DRIVEABILITY SUMMARY WARM AMBIENTS

Model and Year: 1982/87 PASSENGER CARS WITH 5.OL LG4 (VIN H) ENGINE OR 5.OL L69 (VIN G) ENGINE

Some vehicles may exhibit driveability symptoms related to the combination of high ambients, hot soaks and relatively high REED VAPOR PRESSURE (RVP) fuels.

Several bulletins have been issued on this topic and this bulletin is intended as a convenient easy to use summary. As usual, normal service procedures should be utilized to assure that the vehicle is set to specifications before proceeding to use the service procedures recommended on the reverse of this bulletin.

WARM AMBIENT DRIVEABILITY SUMMARY

1. Surge After Hot Soak Which Is Eliminated When The EVAP Canister Is Disconnected. *Use only on applications listed on the appropriate reference bulletin. This delay harness should not be used on 1987 and new model vehicles that are equipped with closed loop purge systems.

SERVICE VEHICLE REFERENCE PROCEDURE LINE BULLETIN #

* Canister Caprice 86-238 Purge Delay Camaro Harness Asm. Monte Carlo El Camino

2. Surge After Hot Soak Which Is Not Eliminated When The EVAP Canister Is Disconnected.

Free Flow Caprice 86-222 Carburetor Camaro Main Metering Monte Carlo Jets El Camino

3. Surge After Hot soak Which Is Not Eliminated When The EVAP Canister Is Disconnected And Free Flow Carb Main Metering Jets Have Been Installed.

Carb. Blower Camaro 87-131 Fan Kit

4. Deep Sag At Wide Open Throttle (WOT) Normally Occurring At High RPM/Or Near Shift Points On Automatics.

In Tank Camaro 84-174 Electric Fuel Pump Kit

5. Tip In Hesitation On A Warm Engine.

Accelerator Camaro 87-279-6E Pump Check Ball Spring Kit

Use Labor Operations and Labor Times Published In Bulletins Referenced.

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.