Subject: Inoperative Speedometer Models: 911 Carrera
Bulletin Number: 87 – 07
911 Carrera Model Year 1987
(Type 950 Transmission)
An inoperative speedometer or no speed reading to approximately 30 mph could be caused by a malfunctioning pulse sender.
An improved pulse sender is installed as of production date November 1986.
When replacing pulse sender, both sender and spring lock should be replaced.
911.606.210.00 Pulse Sender
911.606.219.00 Spring Lock
The pulse sender must be installed in the differential cover clean and absolutely straight in the cover, otherwise incorrect speedometer display could result.
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