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Service bulletin S01EK

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id620092
Published by NHTSA2001-07-12
Manufacturer's numberS01EK
Manufacturer's date2001-02-26
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN

NHTSA's summary

SERVICE BULLETIN REGARDING MODIFICATION OF THE ELECTRICAL CIRCUIT ON THE HAYDEN HYDRAULIC COOLING FAN. THE HAYDEN HYDRAULIC COOLING FAN CIRCUIT MAY BECOME INOPERATIVE IN THE EVENT OF A BLOWN CIRCUIT PROTECTION FUSE. THE BLOWN FUSES WILL ALLOW THE HYDRAULIC OIL TEMPERATURES TO RISE ABOVE ACCEPTABLE LEVELS THAT COULD CAUSE PREMATURE FAILURE OF THE HYDRAULIC COOLING FAN PUMP SYSTEM. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Cooling fan, Cooling system

Vehicles listed
BLUE BIRD LTC 401999 to 2000
BLUE BIRD WANDERLODGE1999, 2000

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
S01EK2001-10-19. Service bulletin. SERVICE BULLETIN REGARDING MODIFICATION OF THE ELECTRICAL CIRCUIT ON THE HAYDEN HYDRAULIC COOLING FAN. *TT