IllustrationCONSUMER HEARD A LOUD NOISE, AND VEHICLE CAUGHT ON FIRE. THERE WAS LOTS OF SMOKE AND FLAMES UNDER THE HOOD. DEALER NOTIFIED. *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
What owners actually said
164 reportsGM HAS A PLASTIC PLENUM/MANIFOLD ON THEIR CARS THAT BECOME DEFECTIVE AFTER 60 TO 70 THOUSAND MILES. DUE TO THE HEAT THAT THE MANIFOLD IS EXPOSED TO, THE PART WILL THAN LEAK. WHEN THIS PART WAS MADE FROM ALUMINUM IT WOULD NOT CAUSE THESE PROBLEMS. I HAVE REPLACE THIS PART 2 TIMES IN 2 1/2 YEARS. GM WILL NOT HELP WITH THE BIL…
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GM HAS A PLASTIC PLENUM/MANIFOLD ON THEIR CARS THAT BECOME DEFECTIVE AFTER 60 TO 70 THOUSAND MILES. DUE TO THE HEAT THAT THE MANIFOLD IS EXPOSED TO, THE PART WILL THAN LEAK. WHEN THIS PART WAS MADE FROM ALUMINUM IT WOULD NOT CAUSE THESE PROBLEMS. I HAVE REPLACE THIS PART 2 TIMES IN 2 1/2 YEARS. GM WILL NOT HELP WITH THE BILLS BECAUSE I HAVE OVER A HUNDRED THOUSAND MILES. BUT THE PART ONLY HAS 65 THOUSAND MILES ON IT. I HAVE GONE TO 2 AUTO REPAIR SHOPS AND ALL I TELL THEM IS I AM LOSING COOLANT AND THEY KNOW WHAT THE PROBLEM IS. THEY SAID THEY REPLACE THESE OFTEN. THEY REPLACE THESE SO OFTEN THAT NOW THERE IS A AFTER MARKET THAT THIS PART CAN BE PURCHASED FROM. MY HUSBAND IS A MECHANIC AND KNOWS WHAT TO LOOK FOR ON OUR REGULAR MAINTENANCE, AND THAT IS HOW THIS WAS FOUND. IF PEOPLE DON'T CATCH THIS COOLANT LOSS IN TIME THEY COULD BLOW THEIR ENGINE. IF PEOPLE ARE NOT AWARE OF THIS PROBLEM HOW CAN THEY WATCH FOR IT? *LA
LEAKING COOLANT FROM WATER PUMP AND FROM INTAKE MANIFOLD.
THE CONSUMER NOTICED THE INTAKE MANIFOLD HAD A CRACK, WHICH CAUSED FLUIDS TO LEAK OUT. *AK *SCC *JB
1998 OLDSMOBILE 88 LS, ANTI-LOCK BRAKING SYSTEMS, SYSTEM CHECK OPERATIONAL AND NO WARNING LIGHT ON EVERY START UP. BUT AT 70,000 PLUS MILES IN ONE WEEK'S TIMEFRAME, ABS BRAKES INTERMITTENTLY HAVE A HARD GRAB AT THE END OF A COMPLETE STOP AT INTERSECTIONS. BUT THE ABS SYSTEM HAS PROGRESSIVELY WORSE AND ALTERNATES AT ONE OR TWO OF…
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1998 OLDSMOBILE 88 LS, ANTI-LOCK BRAKING SYSTEMS, SYSTEM CHECK OPERATIONAL AND NO WARNING LIGHT ON EVERY START UP. BUT AT 70,000 PLUS MILES IN ONE WEEK'S TIMEFRAME, ABS BRAKES INTERMITTENTLY HAVE A HARD GRAB AT THE END OF A COMPLETE STOP AT INTERSECTIONS. BUT THE ABS SYSTEM HAS PROGRESSIVELY WORSE AND ALTERNATES AT ONE OR TWO OF THE BRAKES, WHETHER IN THE FRONT OR REAR BRAKES, CAUSING A LOUD SOUND. FRONT PADS AND ROTORS ARE NEW WITHIN THE LAST 5,000 MILES AND REAR DRUM BRAKES ARE AT 55% LININGS.*AK
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…
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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. *JB
FRACTURED PLASTIC (!) INTAKE MANIFOLD (UPPER PLENUM) RESULTING IN LOSS OF COOLANT OVER THE COURSE OF ABOUT FOUR WEEKS UNTIL THE PROBLEM WAS FINALLY DIAGNOSED. HAD TO HAVE THIS PROBLEM ANALYZED AND EVENTUALLY REMEDIED AT A COST OF AROUND $700.00 TOTAL. WHY ON EARTH IS THIS CRUCIAL COMPONENT PLASTIC? *JB
INTAKE MANIFOLD FAILED. COOLANT LEAKED INSIDE THE ENGINE. DEALER NOTIFIED. OLDSMOBILE DELTA 88,1988. *AK
WHEN 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
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.