellow powder on my exhaust manifold?

I took off the heat shield from the exhaust manifold on my 2003 Nissan Primera while looking for an exhaust leak, and I noticed this yellowish poweder / dust on it: Any ideas what it is? EDIT ...
6
votes
3answers
331 views

Broken Exhaust Manifold Stud - Replacement part specs or part number

I was changing the Exhaust Manifold on an '09 Chevy Malibu. When tightening the bolt with the new one on, I twisted the whole bolt and stud off. So I have a couple issues. The broken stud is now left ...
6
votes
2answers
4k views

Broken Exhaust Manifold Stud - How to remove?

I was changing the Exhaust Manifold on an '09 Chevy Malibu. When tightening the bolt with the new one on, I twisted the whole bolt and stud off. So I have a couple issues. The broken stud is now left ...
3
votes
1answer
291 views

Could this be the source of an exhaust leak

I originnaly thought my exhaust leak in my 93' miata was from the exhaust manifold headers as there was some soot on the heat shield but after removing it and looking at the down pipe I see this piece ...