1990 Porsche 928 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1990 Porsche 928

1990 Porsche 928 Problems

Mass air flow (MAF) meters may fail
Mass air flow meters can fail unexpectedly.
"No start" due to fuel pump or ECM failure
A failing ECM or a fuel pump issue can cause a "No Start" condition.
Monitor warning lights and inspect brakes
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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1990 Porsche 928 Questions

electrical system does not turned off completely (1 answer)

I have 1989 Porshe 928 s4. Recently when the car is turn off all instrument lights will turn off, but there is a low glow of light in the instrument dash quite visible in the dark. If left for a day or two it will completely drain the battery. Anyone have an answere!

Differential noises (1 answer)

The differential starts to act up after some normal driving. I get grinding noises especially when turning at low speeds. Have tried changing the fluid including using additives etc... it seems like there is damage in there. Has anyone experienced this and know what it might be? Is it worth r...

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1990 Porsche 928 Recalls

Recall 90V117000
PLASTIC FUEL GAUGE MOUNTING NUT MAY CRACK AND ALLOW FUEL TO LEAK FROM THE FUEL TANK.

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1990 Porsche 928 Reviews

A German "muscle car", of sorts. Have had 2, and they are unbelievable fun.

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