1982 Cadillac DeVille Reliability ReportCommon Problems, Repair Costs & Expert Verdict
Sell your car for what it's worth.
Every receipt, every service, one signed PDF you hand the buyer. OSC is the paperwork trail your resale price depends on.
- OSC Transfer PDF — every receipt
- Snap-a-receipt AI log
- Fuel & mileage tracker
- Shareable buyer view link
Quick Facts · 1982 Cadillac DeVille
- Has 2 NHTSA recalls on record — the most notable involves the fuel system, gasoline:storage.
- Outscores the 1981 Cadillac DeVille by 10 points — one of the stronger nearby years to consider.
- The system most likely to surface first: ht4100 engine (4.1l v8) (critical severity).
The 1982 Cadillac DeVille at a glance
- Is the 1982 Cadillac DeVille reliable?
- Autojunket rates the 1982 Cadillac DeVille 45/100 (grade F), categorized as high risk. An iconic luxury car of its era, but one plagued by severe engine reliability issues that demand significant investment.
- Should I buy a used 1982 Cadillac DeVille?
- Autojunket recommends reading the full reliability report before buying a 1982 Cadillac DeVille. The 1982 Cadillac DeVille, while undeniably elegant, is a mechanically compromised vehicle due to its highly unreliable HT4100 engine. Unless you are an experienced mechanic, an enthusiast with a substantial budget for restoration, or specifically seeking a project car for an engine swap, this model is not recommend…
- Which Cadillac DeVille years are the most reliable?
- Best model years to buy: For DeVille, look at pre-1981 models (with larger, more reliable V8s) or post-1985 (after HT4100 was revised, though still not stellar, or when Northstar came). The 1982 model year with the HT4100 is generally considered one to avoid for reliability.. Years to avoid: 1981 (V8-6-4) and 1982-1985 (HT4100 equipped models)..
- What are the most common problems with the 1982 Cadillac DeVille?
- The top failure points on the 1982 Cadillac DeVille are HT4100 Engine (4.1L V8) (typically around 60,000-100,000 miles), Early Electronic Systems (typically around 50,000-80,000 miles), Automatic Transmission (THM200-4R) (typically around 80,000-120,000 miles). Autojunket's full report includes repair-cost ranges and inspection checklists for each.
- At what mileage do problems start on the 1982 Cadillac DeVille?
- The first major mileage danger zone for the 1982 Cadillac DeVille is around 30,000. Low Risk Zone — At this mileage, the car is still relatively young. Expect routine maintenance like fluid changes, tire rotations, and minor adjustments. However, keep an eye on early signs of HT4100 oil leaks.
Every answer is generated from real repair, recall, and ownership data — full breakdown in the report.
Read the full free reportShould You Buy the 1982 Cadillac DeVille?
The 1982 Cadillac DeVille, while offering quintessential American luxury and a plush ride, is a high-risk proposition primarily due to its problematic HT4100 engine. Proceeding without a significant budget for repairs and a deep understanding of its mechanical vulnerabilities is a financial gamble. This vehicle demands an owner prepared for considerable investment to keep it reliably on the road.
The 1982 Cadillac DeVille, while undeniably elegant, is a mechanically compromised vehicle due to its highly unreliable HT4100 engine. Unless you are an experienced mechanic, an enthusiast with a substantial budget for restoration, or specifically seeking a project car for an engine swap, this model is not recommend…
Best Model Years
For DeVille, look at pre-1981 models (with larger, more reliable V8s) or post-1985 (after HT4100 was revised, though still not stellar, or when Northstar came). The 1982 model year with the HT4100 is generally considered one to avoid for reliability.
Years to Avoid
1981 (V8-6-4) and 1982-1985 (HT4100 equipped models).
Biggest Strengths
- Classic opulent styling and comfortable interior
- Smooth, isolated ride quality
- Spacious cabin and trunk capacity
Top Risk Areas
The systems that tend to fail first on the 1982 Cadillac DeVille, with the typical mileage window when each becomes a concern. Detailed repair-cost ranges and exact what-to-check inspection notes are in the full report.
Known for chronic head gasket failures, oil leaks, main bearing wear, and cooling system issues due to poor material choices and design. This engine often fails catastrophically.
The Electronic Control Module (ECM) and associated sensors (oxygen, coolant temp) were primitive and prone to failure, leading to rough idle, stalling, poor fuel economy, and 'limp home' modes.
While not as catastrophic as the engine, the THM200-4R often suffered from internal wear, delayed shifts, and solenoid issues, especially when subjected to the HT4100's stresses.
1982 Cadillac DeVille Mileage Danger Zones
The mileage windows when the 1982 Cadillac DeVille most commonly needs attention. Plan ahead, budget accordingly, and inspect before you cross each threshold.
Low Risk Zone
At this mileage, the car is still relatively young. Expect routine maintenance like fluid changes, tire rotations, and minor adjustments. However, keep an eye on early signs of HT4100 oil leaks.
