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Service bulletin 1804

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 id10010696
Published by NHTSA2004-12-06
Manufacturer's number1804
Manufacturer's date2004-10-20
NHTSA componentEQUIPMENT:APPLIANCE:AIR CONDITIONER

NHTSA's summary

MODEL 387 HVAC SYSTEM MAINTENANCE. PETERBILT. *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

Equipment and accessories, Heating and air conditioning

Vehicles listed
PETERBILT 3871998, 1999, 2000, 2001, 2002, 2003, 2004, 2005

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

Recalls for the same vehicles and component
06V2510002006-07-13. EQUIPMENT

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
02-1602021-03-10. Service bulletin. Information Only – Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
32-0162020-04-03. Service bulletin. Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
34-0772019-05-13. Service bulletin. Information Only: Proper instructions for closure of power distribution box cover to prevent corrosion.
182004-07-08. Service bulletin. HVAC CONDENSER LOW PRESSURE LINE INTERFERENCE. MODEL 387 VEHICLES BUILT JANUARY 1, 2004 THROUGH APRIL 1, 2004. *TT
182001-02-06. Service bulletin. SOME VEHICLES MAY EXHIBIT HOT AIR WHEN THE BLEND AIR ACTUATOR IN THE SLEEPER HVAC UNIT REMAINS IN THE FULL HOT POSITION. *TT