Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 891 bulletins for PREVOST
SP13-304
Jan 18, 2013
060000 ENGINE AND ENGINE COOLING
On the vehicles affected by this bulletin, look at all the clamps and retighten as coolant leaks found around the coach.
WB-12-41
Jan 1, 2013
061000 ENGINE AND ENGINE COOLING:ENGINE
PREVOST: WARRANTY INFORMATION PROVIDED REGARDING AVAILABILITY OF AN AUXILIARY COOLANT TANK, WHEN MAIN COOLANT SURGE TANK FILLED WITH TOO MUCH COOLANT AND AUXILIARY COOLANT TANK PREVENTS SPILLAGE DUE TO EXPANSION. MODEL 2010-2013 H3-41, H
MI12-48
Dec 17, 2012
063200 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE
When performing the next periodic maintenance, check clearance between the 4-inch OD turbooutlet pipe (Prevost part number 052953) and a close support bracket. If evidence of rubbing isfound, i.e. scratched paint on the 4-inch OD turbo outl
SP12-924
Dec 5, 2012
162000 STRUCTURE:BODY
The splash guard mounting bolts may come loose in normal bus operation. Issues on production vehicles and on vehicles in service have been raised. On the splash guard - front of transmission add blue Loctite 680038 to bolts mounted on tag a
MI-12-48
Dec 1, 2012
061120 ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
PREVOST: IF RUBBING FOUND ON 4 INCH OD TURBO OUTLET PIPE, AFTER CLOSING SUPPORT BRACKET, THEN TO INCREASE CLEARANCE BETWEEN INVOLVED COMPONENTS, A MODIFICATION OF SUPPORT BRACKET MUST BE PERFORMED. NO MODEL OR MODEL YEARS LISTED. *
SP12-313
Nov 26, 2012
050000 PARKING BRAKE
On the vehicles affected by this bulletin, reinforced parking brake overrule tank supports are available.
WB12-31B
Nov 26, 2012
350000 EQUIPMENT
On the vehicles affected by this bulletin, a new and improved dipstick is available for installation.
WB12-35
Nov 22, 2012
063000 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
On the vehicles affected by this bulletin, the pre-heater exhaust tube may have been installed too close to the tag axle tire. Inspect tube position and make sure it has proper clearance with the tire. If not, move it away from the tire.
SP12-873
Nov 14, 2012
118000 ELECTRICAL SYSTEM:SOFTWARE
On the vehicles affected by this bulletin, update the multiplex programming at next service occasion, as there is a possibility that the tail lights turn on intermittently, and that a serie of codes appear in the dash.
SP12-306A
Nov 13, 2012
357100 EQUIPMENT:APPLIANCE:AIR CONDITIONER
On the vehicles affected by this bulletin, improvement of a Charge Air Cooler tube support is required. This is a ?Fix as Fail? bulletin, repair only the vehicles showing a cracked CAC tube.
SP12-319
Nov 13, 2012
110000 ELECTRICAL SYSTEM
On the vehicles affected by this bulletin, proceed to proactive replacement of Aluminum Condenser to Copper condenser
SP12-320
Nov 13, 2012
062200 ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
Proactiverly replace Lining fan clutch with KM fan cluch and shaft
SP12-321
Nov 13, 2012
062200 ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
On the vehicles affected by this bulletin, proactively replace the fan clutch support while replacing the fan clutch, Improvement will be made to the installation to improve clamping force
SP12-312
Nov 12, 2012
114000 ELECTRICAL SYSTEM:WIRING
On the vehicles affected by this bulletin, addition of a power relay to the inverter system wiring is required.
WB12-33
Nov 9, 2012
162310 STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS
On the vehicles affected by this bulletin, the wheelchair lift sliding door hinge bolts need to be tightened to ensure proper torque is applied. Procedure should be performed one bolt at a time to preserve door adjustment.
IS11015B
Nov 8, 2012
353000 EQUIPMENT:ELECTRICAL
This Instruction Sheet explains how to replace power relay p/n 561991 with improved power relay p/n 564218 and relay base p/n 564210
SP12-314
Nov 5, 2012
354000 EQUIPMENT:MECHANICAL
Replace edge moulding retainer clip to improve the reliability of this installation
SP12-316
Nov 5, 2012
162310 STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS
On the vehicles affected by this bulletin, the Bi?Part Door Studs must be replaced with latest version .
SP12-317
Nov 5, 2012
063110 ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)
On the vehicles affected by this bulletin, install a rock shield under Crank shaft to prevent belts from being thrown
SP12-318
Nov 5, 2012
220100 SEATS:BARRIERS
On the vehicles affected by this bulletin, install washers on front passengers modesty panel to increase gap between hand rail and panel
WB-12-31
Nov 1, 2012
350000 EQUIPMENT
PREVOST: INFORMATION BEING PROVIDED REGARDING THE REPLACEMENT OF DIPSTICK ON CERTAIN COACHES. MODELS 2009-2013 H3-45, H3-41, X3-45, XL11-45, X3-45. *PE
IS12047
Oct 31, 2012
161100 STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS
This instruction sheet explains how to install additional restraint for plastic shields over drive axle wheels. Use kit #3200407 to secure the shields to the bus structure.
MI1240
Oct 25, 2012
110000 ELECTRICAL SYSTEM
On the vehicles affected, the Delco 50DN alternator may generate a voltage variation when engine is shutting down. A new circuit and a time delay function can be added to the system to provide protection.
SP12-315
Oct 11, 2012
162300 STRUCTURE:BODY:DOOR
On the vehicles affected by this bulletin, perform the replacement of the existing WCL sliding door upper arm.
SP12-307
Oct 9, 2012
020000 SUSPENSION
On the vehicles affected by this bulletin, replace Drive axle radius rod bushings and caps to improve reliability.