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1986 Porsche 944 Service and Repair Manual
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$29.99 USD
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Covers all 1986 944 trims — Base Coupe 2-Door, Turbo Coupe 2-Door ·
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$29.99
1986 Porsche 944 Service and Repair Manual
Regular price
$29.99 USD
Unit price
This manual is built around the 1986 Porsche 944 specifically, matched to this year's trims so the fuel system procedures, torque values, and diagnostic steps inside are the ones Porsche actually published for this car, not a generalized 944-era reference.
Trims
- Base Coupe 2-Door
- Turbo Coupe 2-Door
Known issues on the 1986 944. Two recalls are on federal record for this model year, and both involve the fuel delivery system. The first covers the high-pressure fuel line hose between the fuel rail and fuel pressure regulator: the hose material is prone to hardening, which can cause fuel leaks at the metal pipe fittings that ignite on the hot exhaust system and start an engine compartment fire. The second covers the return fuel hose running between the pressure regulator and fuel return pipe: its protective sleeve was shortened, leaving part of the hose exposed to engine bay heat, where it can kink, restrict, and be damaged, again leading to fuel leakage and a possible engine compartment fire. Owners have filed 6 complaints for the year, and no technical service bulletins are logged. The factory diagnostic and repair procedures behind the fuel rail, pressure regulator, and fuel hose routing are here.
Whether you're inspecting fuel line routing after a heat-cycle inspection or working through a full service interval, it keeps you on the OEM procedure and the correct specification for your specific 1986 944.
THE PROTECTIVE SLEEVE COVERING OF THE RETURN FUEL HOSE BETWEEN THE PRESSURE REGULATOR AND FUEL RETURN PIPE WAS SHORTENED LEAVING PART OF THE HOSE EXPOSED. IN SOME INSTANCES THIS PART OF THE HOSE
Remedy
NEW HOSE WILL BE INSTALLED WITH A LONGER PREFORMED SLEEVE DESIGNED TO PREVENT KINKING. THE REPL
Information for PIWIS tester update 42.300.050 & .052
Instructions on manufactures certificate for approved Porsche A40 engine oils
Instructions on manufacturers certificate for approved C20 engine oils
Instructions on manufactures certificate for approved Porsche C30 engine oils
Information for PIWIS tester update 42.300.035
Information for PIWIS tester update 42.300.040 & .041
Information for PIWIS tester update 42.300.030 - .032
Parts information for parts withdrawal involving the glass roof - 9J0877069EY and 9J0877069DY
Showing the 8 most recent of 72 technical service bulletins on file with NHTSA.
RUBBER FUEL HOSE FROM WHEEL WELL ROUTED OVER EXHAUST HEADER TO FUEL RAIL ATTACHED TO CAM TOWER STARTED TO LEAK ON ENGINE AND FIRE STARTED. I WAS RIGHT THERE AND CAUGHT IT BEFORE THE FIRE GOT TOO BIG.
NO SUMMARY
VEHICLE CAME IN FOR SMOG TEST AND FOUND FUEL LINE DRIPPING FUEL AT FUEL PRESSURE REGULATOR SIDE OF LINE. CHECKED FOR RECALLS AND FOUND THAT THERE IS A RECALL FOR REPLACEMENT OF THE FUEL LINE FOR THE E
THE SPEED CONTROL UNIT WILL RANDOMLY PICK NEW SPEEDS AT IRREGULAR INTERVALS. IN SOME CASES IT WILL RETURN TO THE ORIGINAL SPEED AFTER SOME TIME, IN SOME CASES IT WILL CONTINUE AT WHATEVER SPEED IT W
Other Years of the Porsche 944
1991 Porsche 944 Service and Repair Manual1990 Porsche 944 Service and Repair Manual1989 Porsche 944 Service and Repair Manual1988 Porsche 944 Service and Repair Manual1987 Porsche 944 Service and Repair Manual1985 Porsche 944 Service and Repair Manual1984 Porsche 944 Service and Repair Manual1983 Porsche 944 Service and Repair Manual