FaultScore

Buick Riviera engine problems

66 of the 439 complaints filed about the Buick Riviera are about the engine — 15% of everything owners reported. The worst model year for it is 1995.

66

Complaints

15%

Share of all complaints

0

Crashes

9

Fires

Engine & Cooling complaints by model year

1985 Riviera 4 6.1%
1987 Riviera 3 4.5%
1990 Riviera 1 1.5%

Median failure at 100,000 miles

1991 Riviera 1 1.5%
1992 Riviera 1 1.5%
1995 Riviera 29 43.9%

Median failure at 80,000 miles

1996 Riviera 12 18.2%

Median failure at 107,500 miles

1997 Riviera 7 10.6%

Median failure at 121,886 miles

1998 Riviera 6 9.1%

Median failure at 161,000 miles

1999 Riviera 2 3.0%

Median failure at 65,025 miles

What owners said

1998 Buick Riviera at 161,000 miles Vancouver, WA

ENGINE

IT STARTED OUT AS A SMALL OIL LEAK, BUT I RECENTLY NOTICED THE LEAK HAS EXPANDED SIGNIFICANTLY. IT'S DIFFICULT TO PINPOINT THE LEAK, BUT AN OIL PAN UNDER THE CAR SHOWS SIGNIFICANT PUDDLING OF OIL. A SEALER/CONDITIONER DOESN'T APPEAR TO HAVE BEEN AFFECTED. WHILE ONLINE, I NOTED THAT THE 3800CC 3.8L ENGINE SEEMS NOTORIOUS FOR THIS PROBLEM, AND OTHER MODELS OF GM CARS APPEAR TO BE SUBJECT TO A RECALL. NOT SO THE BUICK, WHICH TO ME, HAS THE SAME ENGINE. GIVEN THAT IS IS KNOWN NOW, I'M CONCERNED THAT THIS LOW PRODUCTION VEHICLE WAS LEFT OUT OF THE RECALL AND SHOULD BE INCLUDED. PUDDLE OF OIL PHOTO ENCLOSED. THIS CONDITION IS MOST NOTICEABLE WHILE THE VEHICLE IS STATIONARY.

NHTSA complaint #10908561 — an unverified report by a vehicle owner.

1999 Buick Riviera at 130,000 miles Sand Springs, OK

ENGINE

WELL FOR STARTERS THE CAR HAS 131,000 MILES ON IT AND CLEAN INTERIOR. BUT....THE DRIVERS SIDE POWER SEAT INCLINE DOESN'T WORK, THE BLEND BOX OR AN ACTUATOR IS BAD, THE CRUISE CONTROL DOESN'T WORK, AND THE AC COMPRESSOR IS LOCKED UP. BUT.... THE WORST PART IS THE OIL LEAK COMING FROM THE FRONT VALVE COVER. IT IS SPILLING OUT ON MY EXHAUST MANIFOLD AND SMOKES BADLY. I JUST READ GM HAS A RECALL ON ALL THE L67 3.8L SUPERCHARGED MOTORS IN GRAND PRIX AND REGALS AMONGST OTHER MODELS WITH THE 3.8L BUT NOT THE RIVIERAS. CAN THE RIV GET SOME LOVE TOO. I LIKE THE CAR BUT ALL THESE PROBLEMS AND A HIGHWAY SHUDDER AT 65-73.....👎👎😢😢👎👎👎😩😩😩😩😩

NHTSA complaint #10903557 — an unverified report by a vehicle owner.

1998 Buick Riviera at 56,513 miles Colton, CA

ENGINE AND ENGINE COOLING

TL* THE CONTACT OWNS A 1998 BUICK RIVIERA. WHILE ENTERING THE VEHICLE, THE CONTACT NOTICED ENGINE OIL ON THE GROUND UNDER THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE VALVE COVER GASKET FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 15V701000 (ENGINE AND ENGINE COOLING). THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 56,513. UPDATED 04/29/16*LJ

NHTSA complaint #10850080 — an unverified report by a vehicle owner.

