IllustrationINTAKE MANIFOLD FAILED. COOLANT LEAKED INSIDE THE ENGINE. DEALER NOTIFIED. OLDSMOBILE DELTA 88,1988. *AK
1998 Oldsmobile 88
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all 88 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
20–25K
1125–50K
2350–75K
1575–100K
9100–150K
2150K+
62 reports with mileage · 102 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Engine And Engine Cooling. Review the 76 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes, Hydraulic. Review the 18 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel System, Gasoline. Review the 16 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
9 crash reports13 fire reports5 injury reports
Engine And Engine Cooling complaints
76 reportsWHEN STARTING THE VEHICLE, THE INTAKE MANIFOLD HAD BLEWOUT AND CAUSED THE VEHICLE TO BE NON DRIVABLE. THE DEALER WAS NOTIFIED. *AK *SCC *JB THE "EXPLOSION" WOKE UP THE NEIGHBORS. THERE WAS SMOKE BUT NO FIRE. BBY
COOLANT LEAK INTO ENGINE CAUSED CAR TO RUN EXTREMELY ROUGH TO THE POINT OF HAVING TO STOP. THE CAR WOULD NOT RESTART. HAD IT TOWED TO A REPAIR SHOP. THE ENGINE HAD SEIZED DUE TO COOLANT LEAK RESULTING IN DAMAGE TO THE HEAD GASKETS. THE HEAD GASKETS ALONG WITH THE UPPED PLENUM HAD TO BE REPLACED AT A COST OF $1100. AFTER RESEARCH…
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COOLANT LEAK INTO ENGINE CAUSED CAR TO RUN EXTREMELY ROUGH TO THE POINT OF HAVING TO STOP. THE CAR WOULD NOT RESTART. HAD IT TOWED TO A REPAIR SHOP. THE ENGINE HAD SEIZED DUE TO COOLANT LEAK RESULTING IN DAMAGE TO THE HEAD GASKETS. THE HEAD GASKETS ALONG WITH THE UPPED PLENUM HAD TO BE REPLACED AT A COST OF $1100. AFTER RESEARCH ON YOUR SIGHT, I FOUND THIS PROBLEM ON SEVERAL OTHER 1998 OLDS 88 CARS. I ALSO FOUND THAT A TECHNICAL BULLETIN HAD BEEN ISSUED TO DEALERS ABOUT THIS PROBLEM. WHY WASN'T THIS PROBLEM WITH THE UPPER PLENUM THAT IS REFERENCED IN THE TECHNICAL BULLETIN SENT TO OWNERS OF THESE VEHICLES. I FOUND THE MANY OTHER MODEL OF GM CARS ALSO USE THE 3800 ENGINE WITH A PLASTIC UPPER PLENUM THAT CAN CRACK OVER TIME FROM EXCESSIVE HEAT.*AK
CAR WAS RUNNING ROUGH, ESP. ON STARTING. MADE APPOINTMENT WITH DEALER WHO COULDN'T LOOK AT IT FOR A WEEK. WE REALIZED IT WAS LOSING COOLANT, BUT THERE WAS NO APPARENT LEAKAGE UNDER THE CAR OR HOOD, ETC. FILLED WITH COOLANT, DROVE APPROX. 4 MILES THEN ENGINE LIGHT CAME ON AND STAYED ON. CHECKED OIL AND IT WAS OVER "FULL". CA…
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CAR WAS RUNNING ROUGH, ESP. ON STARTING. MADE APPOINTMENT WITH DEALER WHO COULDN'T LOOK AT IT FOR A WEEK. WE REALIZED IT WAS LOSING COOLANT, BUT THERE WAS NO APPARENT LEAKAGE UNDER THE CAR OR HOOD, ETC. FILLED WITH COOLANT, DROVE APPROX. 4 MILES THEN ENGINE LIGHT CAME ON AND STAYED ON. CHECKED OIL AND IT WAS OVER "FULL". CALLED THE DEALER BACK WITH THE NEW SYMPTOMS AND WAS TOLD IT WAS A COMMON PROBLEM WITH THIS TYPE OF CAR TO HAVE COOLANT LEAK INTO THE OIL (THEN INTO ENGINE) AND IT PROBABLY NEEDED MANIFOLD WORK $600.--$700. HAD CAR TOWED TO DEALER WHERE THEY FOUND THE MANIFOLD DID NEED TO BE REPLACED. IN RESEARCHING, WE HAVE FOUND THAT THIS IS A COMMON PROBLEM IN 88'S AND SOMETIME RESULTS IN ENGINE FIRES. WE ARE WONDERING WHY THERE HASN'T BEEN A RECALL AND WHY WOULD THE MANUFACTURER USE PLASTIC IN ENGINE PARTS!? *JB
CAR HAS 55,000 MI ON IT, AND THE PLASTIC INTAKE MANIFOLD RESTING ON TOP OF THE ENGINE CRACKED, LEAKING ALL COOLANT INTO THE ENGINE. VEHICLE WAS SHUTDOWN AS SOON AS THE TEMPERATURE CLIMBED TO ABOUT 250 F. PROBLEM WAS FIXED BY REPLACING THE PLASTIC INTAKE MANIFOLD, AND NO OTHER DAMAGE TO THE VEHICLE RESULTED.
