2004 Ford F-150 Problems: 7 Issues Every Owner Should Know

2004 model year · 3,568+ owner reports · Updated May 2026

According to Au7o's analysis of 3,568+ owner reports, the 2004 Ford F-150 has 7 documented known issues, with 6 rated critical. The most serious are Brake Line Corrosion and Hydraulic Failure (Salt-Belt 11th/12th-Gen F-150) ($300-$1,500 repair), Fuel Pump Driver Module (FPDM) Corrosion and No-Start / Stalling ($150-$450 repair), Severe Frame Rust and Rear Frame/Leaf Spring Shackle Corrosion ($500-$6,000 repair), Throttle Body / Electronic Throttle Stalling and Hesitation ($150-$700 repair), Cruise Control Deactivation Switch Fire Risk and Driver Airbag Clockspring / Airbag Warning and Non-Deployment ($250-$900 repair). The most commonly reported issue is Window Regulator Cable Failure and Sudden Glass Drop (11th-Gen F-150) with 1,140 owner reports. Across all issues, repair costs range from $150 to $6,000. DIY maintenance guides at au7o.io.

All 7 Known Issues

Community Reported

311 owners

On the 2004 Ford F-150, numerous 2004 complaints describe extensive frame corrosion, including rust-through near the rear frame, leaf spring shackles, hitch area, and subframe sections. In many reports the truck was deemed unsafe to drive, failed inspection, or showed suspension and brake mounting deterioration due to structural rust.

This issue also affects: Chevrolet Colorado, Ford Explorer Sport Trac, Mazda B-Series

Common Symptoms

Visible holes or perforation in frame rails
Leaf spring shackle area rusted through
Hitch or rear frame section breaking away
Vehicle fails safety inspection
Unsafe to lift on a jack due to frame rot

How to Fix

A thorough underbody inspection is required, especially around rear frame rails, shackle mounts, crossmembers, brake line routing, and hitch attachment points. Minor corrosion can sometimes be treated and reinforced, but advanced perforation usually requires frame section repair, shackle mount repair kits, or vehicle retirement; costs range from about $500 for localized reinforcement to $5,000+ for major structural work. Brake and fuel lines should be inspected at the same time because corrosion often affects them too.

What Owners Are Using

Parts and tips from 311+ owners who fixed this issue

TipInspect the rear frame and shackle mounts before purchase in rust-belt states; many complaints describe hidden corrosion discovered during routine service.
UpgradeReplacement shackles and hardware can help only if the surrounding frame metal is still structurally sound. (Dorman Leaf Spring Shackle Kit)
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TipIf brake lines or fuel line brackets are heavily rusted, repair them immediately because structural corrosion often spreads to safety-critical components.

Typical repair cost:$500 - $6,000

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NHTSA Verified

High Confidence311 reportsLast reported by owners Invalid DateReviewed Invalid Date

Community Reported

1,140 owners

On the 2004-2008 Ford F-150, 2004-2008 Ford F-150 (11th-generation) suffer from window regulator cable take-up reel failure, causing the window glass to drop suddenly from the closed position — sometimes at highway speeds with a loud bang. The cable frays and bird-nests on the reel, releasing tension on the glass. Driver-side rear and front passenger windows are most commonly affected. Multiple windows on a single vehicle often fail in succession. Ford dealers report replacing 1-2 regulators per week per service department during the peak failure window. Despite extensive complaints, Ford never issued a recall. Replacement cost: $250-$450 per window at independent shops, $400-$700 at dealer.

This issue also affects: Jeep Grand Cherokee, Toyota Camry, Audi 90

Common Symptoms

Window falls into the door suddenly
Loud pop followed by wind noise
Power window stops moving or jams
Repeated regulator failures on multiple doors
Glass drops while driving

How to Fix

Diagnosis usually confirms a failed cable-style window regulator or broken pulley assembly inside the door. The typical repair is replacement of the regulator assembly, and often the motor is reused unless noisy or weak; expect about $250-$600 per door using quality aftermarket or OEM-style parts. If more than one window has failed, inspect all door regulators and glass guides for binding.