1998 Buick Riviera at 56,513 miles Colton, CA

ENGINE

TL* THE CONTACT OWNS A 1998 BUICK RIVIERA. WHILE ENTERING THE VEHICLE, THE CONTACT NOTICED ENGINE OIL ON THE GROUND UNDER THE VEHICLE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE VALVE COVER GASKET FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE VIN WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 15V701000 (ENGINE AND ENGINE COOLING). THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 56,513. UPDATED 04/29/16*LJ

NHTSA complaint #10850080 — an unverified report by a vehicle owner.

1998 Buick Riviera at 170,000 miles Macomb, MI Fire

ENGINE

TL* THE CONTACT OWNS A 1998 BUICK RIVIERA. WHILE STOPPED, THE CONTACT NOTICED SMOKE COMING FROM THE ENGINE COMPARTMENT OF THE VEHICLE. THE FAILURE RECURRED ON NUMEROUS OCCASIONS. THE CONTACT WAS A CERTIFIED MECHANIC WHO DIAGNOSED THAT THE VALVE COVER GASKET NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 170,000. UPDATED 04/07/16*LJ

NHTSA complaint #10824487 — an unverified report by a vehicle owner.

1998 Buick Riviera at 300,000 miles Gordonsville, VA

ENGINE

TL* THE CONTACT OWNS A 1998 BUICK RIVIERA. WHILE THE VEHICLE WAS PARKED, THERE WAS A PUDDLE OF OIL DRIPPING NEAR THE ENGINE AREA. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 300,000.

NHTSA complaint #10786262 — an unverified report by a vehicle owner.

1995 Buick Riviera at 96,000 miles Clear Lake, CA

ENGINE

TL* THE CONTACT OWNS A 1995 BUICK RIVIERA. WHILE DRIVING AT 25 MPH, THE VEHICLE STALLED. THE CONTACT WAS ABLE TO RESTART THE VEHICLE. THE TRACTION CONTROL WARNING LIGHT ILLUMINATED. IN ADDITION, THE CONTACT STATED THAT THE VEHICLE LATER FAILED TO START. THE VEHICLE WAS INSPECTED BY AN INDEPENDENT MECHANIC BUT WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE RECURRED ON NUMEROUS OCCASIONS. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 96,000. UPDATED 7/1/15

NHTSA complaint #10713537 — an unverified report by a vehicle owner.

1996 Buick Riviera at 80,000 miles Port Richey, FL

ENGINE

I SMELLED GAS. I OPENED THE HOOD, REMOVED THE ENGINE COVER & FUEL WAS SPRAYING FROM THE PLASTIC FUEL LINE, THE SIZE OF A PINHOLE. I CONTACTED THE DEALER TO ORDER A NEW FUEL LINE AND WAS TOLD THE FUEL LINE PART #25648136 IS DISCONTINUED, AS SOON AS I FIND ONE LEFT SOMEWHERE, I WILL BE TAKING TO AN INDEPENDENT REPAIR SHOP FOR REPAIR. THERE ARE NO RECALLS LISTED ON THIS? A DANGEROUS SITUATION. I WENT INTO VARIOUS AUTO FORUMS ON THE INTERNET & NOTICED THAT SEVERAL OTHER PEOPLE WERE HAVING THE SAME PROBLEM. A PINHOLE LEAK IN THE PLASTIC FUEL LINE. THIS IS THE SECOND TIME I HAVE REPLACED THIS LINE IN THE 4 YEARS I HAVE OWNED THIS CAR WITH 60000 MILES BETWEEN THE LAST TIME THIS HAPPENED AND NOW. GM NEEDS TO OFFER A REDESIGNED REPLACEMENT PART THAT DOESN'T LEAK.

NHTSA complaint #10680980 — an unverified report by a vehicle owner.

1995 Buick Riviera NEW Castle, DE Fire

ENGINE

FOUL SMELL THEN PARKED AND WENT INSIDE MALL CAME BACK CAR HAD BEEN ON FIRE.

