1985 Cadillac Seville V8-350 5.7L DSLFACTORY OEM SERVICE PROCEDURE

Connectors


C100-LH Side Of Engine Cowl
C101-Center Of Engine Cowl
C102-On RH Front Wheel Well
C103-Behind I/P, Left Of Steering Column
C104-Behind I/P, Right Hand Side Of Steering Column
C105-Riviera-RH Front Corner Of Engine Compartment Near Battery
Toronado-Upper LH Front Of Dash
C106-Center Of Engine Cowl, Right Of Brake Booster
C110-Eldorado & Seville-Behind LH Side Of I/P
Riviera & Toronado-Behind I/P, Near Radio
C111-Eldorado & Seville-Behind LH Side Of I/P
Riviera & Toronado-Behind I/P, Near Radio
C112-By Fuel Pump
C115-Below Trunk, Left Of Fuel Intake
C144-By Fuel Pump
C176-RH Shroud Area
C192-Clipped To Battery Tray
C205-Behind I/P, Near Steering Column
C209-On Fuse Panel
C223-Behind I/P, Left Of Steering Column
C227-Upper Base Of Steering Column
C230-Behind I/P, Above Fuse Block
C231-Rear Window Shelf Panel
C235-Behind I/P, Near Steering Column
C237-LH Front Fender, Near Marker Lamp
C238-RH Front Fender, Near Marker Lamp
C248-Behind LH Rear Wheel Well
C249-Behind LH Rear Wheel Well
C250-Behind LH Rear Wheel Well
C252-Behind LH Rear Wheel Well
C253-Behind LH Rear Wheel Well
C257-Behind Center Of I/P, Near Radio
C258-Behind Radio
C259-Behind Radio
C260-Behind Radio
C261-Behind Radio
C266-LH Rear Of Trunk
C275-Near Front Of LH Door Sill
C278-Near Front Of LH Door Sill
C279-Behind LH Rear Wheel Well
C284-In Trunk Lid, Near Trunk Lamp
C288-Near Upper LH "A" Pillar
C289-Near Upper RH "A" Pillar
C290-LH Side Of I/P, Near Cruise Controller
C301-Below Trunk, Behind Fuel Tank
C302-Behind I/P, Near Fuse Panel
C312-Above Rear Center Of Fuel Tank
C313-LH Shroud, Near Center Access Hole
C319-LH Rear Corner Of Trunk
C324-RH Rear Corner Of Trunk
C330-Behind I/P, Near Fuse Panel
C331-Behind LH Front Wheel Well
C347-Below Trunk, Behind Fuel Tank
C349-Behind LH Side Of I/P, Near Fuse Panel
C350-Eldorado & Seville-Upper Base Of Steering Column
Riviera & Toronado-Behind LH Rear Wheel Well
C351-Upper Base Of Steering Column
C357-Behind I/P, Above Glove Box
C358-Behind I/P, Above Glove Box
C364-Below RH Side Of Driver's Seat
C376-Behind LH Side Of Instrument Cluster
C377-Behind RH Side Of Instrument Cluster
C381-RH Shroud Near Lower Access Hole
C390-Under Driver's Seat
C411-Rear Center Of Trunk, Near Solenoid
C431-Below Rear LH Valve Cover
C432-Top Rear Of Engine, Near Distributor
C433-V6-Near RH Valve Cover
V8-Above Rear Of RH Exhaust Manifold
C434-RH Side Of I/P, Near Glove Box
C464-Rear Corner Of Engine Compartment
C479-Under Driver's Seat
C484-Under Driver's Seat
C485-Under Driver's Seat
C498-Behind I/P, Near Glove Compartment
C500-Under Driver's Seat
C501-LH Shroud, Near Junction Block
C502-RH Shroud, Near Junction Block
C504-Above Fuse Panel
C505-Above Fuse Panel
C507-Under Front Passenger's Seat
C514-Under Front Passenger's Seat
C515-Under Front Passenger's Seat
C534-Under Front Passenger's Seat
C547-Under Front Passenger's Seat
C552-Center Of Windshield Header Area
C567-Behind I/P, Near LH Side Of Glove Box
C575-On Top Of LH Rear Wheel Well
C596-On LH Fender Apron
C587-Eldorado & Seville-LH Shroud At Upper Access Hole
