1986 Cadillac DeVille Service and Repair Manual

4.7 · Trusted by 14,000+ mechanics & DIYers
Regular price $29.99 USD
  • Lightning-Fast Downloads
    Optimized files — even slow connections handle it
  • Instant Search & Navigation
    Jump to any procedure or spec with one click
  • Print One or All Pages
    Bring only the pages you need to the shop
  • Covers Every System & Component
    Every procedure for the 1986 Cadillac DeVille
Sample Preview

Unlock the Full Manual

Complete repair procedures
Wiring diagrams & schematics
Torque specifications
Full search & bookmarks
$29.99
Buy 2+ Manuals, Save 20% Discount applied automatically at checkout
20% OFF
Secure Checkout
No Subscriptions
Factory-Grade Data

1986 Cadillac DeVille service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical coverage with wiring diagrams
  • Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more

Trims covered

  • d'Elegance Coupe 2-Door
  • Touring Coupe 2-Door
  • Touring Sedan 4-Door
  • d'Elegance Sedan 4-Door

Engines covered

  • 4.1L 250Cu. In. V8 GAS OHV Naturally Aspirated

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Google Pay
  • Maestro
  • Mastercard
  • PayPal
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Vehicle Safety Data

1986 Cadillac DeVille Recalls & Complaints

NHTSA #86V05600028/04/1986Component: EXTERIOR LIGHTING:HEADLIGHTS:SWITCH

THE PUSH-PULL HEADLIGHT SWITCH MAY HAVE ELECTRICAL CONTACTS WHICH ALLOW AN INTERMITTENT HEADLIGHT CIRCUIT CAUSING HEADLIGHT TO FLICKER OR SUDDENLY GO OUT.

Remedy

REPLACE HEADLIGHT SWITCH AS NECESSARY.

No service bulletins No technical service bulletins on file with NHTSA for the 1986 Cadillac DeVille.
19950128Component: VEHICLE SPEED CONTROLCrash reported

INTERMITTENT SUDDEN ACCELERATIONS, CAUSING LOSS OF CONTROL/ACCIDENT. *SKD

20081008Component: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED

1986 CADILLAC DEVILLE/FLEETWOOD ABS BRAKE SYSTEM. CONSUMER REQUESTS THAT ENFORCEMENT OF SAME INSPECTION, TESTING AND REPLACEMENT OF THE FAILED BRAKING PARTS FOR HIS VEHICLE. *NJ THE CONSUMER STA

20000413Component: ENGINE AND ENGINE COOLING:ENGINE

CAR DEVELOPED AN OIL LEAK, I THOUGHT IT WAS THE OIL PAN GASKET. TOOK IT TO A DEALERSHIP WHO CHANGED THE OILPAN GASKET. IT STILL LEAKED OIL, SO I REMOVED THE ENGINE. I DISCOVERED THAT THE BLOCK HAD

20000313Component: ENGINE AND ENGINE COOLING:ENGINE

WHILE DRIVING INTO THE DRIVEWAY UPON RETURNING FROM WORK, PARKED THE VEHICLE, NOTICED A PUDDLE OF WATER UNDERNEATH. LIFTED UP THE HOOD, COULD SEE WATER COMING OUT OF THE ENGINE CYLINDER GASKET. *A

19991229Component: LATCHES/LOCKS/LINKAGES:DOORS:LATCH

LATCH LOCK ASSEMBLY ON BOTH DRIVER'S AND PASSENGER'S SIDES BECAME DEFECTIVE, NOT ALLOWING BOTH DOORS TO OPEN FROM THE INSIDE OR OUTSIDE. *AK

Showing the 5 most serious of 27 complaints filed with NHTSA.

All Model Years

Other Years of the Cadillac DeVille

Need a manual for a different year? Browse every Cadillac DeVille we cover.

Explore More

More Cadillac Models

Browse service and repair manuals for other Cadillac models in our catalog.