The 2004 Grand Prix, particularly with the 3800 Series II 3.8L V6, is a solid platform undermined by GM's 4T65-E automatic transmission issues and a few engine accessory headaches. The rare GTP Comp G with the 5.3L V8 sees fewer transmission problems but brings its own cost structure.
4T65-E Automatic Transmission Failure
Common · high severity
Typical onset: 90,000-150,000 mi
Symptoms: Harsh 1-2 shift or delayed engagement into drive, Slipping between gears, especially 2nd to 3rd, Check engine light with P0730 (incorrect gear ratio) or P0741 (TCC solenoid), Metal shavings in pan during fluid change
Fix: Usually requires full rebuild or reman replacement due to worn clutch packs and pressure control solenoid valve body issues. Independent rebuild runs 12-16 labor hours; reman swap is 8-10 hours. Fluid-only services rarely save a dying unit past 120k.
Estimated cost: $2,200-3,800
Intake Manifold Gasket Failure (3.8L)
Common · medium severity
Typical onset: 80,000-130,000 mi
Symptoms: Coolant seeping externally at front of engine, below throttle body, Slow coolant loss without visible external leak (internal seepage into oil), White residue or chocolate milk appearance on oil cap, Rough idle or misfire if coolant enters cylinders
Fix: Upper and lower intake gaskets both fail; lower is Dex-Cool reactive plastic composite. Replace both with Felpro upgraded metal gaskets. Job requires removing upper plenum, fuel rail, ignition coils. 6-8 labor hours, flush cooling system mandatory.
Estimated cost: $800-1,400
Lower Control Arm Bushing and Ball Joint Wear
Common · medium severity
Typical onset: 70,000-110,000 mi
Symptoms: Clunking over bumps from front suspension, Steering wander or vague on-center feel, Inner tire edge wear on front tires, Popping noise during low-speed turns
Fix: Control arm bushings degrade and ball joints wear, often both sides simultaneously. Most shops replace entire control arm assembly rather than press bushings (labor intensive). Each side roughly 1.5-2 hours; alignment required after. OEM-equivalent quality matters here.
Estimated cost: $600-1,100
Power Steering Pump and Rack Seal Leaks
Occasional · medium severity
Typical onset: 100,000-150,000 mi
Symptoms: Whining or groaning noise during turns, especially cold, Power steering fluid puddles under front of vehicle, Stiff steering at low speeds or after sitting, Burnt smell from fluid leaking onto exhaust
Fix: Pump shaft seals fail first, then rack develops input shaft seal leak. Pump replacement is 2-3 hours; rack replacement is 5-7 hours due to subframe positioning. Lines are also prone to rusting through in salt states—inspect during any PS work.
Ignition Lock Cylinder and Passlock Sensor Failure
Occasional · high severity
Symptoms: Key won't turn in ignition or gets stuck, Security light flashing, car cranks but won't start (Passlock issue), Intermittent no-start requiring 10-minute wait for relearn, Ignition cylinder wobbles or feels loose
Fix: GM's Passlock system triggers theft deterrent mode due to resistor pellet wear in cylinder. Permanent fix requires lock cylinder replacement (2-3 hours, steering column disassembly) or Passlock bypass module installation. Temporary 10-minute relearn procedure works until next failure.
Estimated cost: $350-700
Serpentine Belt Tensioner and Idler Pulley Seizure
Occasional · high severity
Typical onset: 90,000-140,000 mi
Symptoms: Squealing on cold start that persists after warmup, Chirping or grinding from front of engine, Battery light or overheating due to belt coming off, Visible wobble in tensioner arm or pulley
Fix: Spring-loaded tensioner arm bearing fails, idler pulley seizes. If belt shreds, alternator and water pump stop. Replace tensioner assembly and both idler pulleys as preventive set. 1.5-2 hours labor. Inspect water pump while you're there—same belt drives it.
Estimated cost: $250-450
Window Regulator Failure
Occasional · low severity
Typical onset: 80,000-120,000 mi
Symptoms: Window drops into door or won't raise, Grinding or clicking noise when operating window, Window tilts or binds in track, One-touch auto-down works but manual up fails
Fix: Plastic regulator gears strip or cables fray. Dorman offers affordable replacement assemblies; OEM units are discontinued for some positions. 1.5-2 hours per door including door panel R&R. Driver's side fails first due to use frequency.
Estimated cost: $200-400
Owner tips
Change transmission fluid every 50k with full filter and pan service—many '04s still have original fluid at 100k+, which accelerates clutch wear
Flush coolant by 60k and switch to universal coolant; Dex-Cool eats intake gaskets on these 3800s
Inspect frame rails for rust perforation if northern car—recall 14V432 covered corrosion, but coverage expired
If Passlock acts up, carry a bypass resistor kit in the car or budget for permanent fix—getting stranded is near-certain otherwise
Buy the 3.8L if transmission has been rebuilt or shows solid shift quality with recent fluid; skip any unit with deferred cooling system maintenance or high-mileage original trans.
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.
ENGINE AND ENGINE COOLING:ENGINE · 15V201000
2015-04-06
General Motors LLC (GM) notified the agency on April 2, 2015, that they are is recalling certain model year 2004 Buick Regal vehicles manufactured April 9, 2003, to June 1, 2003, 2004 Chevrolet Impala vehicles manufactured April 8, 2003, to June 23, 2003, and 2004 Chevrolet Monte Carlo vehicles manufactured April 7, 2003, to June 23, 2003. On May 18, 2015, GM expanded the recall to cover an additional 49,751 2004 Pontiac Grand Prix vehicles manufactured January 6, 2003, to June 25, 2004. In the affected vehicles, the valve cover gasket may leak.
