The 1998 Intrigue with the 3.5L Shortstar V6 was GM's attempt at a premium midsize sedan, but it suffers from catastrophic engine failures and transmission cooling issues that can total the car. These aren't minor fixes—they're rebuild-or-scrap decisions.
Lower Intake Manifold Gasket Failure Leading to Coolant in Oil
Common · high severity
Typical onset: 60,000-100,000 mi
Symptoms: white milky residue on oil cap or dipstick, external coolant leaks at rear of engine, overheating, rough idle or misfire, coolant loss with no visible external leak
Fix: Upper plenum removal, lower intake gasket set replacement, coolant flush. If coolant mixed with oil for any length of time, expect bearing damage requiring full teardown. 6-8 hours labor for gaskets alone, 25-35 hours for short block if bearings are scored.
Estimated cost: $800-1,200 for gaskets only; $3,500-5,500 for short block replacement
Connecting Rod Bearing Failure (Shortstar V6 Design Flaw)
Occasional · high severity
Typical onset: 80,000-140,000 mi
Symptoms: metallic knocking from bottom end, worse under load, sudden loss of oil pressure, rod thrown through block in severe cases, metal shavings in oil during changes
Fix: The Shortstar has marginal oiling to rod bearings, especially #2 and #5. Once knocking starts, it's over—needs full engine rebuild or replacement. 22-30 hours for rebuild with machine work, or 12-16 hours for used engine swap.
Estimated cost: $3,000-5,000 rebuild; $1,800-2,800 used engine swap
Transmission Oil Cooler Line Failure at Radiator
Common · high severity
Typical onset: 70,000-120,000 mi
Symptoms: transmission fluid in coolant reservoir (strawberry milkshake appearance), transmission slipping or harsh shifts, overheating, pink fluid pooling under car
Fix: Steel cooler lines rust at radiator crimp connections. When they leak internally, coolant contaminates transmission fluid, destroying clutch packs within days. Requires radiator replacement, both cooler lines, full trans flush or rebuild if contamination occurred. 4-5 hours for lines and radiator; add 12-18 hours if trans needs rebuild.
Estimated cost: $600-900 preventive; $2,200-3,500 if transmission damaged
Rack and Pinion Leaking (Inner Tie Rod Seals)
Common · medium severity
Typical onset: 80,000-130,000 mi
Symptoms: power steering fluid leak at inner bellows, steering wheel hard to turn when cold, groaning noise on full lock, fluid on inside of front tires
Fix: Inner tie rod seals fail, allowing fluid to seep into boots. Rack replacement is typical—rebuilds don't hold. 3.5-4.5 hours labor including alignment.
Estimated cost: $650-950
Ignition Control Module Failure (3.5L)
Occasional · medium severity
Symptoms: no-start when hot, starts fine when cool, stalling after highway driving, random misfire codes across multiple cylinders, crank but no spark
Fix: ICM mounted under coil packs heat-soaks and fails. Testing requires monitoring with scan tool during failure. 1.5-2 hours to replace module and retest.
Estimated cost: $250-400
Transmission Mount Collapse
Common · low severity
Typical onset: 60,000-100,000 mi
Symptoms: clunk when shifting from Park to Drive, excessive engine movement on acceleration, vibration at idle in gear, visible sag of powertrain
Fix: Hydraulic transmission mount fails, allowing severe drivetrain movement. Replace mount—aftermarket units acceptable. 1-1.5 hours.
Estimated cost: $180-280
Owner tips
Change coolant every 30k and inspect lower intake gasket area religiously—catching it early saves the engine
Install external transmission cooler and replace cooler lines proactively at 70k miles to avoid the milkshake of death
Use 5W-30 synthetic and 5,000-mile oil changes—the Shortstar's oiling system has no margin for error
Budget $500/year for surprise repairs after 100k miles; these cars nickel-and-dime you after the big failures
Hard pass unless free—the Shortstar engine is a ticking time bomb, and when it grenades, the car is worth less than the repair bill.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
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General Motors LLC (GM) is recalling certain model year 1998-1999 Chevrolet Lumina and Oldsmobile Intrigue, 1997-2004 Buick Regal and Pontiac Grand Prix, 2000-2004 Chevrolet Impala, and 1998-2004 Chevrolet Monte Carlo vehicles. The affected vehicles were previously repaired under recalls 08V-118, 09V-116, and 15V-201 to address the possibility that engine oil may drip onto the hot exhaust manifold.
Consequence: Engine oil that drips onto the hot surface of the exhaust manifold may result in a fire.
