For 1990-2009 cars

# HOT WEATHER CHUGGLE HOT SURGE 3.8L V6

SHOULD YOU ENCOUNTER COMMENTS OF CHUGGLE (ALSO CALLED SURGE) AT 40 TO 45 MPH AND/OR HOT SOAK SURGE DURING PERIODS OF HOT WEATHER, ALL AREAS WHICH COULD AFFECT THESE CONDITIONS SHOULD BE CHECKED FOR PROPER OPERATION. REFER TO THE ATTACHED LISTS OF ITEMS. IF THE CONDITION STILL EXISTS AFTER IT IS DETERMINED ADJUSTMENTS ARE WITHIN SPECIFICATION AND SYSTEMS ARE FUNCTIONING NORMALLY, THE APPLICABLE SERVICE PROM LISTED BELOW SHOULD BE INSTALLED. ZONE AUTHORIZATION IS REQUIRED PRIOR TO USAGE OF THE PROM. PARTS INFORMATION OBTAIN THE PROM FOR APPLICABLE MODEL FROM YOUR NORMAL GM PARTS DIVISION WAREHOUSE. MODEL 1981 CENTURYS & REGALS EQUIPPED WITH FEDERAL 3.8L ENGINE PROM PART NUMBER 1225446 MODEL 1981 LESABRE EQUIPPED WITH 3.8L FEDERAL ENGINE PROM PART NUMBER 1225447

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.