Consequence: The leaking engine oil can drip onto the hot surface of the exhaust manifold, increasing the risk of a fire.
Remedy: GM will notify owners, and dealers will remove the plastic cover and plastic oil fill tube extension and replace the front valve cover and gasket. These repairs will be done free of charge. The recall began on April 24, 2015. Owners may contact Buick customer service at 1-800-521-7300, Pontiac customer service at 1-800-762-2737 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 14574.
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.
EXTERIOR LIGHTING:HEADLIGHTS · 09E025000
2009-05-11
DOPE, INC. IS RECALLING 42,540 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.
Consequence: DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.
Remedy: DOPE, INC. WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE SAFETY RECALL BEGAN ON JULY 28, 2009. OWNERS MAY CONTACT DOPE, INC. AT 1-626-272-1798.
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.
CERTAIN PASSENGER VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 124, 'ACCELERATOR CONTROL SYSTEMS.' IF ONE OF THE TWO ACCELERATOR PEDAL RETURN SPRINGS FAILS AND THE TEMPERATURE IS -22 DEGREES F TO -40 DEGREES F, THE ENGINE MAY NOT RETURN TO IDLE WITHIN THREE SECONDS, AS REQUIRED.
Consequence: IF THIS WERE TO OCCUR, GREATER BRAKE PEDAL FORCE AND A LONGER DISTANCE MAY BE REQUIRED TO STOP THE VEHICLE.
Remedy: DEALERS WILL REPLACE THE ACCELERATOR PEDAL ASSEMBLY. THIS RECALL BEGAN ON MARCH 8, 2005. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339 OR PONTIAC AT 1-800-620-7668.
SERVICE BRAKES, HYDRAULIC · 04V287000
2004-06-23
CERTAIN PASSENGER VEHICLES WERE PRODUCED WITH LOWER THAN SPECIFIED TORQUE ON BOTH FRONT BRAKE CALIPER TO STEERING KNUCKLE ATTACHMENT BOLTS. WITH IMPROPER TORQUE, THE CLAMP LOAD AT THE JOINT MAY NOT BE ADEQUATE TO PREVENT MOVEMENT BETWEEN THE CALIPER BRACKET AND KNUCKLE.
Consequence: DEPENDING ON WHETHER ONE OR BOTH BOLTS BACKS OUT OR FRACTURES, THE RESULT CAN BE LOCKING OF THE AFFECTED WHEEL DURING BRAKING AND AN ABRUPT STEERING INPUT IN THE DIRECTION OF THE LOCKED WHEEL, REDUCED BRAKING AND NOISE FROM THE AFFECTED WHEEL, OR SEVERING OF A BRAKE HOSE, INCREASED BRAKE PEDAL TRAVEL, AND REDUCED STEERING CONTROL. REDUCED BRAKING OR STEERING CONTROL COULD CAUSE A CRASH.
Remedy: DEALERS ARE TO TIGHTEN BOTH BOLTS TO THE SPECIFIED TORQUE. OWNER NOTIFICATION BEGAN ON JUNE 28, 2004. OWNERS SHOULD CONTACT CHEVROLET 1-800-630-2438 OR PONTIAC 1-800-620-7668.
STRUCTURE:FRAME AND MEMBERS · 04V299000
2004-06-23
CERTAIN PASSENGER VEHICLES HAVE A CONDITION WHERE THE FRONT FRAME REAR BODY MOUNT BRACKET MAY FRACTURE.
Consequence: IF IGNORED, THE BRACKET WOULD FRACTURE AND DEGRADE TO THE POINT WHERE THE INTERMEDIATE STEERING SHAFT COULD SEPARATE, RESULTING IN LOSS OF STEERING CONTROL AND A CRASH COULD OCCUR.
Remedy: DEALERS WILL INSPECT THE FRONT FRAME ASSEMBLY AND REPLACE IT IF NECESSARY. THE RECALL BEGAN ON AUGUST 16, 2004. OWNERS SHOULD CONTACT PONTIAC AT 1-800-620-7668.
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS · 03V331000
2003-09-12
CERTAIN PASSENGER VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 135, "PASSENGER CAR BRAKING SYSTEMS." ON SOME OF THESE VEHICLES, THE RIGHT REAR BRAKE HOSE FITTING MAY NOT BE TIGHTENED PROPERLY, AND A BRAKE FLUID LEAK COULD OCCUR.
Consequence: IF ENOUGH FLUID LEAKS, THE BRAKE PEDAL WILL BE LOWER THAN NORMAL, AND STOPPING DISTANCES WILL BE LONGER. IF THIS OCCURS WHEN STOPPING DISTANCE IS LIMITED, A CRASH COULD OCCUR.
Remedy: DEALERS WILL TIGHTEN THE RIGHT REAR BRAKE HOSE FITTING TO THE PROPER TORQUE SPECIFICATION, AND ADD BRAKE FLUID IF NECESSARY. OWNER NOTIFICATION BEGAN AUGUST 28, 2003. OWNERS SHOULD CONTACT PONTIAC AT 1-800-620-7668.
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