Remedy: The remedy applied under recalls 08V-118, 09V-116, and 15V-201 did not adequately remove the safety risk. Under the improved remedy, dealers will replace the engines front valve cover and gasket. Vehicles that are covered by recalls 08V-118, 09V-116, or 15V-201 that have not yet received the original remedy will instead receive the improved remedy under the original recall number. The recall began on February 19, 2016. Owners may contact Chevrolet customer service at 1-800-222-1020, Buick customer service at 1-800-521-7300, Oldsmobile customer service at 1-800-442-6537 and Pontiac customer service at 1-800-458-8006. GM's number for this recall is 15757. Note: Until the improved remedy has been applied, owners are advised to park their vehicle outside since the fire risk exists even when the vehicle is unattended.
ELECTRICAL SYSTEM:IGNITION · 14V400000
2014-07-03
This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring.
General Motors LLC (GM) notified the agency on July 3, 2014, that they are recalling 5,877,718 model year 2000-2005 Chevrolet Impala and Monte Carlo, 1997-2003 Chevrolet Malibu, 2004-2005 Malibu Classic, 1999-2004 Oldsmobile Alero, 1998-2002 Oldsmobile Intrigue, 1999-2005 Pontiac Grand Am and 2004-2008 Pontiac Grand Prix vehicles. In these models, the weight on the key ring and/or road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine.
Consequence: If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a crash, increasing the risk of injury.
Remedy: GM will notify owners, and dealers will install two key rings and an insert in the key slot or a cover over the key head on all ignition keys, free of charge. The recall began on September 9, 2014. GM's number for this recall is 14350.
ENGINE AND ENGINE COOLING · 09V116000
2009-04-08 · EA07008
GENERAL MOTORS IS RECALLING 1,497,516 MY 1997-2003 BUICK REGAL, MY 1998-2003 CHEVROLET LUMINA, MONTE CARLO AND IMPALA, MY 1998-1999 OLDSMOBILE INTRIGUE, MY 1997-2003 PONTIAC GRAND PRIX VEHICLES EQUIPPED WITH A 3.8L V6 NATURALLY ASPIRATED ENGINE. SOME OF THESE VEHICLES HAVE A CONDITION IN WHICH DROPS OF ENGINE OIL MAY BE DEPOSITED ON THE EXHAUST MANIFOLD THROUGH HARD BRAKING.
Consequence: IF THE MANIFOLD IS HOT ENOUGH AND THE OIL RUNS BELOW THE HEAT SHIELD, IT MAY IGNITE INTO A SMALL FLAME AND MAY SPREAD TO THE PLASTIC SPARK PLUG WIRE CHANNEL AND BEYOND INCREASING THE RISK OF AN ENGINE COMPARTMENT FIRE.
Remedy: DEALERS WILL REPLACE THE ENGINES FRONT VALVE COVER AND FRONT-VALVE-COVER GASKET WITH NEW PARTS OF AN IMPROVED DESIGN AND REMOVE THE ENGINES PLASTIC COVER AND PLASTIC OIL-FILL-TUBE EXTENSION, FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN DURING MAY 2016. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, OLDSMOBILE AT 1-800-630-6537, AND PONTIAC AT 1-800-620-7668 OR HTTP://WWW.PONTIAC.COM OR HTTP:WWW.GMOWNERCENTER.COM.
STEERING · 09E005000
2009-02-17
DORMAN IS RECALLING 979 STEERING KNUCKLES, DORMAN P/NOS. 697-902 AND 697-903, SOLD UNDER DORMAN'S "OE SOLUTIONS<SUP>TM</SUP>" BRAND NAME, AND NAPA P/NOS. 7-8502 AND 7-8503 WHICH WERE SOLD FOR REPLACEMENT USE ON THE VARIOUS VEHICLES LISTED ABOVE. A POTENTIAL MATERIAL OR DESIGN DEFECT COULD RESULT IN THE STEERING KNUCKLE BREAKING IN THE HUB AREA.
Consequence: A BROKEN STEERING KNUCKLE COULD RESULT IN LOSS OF STEERING CONTROL AND A POSSIBLE CRASH WITHOUT WARNING.
Remedy: DORMAN WILL NOTIFY OWNERS AND REPLACE THE DEFECTIVE STEERING KNUCKLES FREE OF CHARGE AND REIMBURSE THE REPAIR FACILITY OR OWNER FOR LABOR. THE RECALL BEGAN ON FEBRUARY 23, 2009. OWNERS MAY CONTACT DORMAN'S TOLL-FREE HOTLINE AT 1-800-523-2492 AND PRESS 5.
