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Porsche » 944 » 1990 Porsche 944 » Car Problems

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1990 Porsche 944 Problems

Driveshaft Bearings May Become Noisy

for the Porsche 944

The driveshaft bearings on higher mileage vehicles may become noisy.

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Erratic Interior Temperature Due to Broken Link at Servo Motor

for the Porsche 944

Due to a broken plastic link at the servo motor for the heater control flap, the interior temperature can become wildly erratic.

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HVAC Fan Operates On High Speed Only Due to Failed Resisor Pack

for the Porsche 944

Due to a failed resistor pack, the HVAC fan may only operate on the high speed setting.

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Suspension components require regular inspection

for the Porsche 944

Suspension components (including control arms, boots, and ball joints) are critical and require regular inspection.

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Inspect cooling system frequently to prevent small leaks at reservoir

for the Porsche 944

The cooling system must be inspected regularly, as small leaks can develop at the reservoir. The heater valve and fan operation should also be inspected.

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Timing belt damage due to oil leaks

for the Porsche 944

Engine oil leaks at the cam housing, balance shaft, cam shaft, and oil pump should be repaired quickly. The timing belt can become oily and deteriorate if leaks are not repaired.

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Low boost due to corrosion at throttle pisition sensor

for the Porsche 944

Corrosion/moisture at the throttle position sensor can cause performance issues relating to low boost.

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"No start" Caused By Failed Fuel Pump Relay

for the Porsche 944

Engine shut down or a "No Start" may be caused by cracks at the DME (fuel pump) relay solder joints. Repairing or replacing the failed relay should correct this concern.

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Engine misfire due to intake manifold air leak

for the Porsche 944

Air leaks at the manifold gaskets can cause engine misfire (especially at idle) or black smoke under load.

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Dirving and shifting problems due to flywheel wear may cause the hubs to fail

for the Porsche 944

The release arm for the throw out bearing can bind and cause problems with the clutch. Flywheel wear can cause driving and shifting problems and may cause the hubs to fail.

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Clutch problems may develop due to contaminated fluid

for the Porsche 944

for the system may be overlooked; the fluid should be replaced regularly during brake . If aging or contaminated is not replaced, there may be problems in the lines and actuating components, as well as clutch issues that are difficult to diagnose.

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Overfilled differential due to leaking automatic transmission

for the Porsche 944

Automatic transmissions can leak internally and cause the (ATF) to mix with the differential oil. An overfilled and/or a low fluid level in the ATF reservoir is symptomatic of this. If not repaired immediately, the transmission will fail; the pinion seals will also need replacement.

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Monitor warning lights and inspect brakes

for the Porsche 944

Pay close attention to warning lights and have the brakes inspected regularly—immediately address any brake problems. Hard driving habits will cause excessive brake pad and rotor wear.

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