WHILE DRIVING THE ENGINE GASKET LEAKED COOLANT WHICH CAUSED THE VEHICLE TO OVERHEAT. THE CONSUMER HAD TO REPLACE THE ENTIRE ENGINE. *AK *CB *NLM
IN FEBRUARY I WENT TO START MY ENGINE IN THE MORNING AND IT BLEW UP. I TURNED THE KEY, NO ENGINE TURNOVER BUT SMOKE COMING FROM UNDER THE HOOD. WHEN I OPENED THE HOOD, FLAMES CAME OUT. THE FIRE DEPT. PUT OUT THE FIRE AND SAID THE CAR WAS TOTALLED. SOME OF THE VINYL SIDING ON MY HOUSE WAS SLIGHTLY MELTED.*AK
LEAK IN COOLANT SYSTEM SPREAD TO THE ENGINE WHICH RESULTED IN THE ENGINE NEEDING TO BE REPLACED. *MR THE ENGINE DEVELOPED A LEAK IN THE COOLING SYSTEM BEFORE IT HAD BECOME OBVIOUS, THE LEAK SPREAD TO THE ENGINE. THE ENGINE WAS REPLACED. THE CONSUMER'S FATHER HAD EXPERIENCED THE SAME PROBLEM WITH A NEW 02 BUICK LESABRE DUE TO…
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LEAK IN COOLANT SYSTEM SPREAD TO THE ENGINE WHICH RESULTED IN THE ENGINE NEEDING TO BE REPLACED. *MR THE ENGINE DEVELOPED A LEAK IN THE COOLING SYSTEM BEFORE IT HAD BECOME OBVIOUS, THE LEAK SPREAD TO THE ENGINE. THE ENGINE WAS REPLACED. THE CONSUMER'S FATHER HAD EXPERIENCED THE SAME PROBLEM WITH A NEW 02 BUICK LESABRE DUE TO THE 3800 ENGINE'S DEFECT THAT CAUSED THE LEAK. (THIS HAPPENED TO THREE OF THEIR BUICK VEHICLE'S) NHTSA ACTION #EA02030 *SCC *JB
THE INTAKE MANIFOLD ON MT 1998 OLDSMOBILE 88 FAILED RECENTLY. THE PLASTIC ON ALUMINUM INTAKE MANIFOLD IS VERY SUSCEPTIBLE TO CORROSION. APPARENTLY MINE FAILED AND ALL THE WATER DRAINED FROM THE ENGINE. THE REPAIR BILL TO GET THE CAR RUNNING AGAIN WAS $1838. I AM TOLD BY SEVERAL PEOPLE THAT THIS IS A COMMON PROBLEM ON GM CARS. …
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THE INTAKE MANIFOLD ON MT 1998 OLDSMOBILE 88 FAILED RECENTLY. THE PLASTIC ON ALUMINUM INTAKE MANIFOLD IS VERY SUSCEPTIBLE TO CORROSION. APPARENTLY MINE FAILED AND ALL THE WATER DRAINED FROM THE ENGINE. THE REPAIR BILL TO GET THE CAR RUNNING AGAIN WAS $1838. I AM TOLD BY SEVERAL PEOPLE THAT THIS IS A COMMON PROBLEM ON GM CARS. BECAUSE OF THE COMMON OCCURANCE OF THIS PROBLEM, I WOULD LIKE TO THINK THAT A RECALL IS IN ORDER. *AK
THE VEHICLE WOULD NOT START BECAUSE THE INTAKE MANIFOLD LEAKED ANTIFREEZE INTO THE CYLINDER. *NLM
Official recalls
104V090000 · Fuel System, Gasoline:delivery
Feb 24, 2004
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. IF THE ENGINE DOES NOT START WHEN CRANKED, THE FUEL FROM THE LEAKING REGULATOR AND A MISTIMED SPARK CAN CAUSE A BACKFIRE.
