Volvo S40 2001 — technical service bulletin
Bulletin 250036 · NHTSA communication 10005197 · issued Jan 1, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2001
model years
2
vehicle entries
Official summary
Long crank on start could be caused by exhaust gasses remaining in the intake manifold from the previous engine shut down. Installing a vent valve will allow the intake manifold to purge the gasses into the exhaust system. Extra control valve installation instructions included. *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.