The 1999 Town Car's 4.6L 2V SOHC is generally robust, but the 4R70W transmission cooler failure and intake manifold cracking are platform killers. Most catastrophic engine work stems from ignored cooling system failures or the notorious plastic-coolant interaction issue.
Transmission Cooler Line Failure Inside Radiator
Common · high severity
Typical onset: 80,000-150,000 mi
Symptoms: Pink or strawberry-milkshake fluid in transmission dipstick, Transmission slipping or delayed engagement after radiator started leaking, Sudden overheating of transmission temp, Metal shavings visible in trans fluid
Fix: Radiator internal cooler ruptures, mixing coolant into ATF and destroying the 4R70W. Requires radiator replacement, complete transmission flush or rebuild (often rebuild), plus cooler line replacement. 8-12 hours labor if transmission needs rebuild.
Estimated cost: $2,500-4,200
Intake Manifold Cracking (Plastic Crossover)
Common · high severity
Typical onset: 60,000-120,000 mi
Symptoms: Coolant smell inside cabin or under hood, Gradual coolant loss with no visible external leaks, White smoke from exhaust on cold start, Misfires or rough idle from coolant entering cylinders, Coolant in oil (milky dipstick) in severe cases
Fix: Ford's plastic intake manifold develops stress cracks where coolant passages cross. Must replace entire intake assembly with updated aluminum aftermarket or Dorman unit. 5-7 hours labor including coolant flush and gaskets.
Estimated cost: $800-1,400
Air Suspension Compressor and Line Failures
Common · medium severity
Typical onset: 70,000-140,000 mi
Symptoms: Rear sags overnight or when parked, Compressor runs constantly or cycles frequently, Suspension warning light illuminated, Hissing sound from rear wheel wells, Uneven ride height side-to-side
Fix: Air springs develop leaks at crimps, lines rot at fittings, compressor wears out from overwork. Can replace individual bags (2 hours each) or convert entire system to coil springs (4-6 hours). Compressor replacement is 2-3 hours.
Estimated cost: $600-1,800
Lower Ball Joint Separation (Front Suspension)
Occasional · high severity
Typical onset: 90,000-180,000 mi
Symptoms: Clunking over bumps from front end, Wandering or loose steering feel, Excessive tire wear on inside edge, Visible grease boot tears on ball joints, Wheel camber visibly off
Fix: Lower control arm ball joints wear and can separate catastrophically (NHTSA recall issued). Requires full lower control arm replacement on each side—joints not serviceable separately on these. 3-4 hours labor for both sides plus alignment.
Estimated cost: $600-950
Blend Door Actuator Failure (EATC Climate Control)
Common · low severity
Typical onset: null
Symptoms: Clicking or ticking noise from behind dashboard, Heat only blows on one side or stuck on heat/cold, Temperature control unresponsive, Constant clicking when adjusting climate controls
Fix: Electronic automatic temperature control blend door actuators strip gears or bind. Actuator replacement requires dash removal for full access. Shortcut methods exist but risk incomplete repair. Full dash-out approach is 8-10 hours labor.
Estimated cost: $800-1,500
Fuel Pump Driver Module Failure
Occasional · high severity
Typical onset: null
Symptoms: No-start condition intermittent or permanent, Engine dies while driving and won't restart until cool, Fuel pump runs constantly or not at all, Check engine light with fuel delivery codes
Fix: Module mounted to frame rail above spare tire overheats and fails. Simple replacement, accessible from under vehicle. 1 hour labor, but often misdiagnosed as fuel pump initially.
Estimated cost: $200-400
Spark Plug Ejection (Threads Strip from Head)
Rare · high severity
Typical onset: null
Symptoms: Loud popping or hissing sound from engine bay, Sudden misfire on one cylinder, Loss of compression on affected cylinder, Visible spark plug dangling or blown out
Fix: Aluminum heads have thin spark plug threads that can strip under stress or over-torquing. Requires thread insert kit (HeliCoil or TimeSert). 3-5 hours labor if head stays on vehicle, 12+ if removal needed for severe damage.
