1983 Cadillac DeVille Service and Repair Manual
This factory service and repair manual for the 1983 Cadillac DeVille is built around this exact model year and trim, so the specifications, fitting diagrams, and repair sequences inside are the ones Cadillac published for your car, not a generic approximation.
Engines covered
- 4.1L V8 (250 cu in) — OHV, naturally aspirated, gasoline
- 5.7L V8 (350 cu in) — OHV, naturally aspirated, diesel
Body styles covered
- 2-door coupe
- 4-door sedan
Trims covered
- Base
- Cabriolet
- d'Elegance
Known issues on the 1983 DeVille. One recall is on federal record for this model year, covering the fuel storage system: some fuel filters were produced with an incorrect threaded fitting, close enough in size that it can appear to be correctly threaded onto the fuel line when it is not. The remedy calls for replacing the affected filters with the correct part. Owners have filed 5 complaints for the year, and no technical service bulletins are logged. The factory diagnostic and repair procedures behind the fuel system are here.
From a fuel filter swap to a full interior or trim-specific repair, it keeps you on the OEM procedure and the correct specification for your specific 1983 DeVille.
THE FUEL FILTERS WERE PRODUCED WITH AN INCORRECT THREADED FITTING. THE INCORRECT FITTING IS SIMILIAR ENOUGH IN SIZE THAT THE FUEL FILTER MAY APPEAR TO BE CORRECTLY THREADED ONTO THE FUEL LINE.
REPLACE THE FILTERS WITH THE CORRECT FILTERS.
THE IMPROPER THREADING COULD CAUSE A GASOLINE LEAK WHICH MAY RESULT IN AN UNDERHOOD FIRE WHEN EXPOSE
ACCIDENTN DUE TO SUDDEN ACCELERATION.
VEHICLE EXPERIENCED SUDDEN ACCELERATION CAUSING LOSS OF VEHICLE CONTROL. *MJS
THE VEHICLE JUMPS A HEAD/ACCELERATES ON ITS OWN WHILE DRIVING. YH
ENGINE MALFUNCTIONED. ALSO TRANSMISSION DOES NOT SHIFT WHEN ACCELERATING. ALSO ENGINE LEAKING OIL, REPLACED VALVE COVER GASKET. *AK
ENGINE MALFUNCTIONED. ALSO TRANSMISSION DOES NOT SHIFT WHEN ACCELERATING. ALSO ENGINE LEAKING OIL, REPLACED VALVE COVER GASKET. *AK
Showing the 5 most serious of 6 complaints filed with NHTSA.
