Tests to measure iron levels include: 1  Serum iron. 2  This test measures the amount of iron in your blood. 3  The level of iron in your blood may be normal even if the total amount of iron in your body is low. 4  For this reason, other iron tests also are done. 5  Serum ferritin.
one symptom of a cracked manifold will be a visible crack that you can see on the manifold s surface to look for a crack look closely at the manifold particularly where it bolts up to the motor and where the most heat will be
Exhaust leak symptoms will vary by where the leak is located. Also, the problems they can cause will vary by where the leak is located. A leak at the manifold between the manifold and the head will normally sound like a loud ticking sound. This kind of leak can create excess heat in the exhaust port, which can burn the exhaust valve-which will be an expensive repair. A leak somewhere between the exhaust flange and the muffler will normally sound like a throaty rumble. This type of leak is normally fairly easy and inexpensive to repair.