Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ENGINE AND ENGINE COOLING - COOLING SYSTEM
203610/01/1999610497This service bulletin is to explain the correct use and maintenance of extended-life coolants (elc) and to identify freightliner-approved coolant types. *tt05/03/2000
091305/01/1999608386Information on cleaning the charge air cooler. *tt11/24/1999
549304/01/1999606000Subject regarding ddec iv and optimized idle problems. *tt08/05/1999
ENGINE AND ENGINE COOLING - COOLING SYSTEM - FAN
SB-20-6410/01/201010036591Freightliner: fan clutch nuts. always use new nyloc nuts when installing the engine cooling fan on a borg warner (kysor) fan clutch. failure may lead to a loose or lost fan, and damage to the fan clutch or truck. *pe04/04/2011
98203107/01/199820-31602385General information on horton fan clutches with 32-inch fans. this sb replaces previous version dated july 1992. *yc11/03/1998
ENGINE AND ENGINE COOLING - ENGINE
203801/01/2000610518General information regarding the cummins n14 engines using texaco extended life coolant. *tt05/04/2000
98548509/01/1998603284General information on optimized idle low voltage run time. *yc02/16/1999
9830708/01/1998602436Some vehicles are experiencing an inoperative engine braken on vehicles equipped with ddec iii engines. this bulletin replaces the previous version dated august 1997. *yc11/04/1998
ENGINE AND ENGINE COOLING - ENGINE - GASOLINE
014404/01/20020144635296The purpose of this bulletin is to make the engine manufacturers' recommended oil fill capacity information for the common engine models more readily available to the field. *tt10/21/2002
015703/01/2002631380Information regarding caterpillar engine drive belt noise. *yh05/23/2002
837902/01/2000610528Information introducing changes to the water regulating valve. *tt05/05/2000
014807/01/1998609780The mounting clamps on some vertically mounted bencon lil resrvoirs cannot be adequately tightned. this could cause the reservoir to slide down inthe clamp, causing damage to the sight-tube fitting. yd04/10/2000
30703/01/1999307606363Experiencing an inoperative engine brake with ddec engines. *tt08/17/1999
010504/01/1999606116Information regarding caterpillar adem iii engines operating with eaton auto shift transmissions. *tt08/10/1999
98203312/01/1998603175General information regarding cummins n14 drive belt misalignment. *yc02/05/1999
ENGINE AND ENGINE COOLING - ENGINE - GASOLINE - BELTS AND ASSOCIATED PULLEYS
015704/01/20020157635298Some caterpillar engine accessory drive belts may exhibit a squealing noise that is associated with belt slippage. *tt10/21/2002
838510/01/2000619076Information on a redesigned a/c belt available for vehicles with a cummins m11 or ism engine and a poly-vee (serpentine) a/c belt drive. *tt05/14/2001
836711/01/1999610491This service bulletin applies to vehicles built before november 6, 1998 that were equipped with caterpillar c10 or c12 engines. the automatic tensioner for the refrigerant compressor belt drive on these vehicles may wear prematurely.05/03/2000
98836710/01/1998602720General information on tensioner wear. *yc01/07/1999
98014911/01/1998602717Some vehicles equipped with a caterpillar 3406e engine and a serpentine - ribbed belt drive for the fan and alternator are showing signs of premature drive belt wearing and failure. *yc01/07/1999
98203302/01/1998601161Checking and adjustment on pulley alignment. *yc07/06/1998
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - MANIFOLD/HEADER/MUFFLER/TAIL PIPE
491907/01/19994919608385Information on the new supplier for exhaust flex tubing. this service bulletin replaces the previous version dated april 1999. *tt11/24/1999
491904/01/1999606133Information regarding the new supplier for exhaust flex tubing. *tt08/10/1999