2004 Cadillac Deville engine problems
The 2004 Cadillac Deville has 22 engine complaints filed with NHTSA — 10% of the year's total, and roughly flat versus the prior model year.
22
Engine complaints
10%
Share of year
0
Crash-involved
0
Related recalls
Engine complaints by year
What owners report
“TL* THE CONTACT OWNS A 2004 CADILLAC DEVILLE. THE CONTACT STATED THAT THE ENGINE OIL LEAKED ONTO THE EXHAUST SYSTEM AND CAUSED THE ENGINE TO SMOKE. THE DEALER STATED THAT THE ENGINE VALVE COVER SEAL AND GASKET NEEDED TO BE REPLACED; HOWEVER, THE MANUFACTURER DENIED ASSISTANCE WITH THE REPAIR. THE…”
Common questions
How many engine complaints does the 2004 Cadillac Deville have?
NHTSA has 22 complaints about the 2004 Cadillac Deville engine — 10% of all complaints filed for that model year.
Related
Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.
Compiled by Sharon Ben-Moshe, Founder.