STEERING · 08E063000
2008-10-17
DORMAN PRODUCTS IS RECALLING 3,900 INTERMEDIATE STEERING SHAFTS DORMAN PART NOS. 425-151, 425-152, AND 425-153, (SOLD UNDER DORMAN'S "OE SOLUTIONS" BRAND NAME), BALKAMP #'S 7-3057, 7-3058, 7-3059 (SOLD UNDER THE "NAPA" BRAND NAME), AND PLATINUM PARTS #'S 2425151, 2425152, AND 2425153 MANUFACTURED DURING THE MONTH OF SEPTEMBER 2007. THESE REPLACEMENT STEERING SHAFTS CAN BE USED ON THE VEHICLES LISTED ABOVE. THE WELD CONNECTING THE INNER TUBE TO THE OUTER TUBE MAY BE DEFECTIVE.
Consequence: IF THE WELD FAILS, LOSS OF STEERING COULD RESULT, POSSIBLY RESULTING IN A VEHICLE CRASH.
Remedy: DORMAN WILL NOTIFY OWNERS AND REPLACE THE STEERING SHAFTS FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 16, 2008. OWNERS MAY CONTACT DORMAN TOLL FREE AT 1-800-523-2492.
STEERING:RACK AND PINION · 03V527000
2003-12-11 · EA03019
CERTAIN PASSENGER VEHICLES HAVE LOWER PINION BEARINGS IN THE POWER RACK AND PINION ASSEMBLY IN WHICH THE RETAINER TABS WERE NOT CRIMPED PROPERLY. THESE RETAINERS COULD FAIL AND PERMIT THE BALL BEARINGS TO ESCAPE.
Consequence: IF THIS OCCURS, THE PINION SHAFT CAN BE FORCED UPWARD DURING LEFT TURNS AND BACK DOWN AS THE STEERING WHEEL IS MOVED BACK AND TO THE RIGHT. IF THE PINION SHAFT MOVES FURTHER, THE DRIVER WILL NEED TO EXERT MORE EFFORT TO TURN THE STEERING WHEEL, SIMILAR TO A VEHICLE WITHOUT POWER ASSISTED STEERING. IF THE PINION SHAFT MOVES EVEN FURTHER, THE DRIVER WILL REQUIRE MUCH HIGHER EFFORT TO TURN LEFT AND MAY NOT BE ABLE TO TURN THE WHEEL AS MUCH AS INTENDED. WITH THE MAXIMUM PINION SHAFT MOVEMENT, WHICH REQUIRES INTERNAL GEAR COMPONENT DAMAGE, THE DRIVER CAN ENCOUNTER HIGH RESISTANCE TO TURNING LEFT, FOLLOWED BY UNINTENDED POWER ASSIST TO THE RIGHT. IN ANY OF THESE CONDITIONS, A CRASH COULD OCCUR.
Remedy: DEALERS WILL INSTALL A NEW LOWER PINION BEARING UNLESS INSPECT OF THE EXISTING BEARING INDICATES THAT REPLACEMENT OF THE GEAR ASSEMBLY IS NECESSARY. OWNER NOTIFICATION BEGAN ON FEBRUARY 5, 2004. OWNERS SHOULD CONTACT BUICK AT 1-866-608-8080; CHEVROLET AT 1-800-630-2438; OLDSMOBILE AT 1-800-630-6537; OR PONTIAC AT 1-800-620-7668.
SEAT BELTS · 00V044000
2000-02-16 · EA99019
VEHICLE DESCRIPTION: PASSENGER VEHICLES. SOME OF THESE VEHICLES WERE BUILT WITH REAR SEAT SHOULDER BELTS THAT COULD TWIST, ALLOWING THE WEBBING TO BE JAMMED IN THE RETRACTOR. WHEN THE SHOULDER BELT WEBBING BECOMES JAMMED IN THE RETRACTOR, THE SEAT BELT BECOMES UNUSABLE.
Consequence: THIS COULD PREVENT A PERSON FROM USING THE SEAT BELT SYSTEM, AND A RISK OF INJURY TO AN UNBELTED PERSON IN A CRASH WOULD BE INCREASED.
Remedy: DEALERS WILL REMOVE ANY TWISTS FROM THE REAR SHOULDER BELT(S) AND INSTALL CLIPS TO THE BELT WEB GUIDE TO PREVENT TWISTING.
EXTERIOR LIGHTING:HEADLIGHTS · 98V103000
1998-05-18
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE OWNER MANUALS DO NOT CONTAIN THE REQUIREMENT INFORMATION PERTAINING TO THE VEHICLE HEADLAMP AIMING DEVICE. THIS DOES NOT COMPLY WITH REQUIREMENTS OF FMVSS NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."
Consequence: IF THE HEADLAMP ASSEMBLIES ARE REPLACED, CUSTOMERS MAY NOT BE ABLE TO PROPERLY AIM THE HEADLIGHTS.
Remedy: OWNERS WILL BE MAILED AN OWNER MANUAL'S INSERT WHICH CONTAINS THE APPROPRIATE INFORMATION.
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