Fuel System complaints by model year
Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
What owners report
Tl* the contact owns a 2004 Cadillac Deville. The contact observed fuel leaking from the front of the vehicle without warning. The failure recurred several times. The vehicle was taken to an independent mechanic where it was diagnosed that the valve cover gasket failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 117,000.
Tl* the contact owns a 2004 Cadillac Deville. The contact stated that the fuel filler tube corroded and as a result, it prevented the gas cap from completely closing causing the check engine warning light to illuminate. The vehicle was taken to the dealer. The technician diagnose that the fuel tank needed to be replaced. The vehicle had not been repaired. The manufacturer was notified of the issue. The approximate failure mileage was 70,000.
Fuel level sensor stopped working , also after I gotten my transmission rebuilt and my front motor mount placed in the car no longer cranks like normal . Takes a while to turn over, key slides out , steering wheel is hard to turn while during and steering wheel jerks in the other direction while turning . The power steering has a leak and also the air ride suspension has stopped working lowered the car and shocks have lowered . NHTSA campaign id: 14V355000 NHTSA campaign id: 03V238
In September of 2014, I received a recall from the state of massachusetts about (1) part that must be repaired in my 2003 Cadillac Deville sedan: (1) ignition switch 14V355000, the only recall showing up on the GM web-site is the ignition switch and the other three and the first are listed here totaling (4) recalls all together! After entering my make, model, year, and VIN, of my vehicle I received three more urgent recalls ! (2) fuel tank pressure sensor 03V238000, (3) driver air bag 03V051000, and the (4) air bag inflator 02V222000. During a recorded phone conversation an agent and a manager at/from (GM) general motors stated that they do no honor any recalls from safercar.gov/NHTSA or any other web-site as they are "not valid" but their own @GM.com. These are serious recalls that require immediate attention and validation by GM before they are sued for much more than simple repairs! …
The car started accelerating, on its own, up to 40 MPH from a stop sign or red light. The gas pedal was not stuck. Legacy Ford in lagrande, oregon has told us it is an internal problem and they will have to put their diagnostic machine on it. We have already paid them 179.36 for labor, gasket and cleaner. They had told us to bring the car to them if it happened when we were in town so they could test it further. Last week I was in town and it happened so I took it to them. They couldn't diagnose the problem at the time so that is why they need to use the diagnostic machine. I tried to report this to Cadillac but they weren't interested in my problem.
Tl* the contact owns a 2002 Cadillac Deville. After the vehicle was parked, there was smoke coming from under the steering column. After a few minutes, it was informed that the vehicle caught fire. The fire department was able to extinguish the fire. A police report was filed. The manufacturer was not notified of the failure. The VIN was not included in NHTSA campaign number: 03V238000 (fuel system, gasoline). The failure mileage was not available.
$3440.72 of repairs from jan 05 to aug 06, includes air bags, computer problems, electric windows, air conditioner,fuel pump,water pump,electric seat heater,etc. On a 2001 Cadillac dts with 60038 miles. All fixed by dealer and extended warranty. We paid #50.00 deductible for each trip to service dept. 8 times since jan 05. The complaint is regarding the number of times we have been without a vehicle and the numerous repairs on a car that is suppose to be well made, and of course is very expensive. We are selling this vehicle because it is not reliable and will have to withdraw several thousand dollars to make up the difference of the sale value and what we owe. We would be keeping the car until paid for if there had not been so many problems. This car is kept in a garage at all times,and we have it serviced every 3000 miles and have done this since we bought the car in dec 2003. …
2001 Deville fuel level indicator is erratic, showing three bars and then jumping to almost full causing me to run out gas. The car has 140,000 miles on it. Now I have had to use my trip odometer as a fuel gauge, knowing how many miles per gallon I average. I have heard this a common problem in GM vehicles newer than 2008. I also hear that this is expensive to fix.
Related recalls (2)
Fuel system, gasoline › Delivery › Hoses, lines/piping, and fittings
Some passenger vehicles equipped with 4.0l v8 engines have a condition in which the nylon tubing used in the fuel rail construction May degrade and crack. Additionally, the 1995 model year uses a unique underhood fuel return line that May crack.
Remedy: Dealers will inspect and, if necessary, replace the engine fuel rail with a new stainless steel fuel rail. Dealers will also install a revised chassis fuel return line.
Fuel system, gasoline › Storage › Tank assembly
On certain Cadillac deville and seville passenger vehicles, funeral coaches, and limousines equipped with a v8 (4.6l) engine, Oldsmobile aurora passenger vehicles equipped with a v8 (4.0l ) engine, and Pontiac bonneville ssei passenger vehicles equipped with a supercharged v6 (3.8l) engine, the fuel tank pressure sensors are…
Remedy: Dealers will replace the fuel tank pressure sensor. Owner notification began on October 17, 2003. Owners should contact Cadillac at 1-866-982-2339; Oldsmobile at 1-800-630-6537; or Pontiac at 1-800-620-7668.
NHTSA investigations
Fuel rail leakage
The fuel rail assemblies used in the subject vehicles were manufactured by dana.the fuel rail jumper tubes were made of monolayer nylon 12 (pa12).in model year (my) 1998, the jumper tube material was changed from pa12 to m-bond (a multi-layer ptfe/pa12).in addition, all service parts produced since the end of production 1997 use the m-bond jumper tubes.
Fuel rail leaks
On March 3, 2004, general motors notified odi that it was recalling approximately 94,000 my 1995-97 Oldsmobile aurora vehicles equipped with 4.0l v8 engines (rpo l47 - vin8 c) to address concerns with underhood fuel leakage from cracked fuel rails and, in some of the vehicles, cracked fuel return lines.
Frequently asked questions
Which Cadillac Deville years have fuel system problems?
By NHTSA complaints, the 1997 (40), 1995 (37), 1996 (35), 1998 (16) and 2002 (11) model years. Fuel System complaints make up 15% of all complaints for the 1997.
Is there a recall for Cadillac Deville fuel system problems?
Yes — 2 recalls, including 04V-110 (hoses, lines/piping, and fittings, Mar 4, 2004); 03V-238 (tank assembly, Jul 1, 2003). Recall repairs are free at authorized dealers; check a specific car with the VIN recall check.
At what mileage do Cadillac Deville fuel system problems start?
Across all years, half of the complaints with a recorded mileage happened before about 90,000 miles; 16% happened before 50,000 miles.
What part fails most often?
Owners most often name the fuel injection system › fuel rail (34 mentions), followed by the delivery › fuel pump (26).
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.