Safari Van M V6-262 4.3L (1985)
NOTICE:
The tachometer terminal must never be allowed to touch ground, because
damage to the module inside the distributor and/or ignition can result.
4.
Reduce cold idle speed to 1600 rpm by adjusting the fast idle screw. Refer to tune up label for procedure.
5.
Remove tachometer and reinstall engine cover and dash extension.
6.
On a clean dry surface, next to the existing tune up label located on the fan shroud, place label P/N 10066488.
PARTS INFORMATION
Labels to show fast idle speed specification change have been shipped directly to all dealers who originally ordered 1985 M vans. If additional labels are
required please call: Adistra Corporation, (313) 425-2600, Extension 396.
PART NUMBER DESCRIPTION
QUANTITY
10066488
Label
1
The label is not to be ordered from General Motors Service Parts Operation (GMSPO).
WARRANTY INFORMATION
Dealers should submit a warranty claim on each vehicle completed.
LABOR
OPERATION
TIME
*NET
NUMBER
DESCRIPTION ALLOWANCE AMOUNT
T7395
Adjust idle
.6
.30
speed and install label
T7425
Reimburse-
ment for
previous
repairs
*
The 30 cents identified in the net amount column represents 30% of dealer net when parts are furnished no charge by GMC Truck Division.
Dear GMC Truck Owner:
This letter has been sent to inform you of the following special policy that applies to your vehicle.
REASON FOR THIS SPECIAL POLICY
Some owners of 1985 GMC Safari vans equipped with 4.3L V-6 engines and automatic transmissions may experience a condition immediately after cold
vehicle startup where, by applying the brake pedal, they are unable to completely stop the rear wheels from turning on icy surfaces.
Variables such as rear axle ratios and higher engine rpm while the vehicle is in the cold idle mode can result in increased torque to the rear wheels. These
variables, in conjunction with a lightly loaded rear axle, can increase the pedal effort required to stop the rear wheels from spinning on ice when the
vehicle is placed in gear. This condition can be effectively addressed by reducing the cold idle speed of the engine.
SPECLAL POLICY COVERAGE
Because this condition could occur beyond the warranty period and is affected by climatic conditions in various locations in the United States, we are
writing this lefter to advise you that GMC Truck Division will repair your vehicle at no charge for a period of five years, regardless of mileage from the
date the vehicle was originally placed in service. This repair will consist of reducing the cold idle speed of the engine.
WHAT YOU SHOULD DO
In the event your Safari van encounters a condition as outlined above, contact your GMC Truck dealer. Instructions have been furnished to GMC Truck
dealers for repairing this condition and handling of this special policy.
If you have previously encountered this condition and paid for all or part of the repair, you should contact your GMC Truck dealer who will advise you
regarding reimbursement. It will be necessary to present paid receipts or invoices to verify any expenditures for such repairs, so you should have them
available when you contact your dealer.
We suggest you retain this letter with your Owner's Manual, Maintenance Guide, and Warranty Folder.