Estimated cost: $400-2,500
Owner tips
Replace radiator proactively at 100k miles with aftermarket unit featuring external transmission cooler to prevent the cooler-line catastrophe
Inspect intake manifold crossover at every coolant service—plastic becomes brittle, replace before it cracks internally
Use Motorcraft gold coolant only; green coolant accelerates plastic intake degradation
Check ball joint boots annually; replace control arms at first sign of play, don't wait for the clunk
Consider air suspension delete with coil conversion if buying high-mileage—saves ongoing repair headaches
Solid highway cruiser if intake and cooling system are already addressed; budget $2,000-3,000 for deferred maintenance on any sub-$5,000 example or walk away.
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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Dorman Products, Inc. (Dorman) is recalling certain model Dorman Steering Shafts, part number 425-359, Solutions Steering Shafts, part number 7-0359, and OE Solutions Steering Shafts, part number 425-359, manufactured April 17, 2014, to September 28, 2015. These aftermarket replacement steering shafts are sold for use in 1995-2002 Ford Crown Victoria, Mercury Grand Marquis, and Lincoln Town Car vehicles. These steering shafts may separate during operation if the integral fastener is loose or missing and if the interfacing vehicle shaft is compressed in length.
Consequence: If the shafts separate during vehicle operation, a loss of steering control would result, increasing the risk of a vehicle crash.
Remedy: Dorman will notify owners, and dealers will replace the steering shaft, free of charge. The recall began on October 28, 2015. Owners may contact Dorman customer service at 1-800-523-2492, option 5.
TIRES · 00V356000
2000-12-12
VEHICLE DESCRIPTION: CERTAIN LIMOUSINES STRETCHED OVER 60 INCHES FAIL TO COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 109, "NEW PNEUMATIC TIRES," AND NO. 110, "TIRE SELECTION AND RIMS."
Consequence: THE VEHICLE WEIGHT COULD EXCEED THE MAXIMUM LOAD RATING FOR THE TIRE, INCREASING THE RISK OF PREMATURE TIRE WEAR OR BLOWOUT.
Remedy: DEALERS WILL REPLACE ALL 5 TIRES (INCLUDING THE SPARE TIRE) WITH MICHELIN TIRES (225/70R16 107T REINFORCED WHITE SIDEWALL) WITH A SUFFICIENTLY HIGHER LOAD RATING. OWNER NOTIFICATION BEGAN JANUARY 10, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT FORD AT 1-800-248-0186.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THESE VEHICLES HAVE JACKING INSTRUCTIONS WHICH, IF FOLLOWED, COULD CAUSE THE VEHICLE OPERATOR TO PLACE THE JACK ON A FRAME WELD WHEN ATTEMPTING TO RAISE A REAR WHEEL. IF THE VEHICLE IS JACKED UP WITH THE JACK PLACED ON THE FRAME WELD AND IF THE VEHICLE IS FREE TO ROLL (WHEELS NOT BLOCKED OR CHOCKED), THE JACK COULD YIELD AND THE VEHICLE MAY DROP SUDDENLY.
Consequence: IF THIS OCCURS AND ANY PORTION OF THE OPERATOR'S BODY IS UNDER THE VEHICLE, THE POTENTIAL FOR PERSONAL INJURY EXISTS.
Remedy: OWNERS WILL BE PROVIDED WITH A REVISED JACK INSTRUCTION AND STOWAGE CARD AND JACK WARNING LABEL, AS WELL AS A SUPPLEMENT TO THE OWNER GUIDE.
