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
1 Vacuum leak, again like above. 2  Fuel delivery issues, like clogged fuel filter or weak fuel pump will sometimes cause an engine to chug and stall at low speeds.  Base engine issues, like cam/crank timing can really cause erratic behavior at all engine speeds, but again may be more noticeable at a stop.