The 2003 Excursion is essentially a Super Duty truck with a wagon body, so problems split dramatically by engine choice. The 7.3L diesel is bulletproof; the 6.0L diesel is a nightmare waiting to happen; the gassers are thirsty but mechanically simpler with their own quirks.
6.0L Power Stroke EGR Cooler and Head Gasket Failure
Common · high severity
Typical onset: 80,000-150,000 mi
Symptoms: white smoke from exhaust, coolant loss with no visible leak, overheating under load, milky oil or oil in coolant reservoir, rough idle and poor throttle response
Fix: EGR cooler clogs and ruptures, dumping coolant into exhaust and sometimes blowing head gaskets. Proper fix requires EGR cooler delete or bulletproofing kit (cooler, oil cooler, head studs), plus head gasket replacement if already compromised. 18-26 hours labor depending on whether heads need machining.
Estimated cost: $4,500-8,000
6.0L Power Stroke Turbocharger and VGT Actuator Issues
Common · medium severity
Typical onset: 100,000-180,000 mi
Symptoms: lack of power under acceleration, excessive black smoke, check engine light with turbo underboost codes, rattling or grinding noise from turbo, stuck vanes causing no-start or limp mode
Fix: Variable-geometry turbo vanes stick from soot buildup; actuator fails. Can sometimes clean vanes if caught early (4-6 hours), but most need turbo replacement. Aftermarket options perform better than OE. 8-12 hours for turbo swap.
Estimated cost: $1,800-3,500
6.0L Power Stroke High-Pressure Oil Pump (HPOP) and Injector Failure
Occasional · high severity
Typical onset: 120,000-200,000 mi
Symptoms: extended cranking before starting, rough running or misfires, dead miss on one or more cylinders, hard start when warm, loss of power or stalling
Fix: HEUI injection system runs on high-pressure engine oil; pump fails or injectors stick/leak. HPOP replacement is 10-14 hours; injector set replacement adds another 12-16 hours. Many shops do both at once if one fails at high mileage since cab-off is same labor.
Estimated cost: $3,000-7,000
5.4L and 6.8L Triton Spark Plug Ejection and Thread Stripping
Common · medium severity
Typical onset: 60,000-120,000 mi
Symptoms: sudden misfire and rough idle, loud popping or hissing from engine bay, check engine light with misfire codes, loss of power, spark plug blows completely out of head
Fix: Two-piece spark plugs break on removal; shallow plug threads in aluminum heads strip or eject plugs under combustion pressure. Prevention: change plugs every 60k with engine warm, use anti-seize. Repair requires time-sert or helicoil insert per hole, 1.5-2.5 hours per cylinder. Full tune-up with all preventive inserts runs 8-12 hours.
Estimated cost: $150-400 per cylinder or $1,200-2,000 for full preventive service
4R100 Transmission Overdrive Band and Internal Cooler Line Failure
Common · high severity
Typical onset: 100,000-180,000 mi
Symptoms: slipping or flaring on 3-4 upshift, no overdrive or delayed engagement, transmission overheating, pink or milky fluid (cooler line rupture), harsh shifts or banging into gear
Fix: Internal transmission oil cooler lines corrode and rupture, mixing coolant with ATF and destroying clutches/bands. Overdrive band adjusters strip or band wears. Once coolant contaminates fluid, full rebuild required (16-20 hours) plus external cooler install and radiator flush. Preventive external cooler recommended at 80k miles.
Estimated cost: $2,500-4,500
Ball Joint and Track Bar Wear
Occasional · medium severity
Typical onset: 80,000-140,000 mi
Symptoms: clunking over bumps, wandering or loose steering, vibration at highway speed, uneven tire wear, steering wheel off-center after hitting bump
Fix: Heavy-duty front end but still wears under Excursion weight. Ball joints typically done in pairs (3-5 hours per side); track bar bushings wear causing death wobble (2-3 hours to replace). Many shops do full front-end refresh (ball joints, tie rods, track bar, sway bar links) all at once. Alignment required after.