Maintenance Zone
This mileage often reveals the first significant symptoms of the HT4100's weaknesses, such as coolant loss, oil consumption, or head gasket issues. Transmission service and suspension component inspections become critical.
Elevated Risk Zone
Beyond 90k, the risk of major engine failure for the HT4100 increases dramatically. Electrical gremlins become more prevalent, and significant overhaul of the braking system or major suspension components may be required.
High Risk Zone
At this mileage, assume every major component is either due for replacement or has already been addressed. Ownership becomes a continuous project, with a high likelihood of concurrent failures across multiple systems. Consider an engine…
1982 Cadillac DeVille Ownership Cost Outlook
What it typically costs to keep the 1982 Cadillac DeVille on the road. Full 5-year cost-of-ownership projection and major-failure-risk forecast are in the report.
Annual Maintenance
$800-1,500 (assuming no major failures)
Moderate Repairs
$1,000-2,500 frequently (e.g., transmission rebuild, electrical issues)
How Long Does the 1982 Cadillac DeVille Last?
Any 1982 DeVille will have considerable mileage and age. Assume any car found will require significant mechanical attention, particularly regarding the engine, unless there's documented proof of a recent engine overhaul or, ideally, a reliable engine swap.
What 1982 Cadillac DeVille Owners Actually Say
What Owners Love
- Luxurious, ultra-comfortable ride that floats over imperfections
- Distinctive, classic Cadillac styling with strong road presence
- Spacious interior for five adults, excellent for cruising
- Quiet cabin, providing a serene driving experience
Common Frustrations
- Frequent, costly, and often recurring HT4100 engine issues
- Poor fuel economy despite the smaller V8 engine
- Difficult to find skilled mechanics and specialized parts for vintage electronics
- Performance is sluggish, especially with the HT4100 V8
Who Should Buy the 1982 Cadillac DeVille?
Best For
- Classic car enthusiasts seeking a restoration project
- Collectors focused on specific Cadillac model history, not daily driving
- Individuals with strong mechanical skills and a dedicated repair budget
Not Ideal For
- Daily commuters or anyone needing dependable transportation
- First-time classic car owners
How the 1982 Cadillac DeVille Compares to Rivals
The 1982 DeVille represents a challenging transitional period for Cadillac, where the pursuit of fuel economy and emissions control with new technology severely compromised the legendary reliability of previous generations.
More Reliable Than
- No direct competitors in terms of reliability from its own era, given its engine challenges. Perhaps some cheaper, less well-engineered cars.
Comparable To
- Other early 1980s domestic luxury sedans attempting downsized engines with primitive electronic fuel injection.
NHTSA Recalls
2 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.
FUEL SYSTEM, GASOLINE:STORAGE
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.
FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM
UNDER CERTAIN VEHICLE OPERATING CONDITIONS, THE GOVERNOR WEIGHT RETAINER IN THE INJECTION PUMP MAY FAIL. THE THROTTLE VALVE COULD STICK, PREVENTING RETURN TO IDLE AND SHUT DOWN OF THE ENGINE BY THE DRIVER.
What breaks on the 1982 Cadillac DeVille?
Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.
Autojunket OSC · OSC Transfer
Sell your 1982 Cadillac DeVille for what it's actually worth.
Log every service. Sell with a signed PDF. Every receipt, mileage-verified, in the buyer's hands.
Cadillac DeVille by Year
Compare AutoScores across nearby years of the Cadillac DeVille. Click any year for its full report.
If You're Considering This, Also Look At
Similar class, similar year range — ranked by AutoScore.
Relevant Products for Your 1982 Cadillac DeVille
Parts and accessories matched to your 1982 Cadillac DeVille
As an Amazon Associate I earn from qualifying purchases.
Where the 1982 Cadillac DeVille report beats Carfax + CR
Carfax tells you if it crashed. Consumer Reports rates the whole nameplate. Autojunket tells you what will actually break on this specific year — and how to negotiate it.
Year-specific reliability score
Common problems + repair costs
Mileage danger zone map
AI negotiation script + walk-away price
Single report price
Frequently Asked Questions
Sell your 1982 Cadillac DeVille for what it's actually worth.
Log every service on your Cadillac DeVille. When it's time to sell, hand the buyer a signed PDF — every receipt, mileage-verified, close the deal at your price.
- OSC Transfer PDF — every receipt
- Snap-a-receipt AI log
- Fuel & mileage tracker
- Shareable buyer view link
Recommended Reading for the Cadillac DeVille
Most Expensive Cars to Maintain (2026 Rankings)
Most Reliable Used SUVs Under $15,000 in 2026
Find the most reliable used SUVs under $15,000 in 2026. Expert insights on Toyota RAV4, Honda CR-V, Mazda CX-5, Subaru Forester, Hyundai Tucson.
Worst Used Cars to Buy (Avoid These Years)
Avoid costly mistakes! Discover the worst used cars and years to skip for reliability, saving you thousands in unexpected repairs. Get Autojunket's expe…