SEAT BELTS:FRONT:ANCHORAGE · 00V157001
2000-06-12
VEHICLE DESCRIPTION: PASSENGER VEHICLES USING AFTERMARKET DRIVER'S SEAT BELT ASSEMBLIES THAT WERE SOLD BY FORD PARTS DEPARTMENTS FROM JANUARY 1, THROUGH JUNE 13, 2000. THESE SEAT BELT ASSEMBLIES FAIL TO COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 209, "SEAT BELT ASSEMBLIES." THE EQUIPMENT INVOLVED IS SERVICE STOCK SEAT BELT ASSEMBLIES, MODEL NOS. H 9977, H 9979, T 9063, AND T 9217, BUILT BY TRW VEHICLE SAFETY SYSTEMS, INC. (TRW) MANUFACTURED FROM JUNE 1, 1998 THROUGH MAY 21, 2000. SOME OF THESE SEAT BELT ASSEMBLIES MAY HAVE BEEN INSTALLED AS SERVICE REPLACEMENT EQUIPMENT ON THE VEHICLES INVOLVED IN THE RECALL.
Consequence: IN THE EVENT OF A COLLISION, THESE SEAT BELTS MAY NOT RESTRAIN AN OCCUPANT INCREASING THE RISK OF INJURY.
Remedy: DEALERS WILL INSPECT THESE VEHICLES AND REPLACE THE SERVICE SEAT BELT ASSEMBLIES THAT WERE INSTALLED IN THESE VEHICLES FROM JANUARY 1 THROUGH JUNE 13, 2000.
SEAT BELTS:FRONT:ANCHORAGE · 00V157002
2000-06-12
VEHICLE DESCRIPTION: PASSENGER VEHICLES USING AFTERMARKET FRONT PASSENGER SIDE SEAT BELT ASSEMBLIES THAT WERE SOLD BY FORD PARTS DEPARTMENTS FROM JANUARY 1, THROUGH JUNE 13, 2000. THESE SEAT BELT ASSEMBLIES FAIL TO COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 209, "SEAT BELT ASSEMBLIES." THE EQUIPMENT INVOLVED IS SERVICE STOCK SEAT BELT ASSEMBLIES, MODEL NOS. H 9977, H 9979, T 9063, AND T 9217, BUILT BY TRW VEHICLE SAFETY SYSTEMS, INC. (TRW) MANUFACTURED FROM JUNE 1, 1998 THROUGH MAY 21, 2000. SOME OF THESE SEAT BELT ASSEMBLIES MAY HAVE BEEN INSTALLED AS SERVICE REPLACEMENT EQUIPMENT ON THE VEHICLES INVOLVED IN THE RECALL.
Consequence: IN THE EVENT OF A COLLISION, THESE SEAT BELTS MAY NOT RESTRAIN AN OCCUPANT INCREASING THE RISK OF INJURY.
Remedy: DEALERS WILL INSPECT THESE VEHICLES AND REPLACE THE SERVICE SEAT BELT ASSEMBLIES THAT WERE INSTALLED IN THESE VEHICLES FROM JANUARY 1 THROUGH JUNE 13, 2000.
VEHICLE DESCRIPTION: CERTAIN 1996-1999 FORD CROWN VICTORIA POLICE, FLEET, NATURAL GAS, AND 1996-1999 LINCOLN TOWN CAR LIMOUSINE VEHICLES THAT WERE PRODUCED WITH A LOWER CONTROL ARM BALL JOINT CONTAINING A ONE PIECE BEARING; AND 1990-1996 FORD CROWN VICTORIA POLICE, FLEET, AND NGV VEHICLES AND 1990-1996 LINCOLN TOWN CAR LIMOUSINE VEHICLES THAT HAVE BEEN SERVICED WITH EITHER A BALL JOINT CONTAINING THE ONE-PIECE BEARING OR A FRONT LOWER CONTROL ARM CONTAINING A BALL JOINT WITH A ONE-PIECE BEARING. THE ONE-PIECE BEARING WITHIN THE LOWER CONTROL ARM BALL JOINT CAN WEAKEN SLOWLY DURING USE AND EVENTUALLY CRACK. THIS COULD RESULT IN SEPARATION OF THE BALL AND CAP OF THE JOINT, ALLOWING THE CONTROL ARM TO DROP TO THE GROUND.
Consequence: IF THIS OCCURS WHILE THE VEHICLE IS MOVING, REDUCED STEERING CONTROL COULD OCCUR, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE LOWER CONTROL ARM BALL JOINTS (2).
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