What Owners Are Using

Parts and tips from 1,140+ owners who fixed this issue

TipIf one regulator fails, inspect the remaining doors because complaints often describe multiple failures over time.
UpgradeA complete regulator assembly is the usual fix and is widely available for these trucks. (Dorman Power Window Regulator)
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TipCheck for sticky window channels or misaligned glass, which can overload the replacement regulator.

Typical repair cost:$250 - $600

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High Confidence1,140 reportsLast reported by owners Invalid DateReviewed Invalid Date

Community Reported

765 owners

On the 2004-2014 Ford F-150, 2004-2014 Ford F-150 brake lines, hoses, and ABS hydraulic components corrode aggressively in salt-belt states. Steel brake lines along the frame rust through, causing sudden loss of brake fluid and reduced or no pedal feel. Front and rear hard lines and rear axle flex hoses are most commonly affected. NHTSA has received numerous complaints but no recall has been issued — replacement is owner-paid ($800-$2,000+ depending on which lines need replacing). Most failures occur after 100,000 miles in northern/coastal states; southern-state trucks rarely show the pattern. Inspect annually if you drive in salt regions.

This issue also affects: Chevrolet Silverado 1500, GMC Sierra 1500, Honda Accord

Common Symptoms

Brake pedal fades to the floor
Sudden loss of braking power
Brake fluid loss or leaks
Rear brake hose separation
ABS light on with poor braking

How to Fix

Inspect all steel brake lines, rear flex hoses, calipers, ABS hydraulic components, and the master cylinder/booster interface for leaks or corrosion. Repairs commonly include replacing rusted lines with pre-bent or custom nickel-copper lines, new rear hoses, and sometimes a master cylinder and booster; typical cost is about $300-$1,500 depending on how much of the system is affected. Bleed the full system and verify ABS operation after repair.

What Owners Are Using

Parts and tips from 765+ owners who fixed this issue

TipIf the truck has frame rust, inspect brake lines immediately because corrosion-related brake failures are commonly reported together.
UpgradeNickel-copper replacement brake line is more corrosion resistant than plain steel and is a common long-term fix. (Dorman Brake Hydraulic Line Kit)
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UpgradeA leaking master cylinder should be replaced promptly, especially if fluid is entering the booster. (ACDelco Brake Master Cylinder)
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Typical repair cost:$300 - $1,500

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Community Reported

438 owners

On the 2004-2009 Ford F-150, 2004-2009 Ford F-150 (11th-generation) suffers from Fuel Pump Driver Module (FPDM) corrosion. The aluminum-housed module mounts directly to a steel frame crossmember above the spare tire — the dissimilar-metal contact creates galvanic corrosion, accelerated by road salt and moisture. The aluminum case cracks, water shorts the internal circuit board, and the module stops driving the fuel pump. Symptoms: crank-no-start (most common), stalling after hitting a bump or stopping at lights, intermittent loss of power. Ford issued a recall for 2005-2006 F-150 FPDMs specifically; 2004 and 2007-2009 are not recall-covered but suffer the same defect. Owners typically pay $150-$400 for module replacement plus relocation hardware that mounts the module away from the steel frame.

This issue also affects: Alfa Romeo Giulia, Alfa Romeo Stelvio, Jeep Grand Wagoneer

Common Symptoms

Crank but no start
Sudden stall while driving
Loss of power
Fuel pressure-related warning or code
Intermittent starting problems

How to Fix

Inspect the fuel pump driver module and its mounting bracket for corrosion, cracking, or water intrusion, especially on rust-belt trucks. Repair usually involves replacing the FPDM and often the corroded mounting hardware or bracket, then confirming fuel pressure and wiring integrity; typical cost is about $150-$450. If the truck still will not start, test the fuel pump and rail pressure sensor circuit next.

What Owners Are Using

Parts and tips from 438+ owners who fixed this issue

TipCheck the module above the spare tire early in diagnosis if the truck cranks but will not start.
UpgradeA replacement fuel pump driver module is a common fix for corrosion-related no-start and stall complaints. (Dorman Fuel Pump Driver Module)
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TipInspect the mounting surface and harness connector for corrosion so the new module does not fail prematurely.

