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Problems for specific Porsche 928 years:

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Repairpal verified Porsche 928 problems

 

Verified 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.

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Verified 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.

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Verified for the Porsche 928

Intake air leaks at the manifold and elsewhere are common.

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Verified 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.

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Verified for the Porsche 928

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

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

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

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The front hood and rear deck lid support struts may fail; replacement is required.
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Aged brake fluid can cause numerous problems and should be replaced regularly.

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

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Verified for the Porsche 928

If engine misfiring, rough running, or fuel consumption issues are not resolved quickly, the catalytic converter can overheat and fail.

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Verified for the Porsche 928
Mass air flow meters can fail unexpectedly.
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Verified for the Porsche 928
A failing ECM or a fuel pump issue can cause a "No Start" condition.
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Verified for the Porsche 928
Aged and deteriorated connectors can cause common wiring issues; repair requires care and vehicle-specific information.
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Verified for the Porsche 928
Erratic switches and controls can cause electrical problems.
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