Consequence & remedy
Consequence: THE BACKFIRE CAN RUPTURE THE INTAKE MANIFOLD. THE RUPTURE OF THE INTAKE MANIFOLD CAN DISPLACE A FUEL LINE, PULLING AN INJECTOR OUT OF PLACE, AND CAUSING A FUEL LEAK AND POSSIBLE FIRE.
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. OWNERS SHOULD CONTACT BUICK AT 1-866-608-8080, OLDSMOBILE AT 1-800-630-6537, OR PONTIAC AT 1-800-620-7668.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1EA02030 · Engine Compartment Fires
Opened Oct 22, 2002 · Closed Mar 9, 2004
Status: closed (inferred from source dates) · Fuel System, Gasoline; Fuel System, Gasoline:delivery; Fuel System, Gasoline:delivery:hoses, Lines/piping, And Fittings
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 SOURCE OF FUEL TO PRODUCE A COMBUSTIBLE AIR-FUEL MIXTURE IN THE MANIFOLD.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY ODI THAT NO SAFETY DEFECT EXISTS IN THE VEHICLES THAT ARE NOT INCLUDED IN GM?S RECALLS.ODI WILL CONTINUE TO MONITOR THE INCIDENCE OF MANIFOLD RUPTURES AND RELATED FIRES IN OTHER MY 1995-2002 GM PASSENGER CARS EQUIPPED WITH THE SUBJECT INTAKE MANIFOLD.FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Additional source detail variants (3)
Fuel System, Gasoline:delivery
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 SOURCE OF FUEL TO PRODUCE A COMBUSTIBLE AIR-FUEL MIXTURE IN THE MANIFOLD.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY ODI THAT NO SAFETY DEFECT EXISTS IN THE VEHICLES THAT ARE NOT INCLUDED IN GM?S RECALLS.ODI WILL CONTINUE TO MONITOR THE INCIDENCE OF MANIFOLD RUPTURES AND RELATED FIRES IN OTHER MY 1995-2002 GM PASSENGER CARS EQUIPPED WITH THE SUBJECT INTAKE MANIFOLD.FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Fuel System, Gasoline:delivery:hoses, Lines/piping, And Fittings
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 SOURCE OF FUEL TO PRODUCE A COMBUSTIBLE AIR-FUEL MIXTURE IN THE MANIFOLD.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY ODI THAT NO SAFETY DEFECT EXISTS IN THE VEHICLES THAT ARE NOT INCLUDED IN GM?S RECALLS.ODI WILL CONTINUE TO MONITOR THE INCIDENCE OF MANIFOLD RUPTURES AND RELATED FIRES IN OTHER MY 1995-2002 GM PASSENGER CARS EQUIPPED WITH THE SUBJECT INTAKE MANIFOLD.FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.
Fuel System, Gasoline
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 SOURCE OF FUEL TO PRODUCE A COMBUSTIBLE AIR-FUEL MIXTURE IN THE MANIFOLD.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY ODI THAT NO SAFETY DEFECT EXISTS IN THE VEHICLES THAT ARE NOT INCLUDED IN GM?S RECALLS.ODI WILL CONTINUE TO MONITOR THE INCIDENCE OF MANIFOLD RUPTURES AND RELATED FIRES IN OTHER MY 1995-2002 GM PASSENGER CARS EQUIPPED WITH THE SUBJECT INTAKE MANIFOLD.FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.