NHTSA complaint #10655145 — an unverified report by a vehicle owner.

1995 Buick Riviera at 25,678 miles Columbia, MO

ENGINE

TL* THE CONTACT OWNS A 1995 BUICK RIVIERA. THE CONTACT STATED WHILE DRIVING, THE ENGINE STALLED. THE VEHICLE WAS RESTARTED HOWEVER, THE FAILURE RECURRED SEVEN TIMES. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING HOWEVER, THE MECHANIC WAS UNABLE TO DETECT A FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 25,678. THE CONSUMER STATED ON SEVERAL OCCASIONS, HE EXPERIENCED SUDDEN LOSS OF POWER WHILE IN TRAFFIC. ON EACH OCCASION, THERE WAS A LOSS POWER BRAKES. IN APRIL 2013, THERE WERE FOUR INSTANCES WHERE THE VEHICLE TURNED OFF AND THE BRAKES AND POWER STEERING FAILED. THE VEHICLE WAS TOWED TO THE DEALER. A YEAR LATER, THE SAME ISSUE OCCURRED AGAIN. THE DEALER WAS UNABLE TO FIND A PROBLEM.

NHTSA complaint #10620930 — an unverified report by a vehicle owner.

1995 Buick Riviera Phoenix, AZ

ENGINE AND ENGINE COOLING

THIS IS AN INTERMITTENT ISSUE AND HAS BEEN OCCURRING AT DIFFERENT TIMES SINCE PURCHASE IN 1999. WHILE DRIVING ENGINE STALLS AND I LOSE POWER STEERING CONTROL. EXPERIENCING LONG CRANKS BEFORE ENGINE WILL START. HOWEVER, ENGINE EVENTUALLY RESTARTS BUT ENGINE STALLS AGAIN SEVERAL TIMES BEFORE CAR WILL RUN WITHOUT INCIDENT FOR A BRIEF PERIOD. HAVE HAD NUMEROUS REPAIRS DONE ON THIS CAR REGARDING THIS ISSUE SUCH AS IGNITION MODULE. HAD REPAIRS DONE IN OCTOBER 2013 WHERE CRANK SHAFT POSITION SENSOR, MASS AIR FLOW SENSOR, CYLINDER AND KEY WERE REPLACED. IN APRIL 2014 BEGAN EXPERIENCING SAME ISSUE AGAIN.

NHTSA complaint #10597796 — an unverified report by a vehicle owner.

1995 Buick Riviera at 35,000 miles Tarpon Springs,, FL

ENGINE

THE INFO ABOVE IS APPROX. YOUR RECALL OF GM CARS WITH RE: TO IGNITION PROBLEMS MAY NOT BE BROAD ENOUGH. I TRADED IN MY 95 RIVIERA IN APRIL OF 2007 AFTER PLOWING $1500 INTO AND STILL NO SATISFACTORY REPAIR ON WHY IT WAS STALLING. THE LAST STALL WAS IN A THREE WAY INTERSECTION IN CHICAGO. EACH TIME IT STALLED I LOST POWER STEERING. I DON'T RECALL IF THE DEALER LOOKED AT IGNITION ISSUES. I DO RECALL THAT THEY WERE AT ONE POINT FOCUSED ON THE CARBURETOR. IT WAS BEING SERVICED BY A DEALER IN SCHAUMBERG, ILL. SORRY I DON'T HAVE BETTER RECALL OF DETAILS. ONCE I TRADED THE CAR, I TOSSED THE DOCUMENTATION. THE LAST STALL WAS SCARY AND THE REASON I TRADED THE CAR.

NHTSA complaint #10569453 — an unverified report by a vehicle owner.