Toronado & Riviera-Behind I/P, Left Of Steering Column
C598-Behind I/P, Left Of Steering Column
C599-RH Shroud Near Upper Access Hole
C600-Eldoardo & Seville-In Lower Front Of LH Door
Riviera & Toronado-LH Shroud, Near Center Access Hole
C601-In Lower Front Of RH Door
C602-In Lower Front Of RH Door
C603-LH Shroud, Near Lower Access Hole
C604-In LH Rocker Panel
C608-RH Shroud, Near Center Access Hole
C609-Behind I/P, Right Of Steering Column
C610-Riviera-Top Front Of Engine
Toronado-Right Of Steering Column, Near Gear Selector Switch
C625-LH Shroud, Below Junction Block
C628-RH Shroud, Below Junction Block
C629-In Harness, Above RH Rear Wheel Well
C630-In Center Of Trunk Lid
C631-RH Shroud, Below Junction Block
C634-Behind I/P, Right Of Steering Column
C644-RH Shroud, Below Junction Block
C646-Except Seville-In Driver's Door
Seville-LH Shroud, Near Center Access Hole
C647-In Driver's Door
C650-Under I/P, Near Fuse Block
C651-LH Shroud, Near Center Access Hole
C652-RH Shroud, Near Center Access Hole
C654-In Roof At Top Of LH "A" Pillar
C664-Behind I/P, Below Light Switch
C665-Behind I/P, Near Light Switch
C666-In Front Lamps Harness, Right Of LH Lamps
C667-In Front Lamps Harness, Left Of LH Lamps
C668-In Front Lamps Harness, Left Of RH Lamps
C669-In Front Lamps Harness, Left Of RH Lamps
C670-Behind RH Side Of Dash
C671-Behind I/P, Near Steering Column
C672-Behind LH Headlamps
C673-Under LH Side Of I/P, Near Fuse Block
C674-Under LH Side Of I/P, Near Fuse Block
C675-Lower LH Side Of Steering Column
C685-At Base Of LH "B" Pillar
C686-At Base Of LH "B" Pillar
C687-At Base Of RH "B" Pillar
C688-At Base Of RH "B" Pillar
C711-Behind I/P
C714-On ECM
C715-On ECM
C716-On ECM
C751-LH Shroud, Below Junction Block
C755-Front Lights Harness, Ahead Of LH Wheel Well
C756-Front Lights Harness, Ahead Of LH Wheel Well
C757-Front Lights Harness, Right Of Radiator
C758-Front Lights Harness, Near Center Of Radiator
C759-Riviera-Below Trunk, Left Of Fuel Intake
Toronado-Behind Center Of Rear Bumper
C767-Behind LH Rear Wheel Well
C768-Below Front Of LH Rear Window
C769-Below Front Of RH Rear Window
C774-Top Rear Of Engine, Near Distributor
C801-RH Front Fender, Near Antenna Motor
C809-Rear Of Engine
C810-Top Of Engine, Above Rear Of RH Valve Cover
C815-Behind I/P, Near Steering Column
C820-RH Shroud, Near Center Access Hole
C849-Behind I/P, Left Of Radio
C850-Behind I/P, Above Steering Column
C854-LH Shroud, Near Center Access Hole
C855-Behind I/P, Left Of Steering Column
C856-LH Shroud, Near Center Access Hole
C859-Upper LH "A" Pillar
C879-Under LH Side Of I/P
C864-Behind I/P, Near RH Side Of Glove Box
C901-LH Front Of Dash, Near Master Cylinder
C902-Behind I/P, Near Steering Column
C903-Behind I/P, Near LH Shroud
C904-LH Shroud, Near Center Access Hole
C905-RH Shroud, Near Center Access Hole
C906-Behind I/P, Near LH Shroud
C908-Near Steering Column
C909-Upper Part Of Steering Column
C990-Behind I/P, Left Of Steering Column
C991-Behind RH Side Of Glove Compartment



Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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