Typical repair cost:$150 - $450

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NHTSA Verified

Medium Confidence438 reportsLast reported by owners Invalid DateReviewed Invalid Date

Community Reported

308 owners

On the 2004 Ford F-150, multiple complaints describe the truck stalling in traffic, hesitating on throttle input, or losing power while slowing, idling, reversing, or attempting to accelerate. Several reports specifically mention the throttle body as the cause, with symptoms consistent with electronic throttle control faults or severe throttle body contamination/failure.

This issue also affects: Ford Five Hundred, Ford Ranger

Common Symptoms

Engine stalls in traffic
Hesitation when pressing accelerator
Loss of power while slowing down
Stalls in reverse or at idle
Puttering or shudder before power loss

How to Fix

Scan for throttle-related faults, inspect the throttle body for carbon buildup or sticking, and verify throttle position and pedal signals. Repairs range from cleaning the throttle body and performing a relearn to replacing the throttle body assembly or related sensors; typical cost is about $150-$700. Wiring and connector condition should also be checked if the failure is intermittent.

What Owners Are Using

Parts and tips from 308+ owners who fixed this issue

TipIf the truck stalls when coming to a stop or during low-speed maneuvers, inspect the throttle body before replacing unrelated parts.
UpgradeA new throttle body assembly is often the most reliable fix when cleaning does not resolve sticking or erratic throttle response. (Bosch Throttle Body)
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TipClean the throttle bore and perform an idle/throttle relearn after service to reduce repeat stalling complaints.

Typical repair cost:$150 - $700

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Community Reported

308 owners

On the 2004 Ford F-150, the 2004 F-150 is covered by a recall for the speed control deactivation switch, which can leak internally, overheat, and cause an underhood fire even when the vehicle is parked. Complaint data also includes owners reporting cruise control failure and electrical fires on the passenger side after shutdown or while fueling.

This issue also affects: Ford Explorer, Ford Ranger

Common Symptoms

Cruise control inoperative
Electrical burning smell
Underhood or front-side fire after parking
Melted switch or wiring
Intermittent brake/cruise electrical issues

How to Fix

Verify recall completion for the speed control deactivation switch and inspect the related harness and fused jumper. If the switch or connector shows heat damage, replace the affected components and confirm brake lamp/cruise operation; repair cost is often covered under recall, but out-of-pocket repairs can run about $0-$300 depending on harness damage. Any signs of melting or smoke should be treated as urgent.

What Owners Are Using

Parts and tips from 308+ owners who fixed this issue

TipConfirm the recall was actually completed; some owners report ongoing issues despite knowing about the campaign.
UpgradeIf the recall harness or switch is damaged, replacing the switch and fused jumper restores safe cruise circuit operation. (Motorcraft Cruise Control Deactivation Switch)
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TipDo not ignore a burning smell or inoperative cruise control on these trucks, especially if recall history is unknown.

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NHTSA Verified

High Confidence308 reportsLast reported by owners Invalid DateReviewed Invalid Date

Community Reported

298 owners

On the 2004-2006 Ford F-150, airbag complaints on 2004 F-150 trucks include warning lights, crash sensor messages, non-deployment in crashes, and at least one report of unexpected deployment while parked. NHTSA recall data also identifies a driver airbag inflator/clockspring jumper wire issue that can disable the airbag system, reinforcing a clear safety-related pattern.

This issue also affects: Volkswagen Jetta

Common Symptoms

Airbag warning light illuminated
Crash sensor warning message
Airbags fail to deploy in a collision
Unexpected airbag deployment
Persistent SRS fault after recall work

How to Fix

Scan the restraint control module for airbag faults, inspect the clockspring and steering column wiring, and verify crash sensor and connector integrity. Repairs may include clockspring replacement, airbag circuit repair, or sensor replacement; typical cost is about $250-$900 unless covered by recall. After repair, the SRS light should be cleared and the system rechecked with a capable scan tool.

What Owners Are Using

Parts and tips from 298+ owners who fixed this issue

TipIf the airbag light is on, do not assume the system will work in a crash; scan the SRS module and verify recall completion.
UpgradeA replacement clockspring is a common repair when steering wheel airbag circuits lose continuity. (Dorman Clockspring)
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TipAfter any steering column or airbag repair, confirm the horn, cruise, and steering-wheel controls also work correctly.