1995 Buick Riviera at 110,000 miles Lebanon, OH

ENGINE

TL* THE CONTACT OWNS A 1995 BUICK RIVIERA. THE CONTACT STATED THAT WHILE DRIVING 55 MPH THE VEHICLE STALLED. THE FAILURE RECURRED NUMEROUS TIMES. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO INFORMED THE CONTACT OF A RECALL. THE VEHICLE WAS TAKEN TO A DEALER WHO DIAGNOSED THAT THE POWER CONTROL MODULE NEEDED TO BE REPLACED AND THAT THE VEHICLE WAS NOT PART OF ANY RECALL. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE WHO DID NOT OFFER ANY ASSISTANCE. THE FAILURE AND CURRENT MILEAGE WAS 110,000. UPDATED 10/24/12 *CN THE CONSUMER STATED THE VEHICLE OFTEN STALLED WHEN COASTING DOWN HILL OR TO A STOP. UPDATED 11/13/2012

NHTSA complaint #10472587 — an unverified report by a vehicle owner.

1997 Buick Riviera at 170,000 miles Saint Cloud, FL

ENGINE AND ENGINE COOLING

TL* THE CONTACT OWNS A 1997 BUICK RIVIERA. THE CONTACT STATED THE VEHICLE WAS PARKED WHEN HE NOTICED THERE WAS A PUDDLE OF OIL ON THE ENGINE DUE TO AN OIL LEAK FROM THE VALVE COVERS. THE CONTACT REFERENCED NHTSA CAMPAIGN ID NUMBER: 08V118000 (ENGINE AND ENGINE COOLING) BUT DID NOT CONFIRM IF THE VEHICLE WAS INCLUDED IN THE RECALL. THE VEHICLE WAS NOT TAKEN TO HAVE THE FAILURE DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 170,000.

NHTSA complaint #10406811 — an unverified report by a vehicle owner.

1997 Buick Riviera at 150,000 miles Lone Wolf, OK

ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

VEHICLE - 1997 BUICK RIVERIA 3.8 L SUPERCHARGED ENGINE -- OIL LEAK FROM FRONT VALVE COVER GASKET -- RECALL JUST RELEASED FOR 1997-2003 BUICK REGAL AND GRAND PRIX BUT LEFT THE RIVERIA OUT OF THE RECALL LIST FOR THE EXACT SAME ENGINE --- I REPLACED THE GASKET MYSELF (VERY EXPENSIVE GASKET) - 11/05 -- AND FEEL THAT GM SHOULD AT LEAST REIMBURSE ME FOR THE GASKET ---.

NHTSA complaint #10221447 — an unverified report by a vehicle owner.

1997 Buick Riviera Columbus, OH

ENGINE AND ENGINE COOLING

GM HAS RECALLED 1997-2002 PONTIAC GRAND PRIX AND BUICK REGALS WIT THE 3.8 LITER SUPERCHARGED V-6 ENGINES FOR OIL LEAKING AND BURNING ON THE EXHAUST MANIFOLD CAUSING SOME 267 KNOWN FIRES. I HAVE A 1997 BUICK RIVIERA 3.8 LITER SUPERCHARGED ENGINE WHICH HAS BEGUN DOING THE SAME THING RECENTLY. I HAVE NOT SEEN THE RIVIERA INCLUDED IN ANY WEB SEARCH BUT I AM SURE GM IS TRYING TO GET BY WITHOUT REPAIRING AS MANY 3.8 SUPERCHARGED AS POSSIBLE.

NHTSA complaint #10221494 — an unverified report by a vehicle owner.

1997 Buick Riviera Columbus, OH

ENGINE AND ENGINE COOLING:ENGINE

GM HAS RECALLED 1997-2002 PONTIAC GRAND PRIX AND BUICK REGALS WIT THE 3.8 LITER SUPERCHARGED V-6 ENGINES FOR OIL LEAKING AND BURNING ON THE EXHAUST MANIFOLD CAUSING SOME 267 KNOWN FIRES. I HAVE A 1997 BUICK RIVIERA 3.8 LITER SUPERCHARGED ENGINE WHICH HAS BEGUN DOING THE SAME THING RECENTLY. I HAVE NOT SEEN THE RIVIERA INCLUDED IN ANY WEB SEARCH BUT I AM SURE GM IS TRYING TO GET BY WITHOUT REPAIRING AS MANY 3.8 SUPERCHARGED AS POSSIBLE.

