Dodge Ram 2001 — technical service bulletin
Bulletin 0004 · NHTSA communication 610648 · issued Feb 3, 2000
Technical service bulletin
communication type
Engine and Engine Cooling
component
2001
model years
1
vehicle entries
Official summary
Advance service information regarding the addition of the leak detection pump system on all federal and california vehicles equipped with gasoline engines. Other changes include the introduction of the high output 5.9l cummins diesel engine package and changes to the electrical system and the heater and a/c system. *tt
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.