Typical repair cost:$250 - $900

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Frequently Asked Questions

What are the most common Ford F-150 problems?

According to Au7o's analysis of 3,568+ owner reports, the 2004-2004 Ford F-150 has 7 documented issues. The most frequently reported are: Brake Line Corrosion and Hydraulic Failure (Salt-Belt 11th/12th-Gen F-150), Fuel Pump Driver Module (FPDM) Corrosion and No-Start / Stalling, Severe Frame Rust and Rear Frame/Leaf Spring Shackle Corrosion. Of these, 6 are rated critical and should be addressed promptly.

Is the Ford F-150 reliable?

The 2004-2004 Ford F-150 has 7 known issues documented across 3,568+ owner reports. 6 issues are rated critical: Brake Line Corrosion and Hydraulic Failure (Salt-Belt 11th/12th-Gen F-150) and Fuel Pump Driver Module (FPDM) Corrosion and No-Start / Stalling and Severe Frame Rust and Rear Frame/Leaf Spring Shackle Corrosion and Throttle Body / Electronic Throttle Stalling and Hesitation and Cruise Control Deactivation Switch Fire Risk and Driver Airbag Clockspring / Airbag Warning and Non-Deployment. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Ford F-150 problems?

Repair costs for known Ford F-150 issues range from $150 to $6,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Brake Line Corrosion and Hydraulic Failure (Salt-Belt 11th/12th-Gen F-150), typically costs $300-$1,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2004-2014 Ford F-150 Brake Line Corrosion and Hydraulic Failure (Salt-Belt 11th/12th-Gen F-150)?

2004-2014 Ford F-150 brake lines, hoses, and ABS hydraulic components corrode aggressively in salt-belt states. Steel brake lines along the frame rust through, causing sudden loss of brake fluid and reduced or no pedal feel. Front and rear hard lines and rear axle flex hoses are… Repairs typically run $300-$1,500. Severity: high.

All 7 Known Issues

2004 Ford F-150: Severe Frame Rust and Rear Frame/Leaf Spring Shackle Corrosion#

Common Symptoms

How to Fix

What Owners Are Using

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2004-2008 Ford F-150: Window Regulator Cable Failure and Sudden Glass Drop (11th-Gen F-150)#

Common Symptoms

How to Fix

What Owners Are Using

Research This Issue

2004-2014 Ford F-150: Brake Line Corrosion and Hydraulic Failure (Salt-Belt 11th/12th-Gen F-150)#

Common Symptoms

How to Fix

What Owners Are Using

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2004-2009 Ford F-150: Fuel Pump Driver Module (FPDM) Corrosion and No-Start / Stalling#

Common Symptoms

How to Fix

What Owners Are Using

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2004 Ford F-150: Throttle Body / Electronic Throttle Stalling and Hesitation#

Common Symptoms

How to Fix

What Owners Are Using

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2004 Ford F-150: Cruise Control Deactivation Switch Fire Risk#

Common Symptoms

How to Fix

What Owners Are Using

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2004-2006 Ford F-150: Driver Airbag Clockspring / Airbag Warning and Non-Deployment#

Common Symptoms

How to Fix

What Owners Are Using

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Other Ford Models

Frequently Asked Questions

What are the most common Ford F-150 problems?

Is the Ford F-150 reliable?

How much does it cost to fix common Ford F-150 problems?

What is the 2004-2014 Ford F-150 Brake Line Corrosion and Hydraulic Failure (Salt-Belt 11th/12th-Gen F-150)?

What is the 2004-2009 Ford F-150 Fuel Pump Driver Module (FPDM) Corrosion and No-Start / Stalling?

What is the 2004 Ford F-150 Severe Frame Rust and Rear Frame/Leaf Spring Shackle Corrosion?

What is the 2004 Ford F-150 Throttle Body / Electronic Throttle Stalling and Hesitation?

What is the 2004 Ford F-150 Cruise Control Deactivation Switch Fire Risk?

What is the 2004-2006 Ford F-150 Driver Airbag Clockspring / Airbag Warning and Non-Deployment?

What is the 2004-2008 Ford F-150 Window Regulator Cable Failure and Sudden Glass Drop (11th-Gen F-150)?