NHTSA complaint #10221494 — an unverified report by a vehicle owner.

1995 Buick Riviera at 55,000 miles Brooklyn, NY

ENGINE AND ENGINE COOLING:ENGINE

TL*THE CONTACT OWNS A 1995 BUICK RIVIERA. AT 50 MPH THE VEHICLE SHUT OFF COMPLETELY AND HAD TO BE RESTARTED. THE VEHICLE WAS TAKEN TO A MECHANIC, BUT THE STALLING COULD NOT BE DUPLICATED. THE FAILURE MILEAGE WAS 55,000.*AK UPDATED 04/12/07.

NHTSA complaint #10186495 — an unverified report by a vehicle owner.

1995 Buick Riviera at 147,000 miles Mentor, OH

ENGINE AND ENGINE COOLING

DT*: THE CONTACT STATED THE VEHICLE WAS OVERHEATING AND THE WARNING LIGHT INDICATING THE COOLANT NEEDED TO BE REPLACED WAS ILLUMINATED. THE COOLANT WAS REPLACED, BUT THE PROBLEM CONTINUED. AN INDEPENDENT REPAIR SHOP DETERMINED THERE WAS A LEAK INTO UPPER PLENUM AND UPPER MANIFOLD. THE GASKETS WERE REPLACED AND THE MANIFOLD WAS CLEANED. THE PROBLEM RETURNED A YEAR LATER, THE MECHANIC DETERMINED THE SAME PROBLEM OCCURRED. THE SAME REPAIRS WERE MADE AS WELL AS VALVES AND ADAPTERS WERE REPLACED. THE PROBLEM RETURNED AND THE VEHICLE WAS TAKEN TO THE SAME REPAIR SHOP.

NHTSA complaint #10171097 — an unverified report by a vehicle owner.

1997 Buick Riviera at 54,000 miles Ponca City, OK

ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

1997 BUICK RIVERA ... DRIVING DOWN HIGHWAY-HOLE WORN INTO HIGH PRESSURE FREON DISCHARGE HOSE-FREON SPRAYED THROUGHOUT ENGINE COMPARTMENT AND ONTO DRIVE BELTS-BELT BROKE AND WRAPPED AROUND HARMONIC BALANCER - BROKE TEETH AND CRANK SENSOR- ENGINE DIED IMMEDIATELY-LOSS OF POWER STEERING, BRAKING, ETC., DEAD CAR HARD TO CONTROL - TOWED TO GM DEALER - DEALER REPLACED ALL PARTS ($900.00) - GM MECHANICS AND SERVICE MANAGER ALL AGREED TO BUICK DESIGN FLAW - STEEL MANIFOLD FOR FREON HOSES IS FORMED IN SUCH A WAY TO CAUSE FREON HOSES TO RUB AGAINST EACH OTHER AND EVENTUALLY WEAR A HOLE INTO FREON HOSE. - I KEPT PART - CALLED DEALER TO COMPLAIN- THEY REFERRED ME TO BUICK CUSTOMER SERVICE- THEY SAID THEY COULD DO NOTHING AS NO RECALLS NOR SERVICE BULLETINS HAD BEEN ISSUED ON THE MATTER - I ASKED FOR INFORMATION AS TO HOW MANY OF THESE INCIDENTS HAD OCCURRED - OR HOW MANY OF THIS FREON MANIFOLD REPLACEMENTS HAVE BEEN SOLD - OR IF THERE HAD BEEN A REDESIGN TO CORRECT THIS PART - THEY WOULD FURNISH ME WITH NONE OF THIS REQUESTED INFORMATION.

NHTSA complaint #10105736 — an unverified report by a vehicle owner.

Other Buick Riviera problems