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Newest reported 1994 Porsche 928 problems

Worn Thrust Bearing in Transmission Due to Driveshaft/Flex plate Alignment

for the Porsche 928

An alignment issue at the driveshaft/flex plate interface can cause a worn engine thrust bearing in the automatic transmission. Revised parts and assembly procedures are available.

5 Reports

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Air leaks from intake manifold

for the Porsche 928

Intake air leaks at the manifold and elsewhere are common.

5 Reports

Me Too

AC System Erratic Due to Fautly Sensors, Actuators, or Control Assembly

for the Porsche 928

The AC climate control system can be erratic. Diagnoses of the interior sensors, actuators, and control assembly will be necessary to determine the cause of any AC problems.

5 Reports

Me Too

Clutch noise and shifting problems due to wear issues

for the Porsche 928

Mechanical wear in the clutch and clutch release mechanism can cause shifting engagement and noise issues.

5 Reports

Me Too

Suspension components require regular inspection

for the Porsche 928

Suspension components (including ball joints) are critical and require regular inspection.

5 Reports

Me Too

Inspect CV Boots and Joints at Each Service

for the Porsche 928

The constant velocity (CV) boots and CV joints should be inspected at each service.

5 Reports

Me Too

Deck lid and hood supports may fail

for the Porsche 928

The front hood and rear deck lid support struts may fail; replacement is required.

3 Reports

Me Too

Aged brake fluid causing problems

for the Porsche 928

Aged brake fluid can cause numerous problems and should be replaced regularly.

5 Reports

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Interior fan speed erratic due to faulty fan control resistor

for the Porsche 928

When changing speeds at random or while going over bumps, the interior fan speed can be erratic. A replacement fan control resistor is required.

5 Reports

Me Too

Faulty igntion system causing misfire detection system to reduce engine power

for the Porsche 928

The ignition system must be maintained—distributor caps, rotors, and cables require attention. The misfire detection system can cause the engine to shut down by half. The root cause of the problem must be ascertained before repair.

5 Reports

Me Too