Engine - Poor Driveability Conditions
90olds03SUBJECT
DRIVEABILITY CORRECTIONS 1982 CUTLASS CIERA MODELS EQUIPPED WITH 3.OL V-6 FEDERAL ENGINE (VIN CODE E)
NUMBER: 82-T-14
DATE: August 4, 1982
A newly calibrated PROM and EGR valve has been released for production and service on 1982 Cutlass Ciera models equipped with Federal 3.OL engines. These parts are to be used for dealer correction if any one of or combination of the conditions listed below exist after it has been determined that affected systems are within specification and are functioning normally.
CONDITION CORRECTION
Chuggle at 40-50 MPH PROM Only (TCC locks at 50 MPH)
Tip-in Hesitation EGR Only
Chuggle at 40-60 MPH PROM & EGR (EGR reduces lighter than
road load chuggle)
Before a decision is made to install a PROM and EGR valve, the car should be roadtested, if possible, for the owner described conditions and vehicle systems checked to determine if adjustments are within specifications.
Unless all areas listed on the checklist are correct, a PROM and EGR valve will not be effective for the purpose intended. Use the following checklist for assistance when necessary.
Any time all of the three (3) conditions are encountered and the checklists did not assist in curing the condition, use the PROM and EGR, for all three (3) conditions.
CHUGGLE CHECK LIST
^ Park-Neutral Back Up Light Switch Adjustment
^ Base Ignition Timing and Total Advance
^ Spark Plugs and Plug Wires
^ HEI Operation At Problem Speeds
^ Speedometer Needle For Fluctuation (Sticking or Kinked Cable and/or Speedometer Head will cause Vehicle Speed Sensor (VSS) to Engage - Disengage TCC)
^ Evaporative Emission Control System (EECS)
- Purge Solenoid Operation
- Hoses and Correct Hose Connections
- Canister Vent Valve Operation
- Coolant Sensor and/or Circuit - System going to open loop - closed loop. Will cause chuggle sensation.
HESITATION CHECK LIST
^ EGR Valve System Operation
^ Accelerator Pump System Operation (Pumpshot)
^ Vacuum Hoses, Fittings and Connections
^ Ignition Timing
^ Carburetor Float Level - 5/16" + 2/32"
^ Computer Command Control Wiring Proximity To High Voltage Wiring
^ EFE System Operation
^ Thermac Air Cleaner System Operation
COLD DRIVEABILITY HESITATION CHECK LIST
^ Accelerator Pump System Operation (Pumpshot)
^ Vacuum Breaks
^ Choke
^ Carburetor Float Level Using External Gage to 5/16" +/- 2/32"
^ EGR Valve Operation
^ Park-Neutral Back Up Light Switch Adjustment
^ Thermac Air Cleaner (T. A. C.) Operation Including Stove Pipe To Air Cleaner
^ HEI Operation
^ Evaporative Emission Control System (EECS)
- Purge Solenoid Operation
- Hoses and Hose Connections
- Canister Vent Valve Operation
^ Base Timing and Electronic Spark Timing (EST)
^ Early Fuel Evaporation (EFE) System
^ Mixture Control Solenoid Checks
- Mixture Control Solenoid Plunger Travel of 4/32"
- Dwell Meter Reading of 30~ - 45~ at 3000 rpm in Park (this setting, made by adjusting the rich mixture screw, will affect solenoid travel in most instances)
- Dwell Readings of 30~ - 35~ at Idle in Drive (this setting made by adjusting idle mixture screws)
- Spark Plugs and Plug Wires
PARTS INFORMATION
Obtain the required part(s) from your normal GM Parts Division Warehouse:
ORIGINAL EQUIPMENT NO.
^ PROM No. 1225448 16029014
^ EGR Valve No. 17079563
WARRANTY INFORMATION
OPERATION NO. TIME FAILED P/N TROUBLE CODE
*Replace EGR valve only J 6270 .4 17079563 92
*Replace PROM only T 0110 .3 1225448 92
*Replace PROM and EGR valve T 0111 .6 1225448 92
*System Performance Check not necessary.