The 2000 Intrigue with the 3.5L V6 (LX5) is notorious for catastrophic upper engine failures due to intake manifold gasket coolant leaks that lead to internal damage. Transmission cooler line failures are also a platform-wide headache that can destroy the transmission if not caught early.
Upper Intake Manifold Gasket Failure Leading to Engine Damage
Common · high severity
Typical onset: 60,000-120,000 mi
Symptoms: Coolant loss with no visible external leaks, White exhaust smoke on cold start, Milky oil on dipstick or oil cap, Engine misfire or rough idle, Catastrophic bearing failure if coolant mixes with oil for extended period
Fix: The Dex-Cool coolant eats the plastic intake gaskets, dumping coolant into cylinders or crankcase. If caught early (gasket only): 6-8 hours labor. If coolant contaminated the oil and you drove it: expect complete engine rebuild or replacement (shortblock, pistons, bearings, heads). This is THE killer on these engines.
Estimated cost: $800-1,200 (gasket only) or $3,500-6,500 (engine rebuild/replacement)
Transmission Oil Cooler Line Failure at Radiator
Common · high severity
Typical onset: 80,000-140,000 mi
Symptoms: Pink milkshake in coolant reservoir (trans fluid mixed with coolant), Transmission slipping or delayed engagement, Coolant in transmission pan, Transmission failure shortly after coolant contamination
Fix: The factory crimped cooler lines corrode and rupture at the radiator connection, allowing coolant into the transmission. Requires immediate trans fluid flush (multiple times), cooler line replacement, often new radiator. If driven after contamination: transmission rebuild. 4-6 hours for lines/radiator, 12-18 hours for trans rebuild.
Estimated cost: $600-1,000 (lines/flush) or $2,000-3,500 (with transmission rebuild)
Lower Engine Bearing Failure (Secondary to Coolant Contamination)
Occasional · high severity
Typical onset: 70,000-130,000 mi
Symptoms: Knocking or ticking from lower engine, Low oil pressure warning, Metallic debris in oil filter, History of coolant loss or intake gasket issues
Fix: Often a delayed consequence of undetected coolant intrusion. Coolant breaks down oil viscosity, starves bearings. Requires complete lower-end teardown: main bearings, rod bearings, crank polishing or replacement. 18-24 hours for proper rebuild with machine work.
Estimated cost: $3,000-5,500
Ignition System Failures (Coil Packs and ICM)
Common · medium severity
Typical onset: 60,000-100,000 mi
Symptoms: Random misfires on one or more cylinders, Check engine light with P030X codes, Rough idle or hesitation, No-start condition if ICM fails completely
Fix: The coil packs and ignition control module (under the coils) fail frequently. Start by swapping coils between cylinders to confirm. ICM requires removing coil bracket assembly. 2-3 hours for coil pack replacement, 3-4 hours if ICM is also bad.
Estimated cost: $400-800
Transmission Mount Failure (Front/Rear)
Common · low severity
Typical onset: 70,000-120,000 mi
Symptoms: Clunk when shifting from Park to Drive, Excessive vibration at idle in gear, Visible movement of engine/trans under acceleration
Fix: The hydraulic front mount and solid rear mount collapse from age and fluid leaks. Not dangerous but annoying. Front mount is 2-3 hours (requires supporting powertrain), rear is 1.5-2 hours.
Estimated cost: $350-600
Power Steering Pressure Hose Leaks
Occasional · medium severity
Typical onset: 90,000-150,000 mi
Symptoms: Power steering fluid puddles under car, Groaning noise when turning at low speed, Hard steering or loss of assist, Fluid on subframe or inner fender
Fix: High-pressure hose from pump to rack develops pinhole leaks or blows at crimp fittings. Hose runs behind engine, awkward access. 2.5-3.5 hours labor, must flush system after replacement.
Estimated cost: $350-550
Owner tips
Check coolant level religiously and inspect for pink tint in overflow tank — early warning of trans cooler or intake gasket failure
Switch to conventional green coolant after intake gasket replacement; Dex-Cool is the root cause
Replace transmission cooler lines proactively at 100k if original, use stainless braided replacements
Budget for an engine if you're buying high-mileage — many have hidden damage from prior coolant intrusion
Hard pass unless you're getting it for scrap value and can verify clean engine history — the 3.5L is a ticking time bomb after 80k miles.
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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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.
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.
SEAT BELTS · 01V109000
2001-04-06
VEHICLE DESCRIPTION: CERTAIN PASSENGER VEHICLES, EQUIPPED WITH SUNVISOR LOCATED AIR BAG LABELS, FAIL TO CONFORM TO FEDERAL MOTOR VEHICLES SAFETY STANDARD NO. 208, "OCCUPANT CRASH PROTECTION." THESE VEHICLES HAVE A MESSAGE AREA LESS THAN 30 CM WHICH DOES NOT MEET THE REQUIREMENTS OF THE STANDARD.
Consequence: THESE VEHICLES DO NOT COMPLY WITH THE STANDARD.
Remedy: GM WILL MAIL A NEW BILINGUAL AIR BAG LABEL WITH INSTALLATION INSTRUCTIONS. HOWEVER, THE CUSTOMER MAY BRING THE LABEL TO THEIR DEALER FOR INSTALLATION FREE OF CHARGE. OWNER NOTIFICATION BEGAN MAY 4, 2001. OWNERS WHO DO NOT RECEIVE THE FREE LABEL AND INSTALLATION INSTRUCTIONS WITHIN A REASONABLE TIME SHOULD CONTACT OLDSMOBILE AT 1-800-442-6537 OR BUICK AT 1-800-521-7300.
SEAT BELTS · 00V228003
2000-08-07
VEHICLE DESCRIPTION: PASSENGER VEHICLES, LIGHT DUTY TRUCKS, SPORT UTILITY VEHICLES, AND MINI VANS EQUIPPED WITH TRW SEAT BELT BUCKLE ASSEMBLIES. THE BUCKLE BASE OF THESE SEAT BELT ASSEMBLIES WERE NOT PROPERLY HEAT TREATED AND THEREFORE DO NOT PASS THE LOAD BEARING REQUIREMENT OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 209, "SEAT BELT ASSEMBLIES."
Consequence: IN THE EVENT OF A VEHICLE CRASH, THE OCCUPANT MAY NOT BE PROPERLY RESTRAINED.
Remedy: DEALERS WILL INSPECT THE VEHICLE'S SAFETY BELT BUCKLE ASSEMBLY DATE CODES AND, IF NECESSARY, WILL REPLACE ANY SAFETY BELT BUCKLE ASSEMBLY.
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS · 00V114000
2000-04-17
VEHICLE DESCRIPTION: PASSENGER VEHICLES. SOME OF THESE VEHICLES HAVE INTERNAL FLUID LEAKS IN THE BRAKE HYDRAULIC CONTROL UNIT.
Consequence: WHEN THE REAR BRAKE PROPORTIONING, ANTILOCK BRAKE, TRACTION CONTROL, OR STABILITY CONTROL FEATURE IS ACTIVATED IN SOME DRIVING SITUATIONS, THE FEATURE MAY NOT PERFORM AS DESIGNED.
Remedy: DEALERS WILL INSPECT THE ABS HYDRAULIC MODULATOR UNIT AND IF NECESSARY, REPLACE THE HYDRAULIC MODULATOR.
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