Dodge D350 1990 - Engine Cranking Speed too Slow

Diagnosing Electrical Malfunctions
Page 8-8
Electrical System
DODGE Turbo Diesel
^0) Engine Cranking Speed Too Slow
Make sure the wiring connections are clean, tight and not
damaged.
Check the battery voltage.
Bar the engine in the direction of engine rotation to make sure
the engine is free and does not have an internal malfunction.
9.6 to 12V
0 to 9.6
if the engine is free, check the voltage at the starter during
cranking, if the voltage drops more than 2.4 volts, check that all
connections are tight and the connections are ok.
if the cables are correct and the voltage drop exceeds the limit,
check the battery for a bad cell. If all cells are ok, replace the
starter.