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Cadillac Deville fuel leak problems

32 of the 2,538 owner complaints about the Cadillac Deville describe fuel leak, most of them for the 1997 model year.

owner complaints
32
worst model year
1997
typical mileage
92,000
Is there a fix? There are 2 recalls for this area of the car. See below

By model year

What owners say

Filed Oct 13, 2018 · Fuel system · 89,000 miles · TN

Vehicle started leaking fuel underneath at the nylon fuel line. I had it repaired and it started leaking in a different location. Apparently the entire line is faulty and I cannot even seem to find a replacement. Fire hazard!

Filed Dec 6, 2017 · Fuel system · TN

Fuel rail line is made of plastic/nylon and has cracked near one of the fuel injectors on top of the engine and leaking fuel on my march 1998 cadillac deville

Filed Dec 29, 2016 · Fuel system · 160,000 miles · OH

Tl* the contact owns a 1996 cadillac deville. While placing fuel in the vehicle, the contact observed fuel leaking from underneath the vehicle by the fuel tank. The vehicle was serviced per the federal safety agency campaign number: 04v110000 (fuel system, gasoline:delivery:hoses, lines/piping, and fittings), but the remedy failed to repair the vehicle. The manufacturer was not notified of the failure. The failure mileage was 160,000.

Filed Nov 6, 2015 · Fuel system · 117,000 miles · PA

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.

Filed Aug 21, 2015 · Engine, Fuel system · 50,000 miles · WI

I had no idea this vehicle was under recall I actually own a 1984 cadillac sedan deville, it had a gas leak which rotted out the timing chain casing, and knocked teeth down into the gear box. I just realized this car was recalled because of the fuel leaks and the rotting parts under the engine compartment. I paid nearly 6,000 in 2004 thinking I was buying a great collector one time previous owner. Then I ended up with a lemon, I stored it cause I see they sell for around 35k fixed up. But I believe this should still be covered under the recall the engine and fuel pump work.

Filed Apr 28, 2015 · Fuel system · IN

Tl* the contact owns a 1998 cadillac deville. The contact observed fuel leaking onto the engine. The vehicle was taken to an independent mechanic where it was diagnosed that the fuel rail failed and needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was unknown. Th VIN was unavailable. ....updated 07/22/15 *bf updated 10/11/2017

Filed Oct 6, 2014 · Fuel system · 120,000 miles · PA

Tl* the contact owns a 1998 cadillac deville. The contact stated that the vehicle was leaking fuel from the fuel rail into the engine compartment. The vehicle was taken to an independent mechanic, but was not repaired. The manufacturer stated that the vehicle was not included in the federal safety agency campaign number: 04v110000 (fuel system, gasoline). The failure mileage was 120,000.

Filed Apr 10, 2014 · Engine · 138,000 miles · NJ

Tl* the contact owns a 2004 cadillac deville. The contact stated that while the dealer was performing an oil change on the vehicle, a leaking gasket was discovered from the bottom part of the engine. The failure was not repaired. The failure and current mileage was approximately 138,000. The VIN was not available.

Filed Aug 7, 2013 · Fuel system · 97,000 miles · CA

Tl* the contact owns a 1997 cadillac deville. The contact stated that fuel fumes were emitted in and around the vehicle. The contact mentioned that once he inspected the vehicle, he noticed that there was a fuel leak under the engine compartment. The vehicle was not taken to the dealer. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure and current mileage was 97,000.

Filed Oct 4, 2011 · Fuel system · 58,000 miles · NJ

I observed a liquid puddle about midway between the front and rear doors, on the driver side of the car. Upon further examination I concluded the liquid was gasoline. I felt where I thought the leak was coming from and felt tubing. I felt the a tube line and it crumbled in my hand. Upon further visual inspection, I observed other areas (along the drivers door) that were also leaking gasoline. Much of the gas line is crumbling plastic, causing gasoline to leak under the car.

Related recalls

Fuel system, gasoline: delivery: hoses, lines/piping, and fittingsReported March 4, 2004 · 483,477 vehicles affected
What is wrong
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. Cracking of the fuel rail or return line tubing can result in a fuel leak into the engine compartment.
Risk
Fuel leakage, in the presence of an ignition source, could result in a fire.
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. The recall began on june 2, 2004, for 1996-1997 oldsmobile aurora vehicles. Owners of 1995 cadillacs and 1996-1997 oldsmobile aurora were sent letters on august 6, 2004. Additional letters to owners will be forthcoming. Owners should contact oldsmobile at 1‑800‑630‑6537.

Recall number 04V110000 · Recall details

Fuel system, gasoline: storage: tank assemblyReported July 1, 2003 · 102,212 vehicles affected
What is wrong
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 unusually susceptible to malfunctions. If the sensor malfunctions, excessive vacuum can be applied during self-diagnostic testing.
Risk
Fuel system components can be damaged and fuel can leak from the vehicle when it is refueled. Fuel leakage in the presence of an ignition source can result in a fire.
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.

Recall number 03V238000 · Recall details

Questions about the Cadillac Deville fuel leak

Which Cadillac Deville years have fuel leak problems?

The model years with the most reports are 1997 (10 complaints), 1996 (5 complaints) and 1998 (5 complaints).

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