Estimated cost: $1,200-2,200
Fuel Pump and Fuel Bowl Heater Failure (7.3L Diesel)
Occasional · medium severity
Typical onset: 150,000-250,000 mi
Symptoms: hard starting especially when cold, loss of power under load, engine dying at idle, fuel gauge fluctuation, fuel smell or leak from top of engine
Fix: Fuel bowl heater o-rings leak or heater shorts and drains batteries. Lift pump in tank weakens. Fuel bowl reseal is 2-3 hours; in-tank pump replacement 4-6 hours. Many install electric lift pump as preventive upgrade (2-3 hours). 7.3L is otherwise unkillable with proper fuel filtration.
Estimated cost: $600-1,400
Owner tips
If buying a 6.0L diesel, budget $5k immediately for bulletproofing (EGR delete, upgraded oil cooler, ARP head studs) or walk away unless already done—check for receipts and inspect welds on up-pipes.
Install auxiliary transmission cooler at purchase if not present; the stock cooler-in-radiator design will eventually kill the 4R100.
On 5.4L and 6.8L Triton engines, replace spark plugs at 60k miles with engine fully warmed up and use motorcraft plugs only—aftermarket plugs break more often.
7.3L diesel is the only truly reliable engine option; verify oil changes every 5k miles and fuel filter changes every 10k miles to reach 400k+ miles.
These trucks weigh 7,000-9,000 lbs; front-end components wear faster than F-250 due to longer wheelbase and more weight over front axle.
Buy a 7.3L diesel with service records and you have a 300k-mile tank; buy a 6.0L diesel without bulletproofing and you have a $10k repair bill waiting to happen—avoid unless already modded with proof.
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.
Fitment notes: Heavy-duty battery required for 6.8L V10; located under hood on passenger side
As an Amazon Associate, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Every control module on the 2000-2005 Ford Excursion — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
📍 4R100 transmission: integrated into valve body inside transmission; TorqShift 5R110W (2003-2005 diesel): external on driver side of transmission case
🔧 Ford NGS/IDS + Service Function Card
⚠️ 4R100 requires transmission pan removal; TorqShift external module is easier access but still requires VIN programming and adaptive relearn
Transfer Case Control Module (TCCM)1.8 hr R&Rrelearn only +0.3 hr4WD models with electronic shift▸ programming details
📍 attached to transfer case on driver side
🔧 scan tool for shift relearn
⚠️ Controls electronic shift motor; requires shift pattern relearn after replacement; 2WD models have no transfer case
📍 integrated within PCM and GEM/SJB; no standalone module
🔧 Ford NGS/IDS
⚠️ Key programming requires both PCM and GEM/SJB communication; minimum two programmed keys required for self-programming additional keys
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
FORD IS RECALLING CERTAIN MODEL YEAR 2011 RANGER TRUCKS BUILT FROM JANUARY 25, 2011, THROUGH APRIL 25, 2011 AT THE TWIN CITIES ASSEMBLY PLANT, AND SERVICE PARTS DISTRIBUTED TO DEALERS FOR CERTAIN 2004 THROUGH 2011 MODEL YEAR RANGER TRUCKS, 2002 THROUGH 2005 MODEL YEAR EXCURSION VEHICLES, AND 2002 THROUGH 2007 MODEL YEAR F-250, F-350, F-450, AND F-550 TRUCKS FOR FAILING TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THE MULTI-FUNCTION SWITCH WAS SHIPPED WITH A SUBCOMPONENT (SLIDER) THAT MAY EXPERIENCE DEFORMATION. A MULTI-FUNCTION SWITCH WITH A DEFORMED SLIDER MAY MALFUNCTION CAUSING THE TURN SIGNAL, TAIL LIGHTS, HAZARD WARNING SIGNAL FLASHERS AND/OR BRAKE LIGHTS NOT TO ACTIVATE.
Consequence: NON-FUNCTIONING LIGHTS COULD INCREASE THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE SWITCHES FREE OF CHARGE. THE SAFETY RECALL BEGAN ON AUGUST 15, 2011. OWNERS MAY CONTACT FORD MOTOR COMPANY CUSTOMER RELATIONSHIP CENTER AT 1-866-436-7332.
