This 1993 Cadillac Seville factory service and repair manual is built around this exact year, engine and trim combination, covering the 4.9L V8 (VIN B) and the 4.6L V8 (VIN 9, L37) with the torque values, clearances and diagnostic steps Cadillac actually published for these powerplants, not a generic Seville reference.
Engines covered
- 4.9L V8 (300 cu in) — OHV, naturally aspirated, gasoline
- 4.6L V8 (281 cu in) — DOHC, naturally aspirated, gasoline
Body styles covered
- 4-door sedan
Trims covered
- Base
- STS
Known issues on the 1993 Seville. Two recalls are on federal record for this model year. The first covers the fuel feed and return lines to the engine fuel injection system, which were not fully assembled and locked and can work loose, causing a fuel leak in the engine compartment that risks an underhood fire near any ignition source. The second covers the air conditioner compressor clutch assembly, which can contact the auxiliary engine oil cooler outlet hose and wear it through, leaking engine oil into the engine compartment where contact with the hot exhaust can start a fire. Owners have filed 46 complaints for the year. The factory diagnostic and repair procedures behind both systems are here.
From tracing a fuel line leak to checking A/C compressor clutch clearance, it keeps you on the OEM procedure and the correct specification for your specific 1993 Seville.
THE FUEL FEED AND RETURN LINES TO THE ENGINE FUEL INJECTION SYSTEM WERE NOT FULLY ASSEMBLED AND LOCKED. THE LINES CAN WORK LOOSE, CAUSING A FUEL LEAK IN THE ENGINE COMPARTMENT.
FUEL LEAKS IN THE ENGINE COMPARTMENT CAN RESULT INUNDERHOOD FIRES IF EXPOSED TO A SOURCE OF IGNITION
DEALER WILL INSPECT VEHICLE AND, IF NECESSARY, ADJUST OR REPLACE THE FUEL FEED AND RETURN LINES TO T
Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
SERVICE ENGINE SOON LIGHT ON AND CHUGGLE OR SURGE. DIAGNOSTIC TROUBLE CODE P0741 OR DIAGNOSTIC TROUBLE CODE 39 (TCC STUCK OFF). *TT
4.0L L47, 4.6L LD8 L37 ENGINE WATER PUMP COVER P/N 12571913- THERMOSTAT LOOSE. ALSO INCLUDING MODEL 2003 CADILLAC ELDORADO. *MR
THIS BULLETIN IS BEING ISSUED TO INFORM DEALERS OF ENHANCEMENTS TO CRANKCASE, OIL DISTRIBUTION PLATE AND OIL PAN SEALING BY USING RTV SEALANT. *TT
INTERMITTENT LIGHT SURGE, CHUGGLE OR BUMP AT 45-60 MPH WITH TCC ENGAGED. *TT
SOME CUSTOMERS MAY COMPLAIN ABOUT A ENGINE COLD / KNOCK / TICK NOISE. *TT
CONCERNS OF DOOR HANDLES ON WHITE PAINTED VEHICLES TRUNING YELLOW. *YC
CONDITIONS REGARDING DTC CODE P039, TORGUE CONVERTER CLUTCH ENGAGEMENT, MAY SET WHEN DRIVING UP A SLIGHT GRADE AFTER A COLD START. *YC
Showing the 8 most recent of 20 technical service bulletins on file with NHTSA.
WHILE TRAVELING 55MPH & STARTED TO SLOW DOWN WHEN THE ABS BRAKES LOCKED UP. WAS EXPERIENCING EXTENDED STOPPING DISTANCE. THIS CAUSED THE VEHICLE TO SKID. VEHICLE HIT AN EMBANKMENT & THEN FLIPPED OVE
WHILE TRAVELING 55MPH & STARTED TO SLOW DOWN WHEN THE ABS BRAKES LOCKED UP. WAS EXPERIENCING EXTENDED STOPPING DISTANCE. THIS CAUSED THE VEHICLE TO SKID. VEHICLE HIT AN EMBANKMENT & THEN FLIPPED OVE
INTERMITTENT BACK FIRE TOWARD INTAKE MANIFOLD, CRACKING MANIFOLD CAUSING FIRE IN ENGINE COMPARTMENT.
THE VEHICLE WAS REPAIRED UNDER THE RECALL FOR THE FUEL LINES AND NOW THE CAR HAS CAUGHT ON FIRE. RECALL 93V088, FUEL LINES-METALLIC. *AK THE VEHICLE'S FIRE STARTED IN THE ENGINE COMPARTMENT. *SLC
WHILE DRIVING VEHICLE BEGAN TO SMOKE. OWNER PULLED OVER VEHICLE ENGULFED IN FLAMES. TT
Showing the 5 most serious of 53 complaints filed with NHTSA.
