928 S4 V8-4957cc 5.0L (1987)
a)
120 TU for vehicles with manual transmission and vehicles with automatic transmission up to VIN WP0JB092_GS861000.
b)
190 TU for vehicles with automatic transmission from VIN WP0JB092_GS861001.
Please see and refer to administrative procedure.
Letter to Owners
(CUSTOMER NOTIFICATION)
Subject:
Recall Campaign 1985/86 Model Porsche 928S 1987 Model Porsche 928 S4 Replacement of Heat Shield for Catalytic Converter
Dear Porsche Owner:
This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.
Porsche AG has determined that a defect exists with the heat shield above the catalytic converter on 1985-1987 928 models. The heat shield is
inadequate under certain circumstances involving engine malfunction. The problem arises where, due to, among other reasons, improper maintenance or
repair, such as improperly secured ignition wires, the engine misfires resulting in overheating of the catalytic converter. If this condition is not detected,
materials in the vicinity of the catalytic converter including the lines for the automatic transmission fluid on vehicles so equipped could ignite and cause
an underbody fire due to the insufficiency of the heat shield.
Therefore, you should arrange for an appointment with your Porsche dealer, as soon as possible, to have the original heat shield replaced with the larger
improved heat shield. On vehicles equipped with automatic transmission, a mounting bracket will be replaced and heat resistant sleeves installed on the
transmission fluid lines in those models where the lines pass in the drive train tunnel. The ignition wiring will be checked to ensure that it was properly
secured.
The necessary parts to perform this Recall should be available at your Porsche dealer. The estimated time to perform this repair is approximately one and
one half (1-1/2) to two (2) hours depending on the vehicle model year and transmission version. However, your Porsche may have to be left longer at
your Porsche dealership since the exhaust system has to cool down before work can commence. This repair will, of course, be free of charge to you.
If your Porsche dealer fails, or is unable to perform this repair within a reasonable period of time, you may call or write to:
Porsche Cars North America, Inc.
Administrator
100 West Liberty Street
National Highway Traffic Safety Administration
P.O. Box 30911
OR
U.S. Department of Transportation
Reno, Nevada 89520-3911
Washington, D.C. 20590
Attn: Customer Assistance
Telephone: (702) 348-3154
We regret any inconvenience this Recall may cause; nevertheless, we are confident you understand our interest in your safety. Therefore, we urge you to
make prompt arrangements so that the necessary work may be performed without delay.
With Manual Transmission
WORK PROCEDURE
K01 Recall
Work Procedure for Vehicles with Manual Transmission
Model year 1985 all
Model year 1986 all
Model year 1987 all
And Vehicles with Automatic Transmission
Model year 1985 all Model year 1986 through VIN 92_GS861000
1)
Disconnect oxygen sensor wire plug located behind passenger side foot support on Central Electric Board. Push wire plug and grommet down
through the floor board.
2)
Lift car on hoist.
3)
Remove rear part of engine cover plate; and remove the small right front heat shield.