Subject: Part – Load Surging                             Models: 911 Turbo ALL

Bulletin Number: 77 – 03

Engine surging at part throttle under load (similar to ignition misfiring) can be caused by a leaking intake manifold gasket.

• Replace gasket or gaskets as required (see illustration)

Part required:

Gasket                  Part Number 930.110.197.01

Note:

There are 12 identical gaskets – 6 between intake manifold and intermediate flanges; 6 between intermediate flanges and heads. Any of these, if leaking, could cause erratic engine performance.

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