VEHICLE SPEED CONTROL · 09V399000
2009-10-13 · EA08021
FORD IS RECALLING MODEL YEARS 1995-2003 WINDSTAR, 2000-2003 EXCURSION DIESEL, 1993-1997 AND 1999-2003 F-250 SD THROUGH F-550 SD DIESEL, 1992-2003 E-150 THROUGH E-550, 1995-2002 EXPLORER, 1997 AND 2002 MERCURY MOUNTAINEER, 1995-1997 AND 2001-2003 RANGER, AND 1994 F53 VEHICLES EQUIPPED WITH THE TEXAS INSTRUMENTS SPEED CONTROL DEACTIVATION SWITCH (SCDS). THE SCDS MAY LEAK INTERNALLY AND THEN OVERHEAT, SMOKE, OR BURN.
Consequence: A VEHICLE FIRE COULD OCCUR WITH OR WITHOUT THE ENGINE RUNNING.
Remedy: FORD WILL NOTIFY OWNERS THAT DEALERS WILL INSTALL A FUSED WIRING HARNESS IN LINE WITH THE SCDS. ON 1999-2003 WINDSTAR VEHICLES WITH A LEAKING SCDS, DEALERS WILL ALSO INSPECT THE ABS CONTROL MODULE CONNECTOR AND REPAIR AS NECESSARY. REPAIRS WILL BE COMPLETED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON OCTOBER 27, 2009. OWNERS MAY CONTACT FORD AT 1-888-222-2751.
ENGINE AND ENGINE COOLING:ENGINE:DIESEL · 07V553000
2007-12-05 · EA06012
ON CERTAIN HEAVY DUTY TRUCKS EQUIPPED WITH 7.3L DIESEL ENGINES, THE CAMSHAFT POSITION SENSOR LOCATED ON THE ENGINE OF THE VEHICLE MAY FUNCTION INTERMITTENTLY, POSSIBLY RESULTING IN AN ENGINE STALL.
Consequence: IN THE EVENT OF AN ENGINE STALL, A CRASH COULD RESULT WITHOUT WARNING.
Remedy: DEALERS WILL INSPECT THE SENSOR AND REPLACE IT WITH AN IMPROVED CAMSHAFT POSITION SENSOR FREE OF CHARGE. THE RECALL BEGAN ON DECEMBER 29, 2007. OWNERS MAY CONTACT FORD AT 1-866-436-7332.
VEHICLE SPEED CONTROL · 07V078000
2007-03-06 · EA05005
ON CERTAIN TRUCKS EQUIPPED WITH SPEED CONTROL, GASOLINE OR NATURAL GAS ENGINES, THE SPEED CONTROL DEACTIVATION SWITCH MAY OVERHEAT.
Consequence: OVERHEATING COULD RESULT IN SMOKE, BURN, OR AN UNDERHOOD FIRE.
Remedy: DEALERS WILL INSTALL A FUSED WIRING HARNESS INTO THE SPEED CONTROL SYSTEM FREE OF CHARGE. THE RECALL BEGAN ON MARCH 12, 2007. OWNERS MAY CONTACT FORD AT 1-800-392-3673. (NOTE: ALSO SEE RECALLS 05V017, 05V388, AND 06V286)
ELECTRICAL SYSTEM:12V/24V/48V BATTERY · 04V327000
2004-07-07
ON CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES EQUIPPED WITH 6.0L DIESEL ENGINES, THE ENGINE GROUND STUD THAT ATTACHES THE NEGATIVE BATTERY TERMINAL EYELET TO THE ENGINE BLOCK MAY BE LOOSE.
Consequence: IF THE GROUND WIRE IS LOOSE, ELECTRICAL CURRENT MAY FLOW TO THE RADIO SUPPRESSION STRAP CAUSING IT TO HEAT AND POTENTIALLY MELT OR IGNITE ADJACENT COMPONENTS WHICH COULD RESULT IN A FIRE.
Remedy: DEALERS WILL REPLACE THE ENGINE GROUND STUD AND THE RADIO SUPPRESSION STRAP AND ADJACENT COMPONENTS WILL BE INSPECTED FOR DAMAGE AND REPLACED, IF NECESSARY. THE RECALL BEGAN ON JULY 23, 2004. OWNERS SHOULD CONTACT FORD AT 1-800-392-3673.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 2003 Ford Excursion 6.8L V10 Triton and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.