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
I contacted GM bc the technical service bulletin for the fuel pressure regulator says the fuel rail also needs replaced if it is a delphi fuel rail. The regulator on this car has been changed but still has the same delphi fuel rail. The car currently has a gas leak. When I search the VIN it doesn't show any recalls currently but based on the TSB. The rail should've been replaced with a Bosch. I am a service tech at a private shop. If I weren't a tech I wouldn't have known the rail wasn't replaced and I May not have noticed the leak until I burnt to death in a firey crash. GM has no answer except to take it to a dealership where they want to charge me a ridiculous diagnostics fee which I refuse to pay, especially for a recall repair that wasn't done properly the first time.
Request for compensation for engine failure as a result of a defective plastic intake manifold. Coolant leaked into the engine which was caused by the main bearing seizing. Recall# 04V090000. The initial diagnosis was that the seal under the plastic plenum was defective. The check engine light had come on within two blocks of leaving the service dealer. They found that coolant leaked into the engine again and the warped plastic plenum would not seal against the manifold. The consumer stated the vehicle needed other repairs such as a replacement motor for the passenger's window, power steering hose which was leaking, a rear wheel cylinder and a new transmission.
I just bought this used car on jan 1, 2013. I noticed a smell from the car but wasn't sure what is was and bought the car anyways. Well a couple weeks later my boyfriend was checking my fluids on the car and noticed a fuel leak under the hood, so we went to auto zone and bought a fuel line that cost around $30, he put it on, still leaking, well we figured since the fuel line that we bought wasn't precrimped it wasn't going to work, so we went to the junk yard and got the exact same part off another 1998 Oldsmobile 88, figured since it was precrimped it would work, not the case, fuel still leaking under the hood, so we went to the Chevy dealership in nashville and bought the very last fuel line in the state around $120, which the difference between this one and the other two is that it is 6 ft. …
While merging into interstate rush hour traffic with no warning engine failed causing lost of braking and steering effectiveness. No warning was received. Vehicle was towed to dealer and upper intake was found cracked allowing coolant to enter combustion chamber. One week and $800.00 later car was "repaired" vehicle continues to experience fuel delivery problems. Hard starting, random stalling. Dealer advised me this is a common problem with the 3800 series ii engine regardless of mileage or type of use and maintenance. Considering the sudden lost of all power this is very dangerous as braking and steering effectiveness is reduced as is electrical power for accessories such as headlamps and windshield wipers.
While driving vehicle would make a loud squealing noise, and the check engine light stays on. Took to dealer and the dealer says GMC has redesigned the intake manifold, dealer says the intake manifold has a interior vacuum leak. Please provide any further information. Ts
The engine stalls while the vehicle is in motion. Has been to dealer 2 times and problem cannot be duplicated. Dealer felt the problem was a combination of a computer problem and fuel injection problem, Oldsmobile took vehicle back.
Tl* the contact owns a 1996 Oldsmobile 88 ls. The contact stated that the engine made a loud noise when the vehicle was started and the engine caught on fire. The vehicle was taken to a local mechanic who inspected the vehicle and located the failure at the intake manifold plastic, which failed and caused the fuel lines to burn and melt. The manufacturer was made aware of the failure, but denied assistance with repairs because the vehicle was not included in NHTSA campaign id number: 96V116000 (fuel system, gasoline: fuel injection system). The vehicle was not repaired. The failure and the current mileage was 192,000.
Tl contact owns a 1996 Oldsmobile lss. On November 7, 2007, while driving 65 MPH, the contact heard an unfamiliar noise coming from her vehicle. She pulled over, exited the vehicle, and noticed flames rising from under the hood. The contact believed safety recall # 96V116000 (fuel system, gasoline:fuel injection system) was responsible for causing the fire. The current mileage is 186,272 and failure mileage was 184,272.
Related recalls (2)
Fuel system, gasoline › Delivery
On certain passenger vehicles equipped with 3800 v6 (l36) engines and certain delphi fuel pressure regulators, the regulators have a much higher than usual rate of fuel leaks. A leak can allow fuel to enter the intake manifold through a vacuum line.
Remedy: Dealers will install new fuel pressure regulators with improved diaphragms. The recall will be conducted in phased mailings. Phase 1 began on June 30, 2004, and phase 2 began on September 30, 2004.
Fuel system, gasoline › Fuel injection system
A backfire during engine starting can cause breakage of the upper intake manifold.
Remedy: Dealers will update the powertrain control module programming. Until the campaign repair is made, the vehicle hood should be shut whenever starting the vehicle to reduce the chance of personal injury.
NHTSA investigations
Engine compartment fires
Ea02-030 is closed with gmea02-030 is closed with GM?s actions in 03v-473 and 04v-090 recalling approximately 529,000 my 1998-99 c- and h-body vehicles equipped with defective fuel pressure regulators.these vehicles were equipped with plastic intake manifolds that are unable to contain pressures that occur in some backfire events and defective fuel pressure regulators with leaking diaphragms that can provide a…
Frequently asked questions
Which Oldsmobile 88 years have fuel system problems?
By NHTSA complaints, the 1998 (20), 1999 (13), 1996 (10) and 1997 (9) model years. Fuel System complaints make up 12% of all complaints for the 1998.
Is there a recall for Oldsmobile 88 fuel system problems?
Yes — 2 recalls, including 04V-090 (delivery, Feb 24, 2004); 96V-116 (fuel injection system, Jul 1, 1996). Recall repairs are free at authorized dealers; check a specific car with the VIN recall check.
At what mileage do Oldsmobile 88 fuel system problems start?
Across all years, half of the complaints with a recorded mileage happened before about 95,000 miles; 25% happened before 50,000 miles.
What part fails most often?
Owners most often name the delivery (20 mentions), followed by the carburetor system (8).
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.