Gen 2 Raptor Common Problems (2017-2020): The Full List

The two most expensive things that go wrong on a 2017-2020 Ford Raptor are a cam phaser rattle at cold start and an internal water pump failure on the 3.5L EcoBoost, and both can run into the thousands of dollars by the time the truck is out of factory warranty. Everything else on this list is cheaper, more common, and usually more annoying than it is dangerous. Below is every problem worth knowing about on a Gen 2 (2017-2020), what it actually costs, and what to check before you buy one.

All Gen 2 Raptors now sit well past Ford's 5-year/60,000-mile powertrain warranty, so unless you bought an extended service plan, every item here is coming out of your pocket. A TSB (technical service bulletin, a documented repair procedure Ford publishes for a known issue) is not free work. It just tells a dealer tech the correct fix instead of making them guess. A recall is different: it is safety-related and Ford pays for it regardless of mileage. Gen 2 has its own recall history worth checking by VIN, covered separately in the Gen 2 Ford Raptor recall digest.

Quick reference

The two problems that actually cost money

Cam phaser rattle

A cam phaser (the variable valve timing unit bolted to the front of each camshaft) that wears internally will let the timing chain slap against its guides for the first several seconds after a cold start, then quiet down once oil pressure builds. It is loud enough that owners describe it as a diesel clatter or a bag of bolts. It shows up across 2017-2020, but it is worst and most common on 2017-2018 trucks built before Ford revised the phaser design.

The only real fix is the updated phaser kit Ford released for these engines, installed with new tensioners, guides, chains, and a PCM reflash. Anything short of that (just phasers, just a reflash) tends to come back. Budget $2,400-$4,800 at a dealer, and get a written estimate before you commit, since the spread depends heavily on whether the shop finds secondary wear on the guides or chain. We cover every repair path and how the cost breaks down in the Gen 2 cam phaser rattle cost guide, and the related trouble code is explained in the P144C code writeup if that's what triggered your check engine light.

Internal water pump failure

The 3.5L EcoBoost on Gen 2 uses a water pump driven off the front of the engine, inside the timing cover, not a simple bolt-on external pump. When the seal fails, coolant gets into the oil (milky residue on the dipstick) or just disappears with no puddle under the truck. This shows up across 2017-2020, typically past 80,000 miles, though it has no hard mileage cliff.

The fix requires pulling the front cover, so labor is most of the bill. Budget $1,900-$3,200, and if the truck has been run on coolant-contaminated oil for any length of time, ask the shop to check bearings and get a real number before you approve the job. The full breakdown by engine and year, including how this interacts with the phaser issue since both live behind the same timing cover, is in the 3.5 EcoBoost problems by year guide and the dedicated water pump failure writeup.

Moderate problems that affect the driving experience

10R80 harsh shifts and torque converter shudder

A clunk into second or third gear when the transmission is cold, plus a light steady vibration at 40-50 mph under light throttle, is the 10R80's signature complaint on 2017-2019 Raptors. The shudder window is specific: it shows up in that exact speed and load range and will not appear on a short test drive around the block.

Start with the TSB reflash, which solves a real share of these for $0 if you're inside a warranty window, or a diagnostic fee if you're not. If the shudder persists, the next step is a valve body or solenoid body replacement, running $1,400-$2,400. Full detail on what actually fixes this versus what just masks it is in the 10R80 shift and shudder guide. If you're buying used and the fluid has never been changed, the 10R80 fluid change interval guide is worth reading before you decide whether to do it yourself.

IWE actuator grinding

The IWE (integrated wheel end, the vacuum-actuated system that locks the front hubs into 4WD) grinds when the actuators, vacuum lines, or the check valve start leaking vacuum. It is worse cold and worse wet, and it affects the full 2017-2020 range. Shops that only replace one actuator tend to get a callback in six months, since the parts wear as a set. Budget $600-$1,000 to do it right. The full diagnostic path is in why your IWE is grinding.

Rear axle wrap and squat under load

Axle wrap (the rear axle twisting under torque until the leaf springs let go and snap it back) shows up as a hard squat on launch and a shudder on rough acceleration, across 2017-2020. This is a factory suspension characteristic more than a failure, and it gets worse as the stock leaf pack ages. The common fix is a Deaver add-a-leaf pack or an equivalent ICON pack, plus new U-bolts and correctly sized shackles, for $700-$1,600 installed. This is also the single most common first mod on this truck, covered below.

Fox 3.0 shock seal weep

The factory Fox 3.0 internal bypass shocks on Gen 2 are a real piece of hardware, but they are a wear item under sustained desert use. Oil on the shock body and a truck that packs up and gets harsh after ten minutes of whoops points to seal wear, typically at 30,000-50,000 desert miles on a truck that has actually been run hard. A rebuild and revalve for your weight and terrain runs $1,100-$2,200 for the set. We break down failure symptoms and cost in detail in Fox shock leaks and failures, and compare the stock dampers against aftermarket options in the King vs Fox vs ICON whoops test.

Minor problems and annoyances

Turbo wastegate actuator rattle

A metallic chatter at idle or light load that tracks with the turbo, not the heat shield, is usually a worn wastegate actuator (the arm that controls exhaust bypass for boost control). It affects 2017-2020 and shops often do both sides while the engine bay is open, since access is similar. Budget $500-$1,100 per side. The full symptom list and whether this is a precursor to bigger turbo problems is in the 3.5 EcoBoost turbo failure guide.

Live Valve ride height sensor fault

2019-2020 Gen 2 Raptors got Fox's Live Valve electronically adjustable damping, and the ride height sensors that feed it live in the wheel wells where desert driving eats them. A fault throws a suspension or AdvanceTrac warning and drops the dampers into one fixed setting. Usually it is one sensor or its linkage. Budget $300-$700 per sensor plus recalibration.

Sunroof drain clog and headliner staining

Clogged sunroof drains cause A-pillar headliner stains or a wet passenger floor after rain, on any 2017-2020 sunroof-equipped truck. Clearing and reseating the drains runs $150-$600. If the headliner is already stained, that repair is separate and the drain clog is not the whole bill anymore.

Buying a used Gen 2: what to check before you pay

1. Cold start it yourself, engine off overnight if possible. Phaser rattle is the single biggest line item on this truck, and ten seconds of listening tells you more than any inspection report.
2. Pull the dipstick and the oil cap. Milky residue or a coolant top-off history points at the water pump.
3. Drive it 40-50 mph on light throttle for two minutes. Converter shudder shows up in that exact window and nowhere else.
4. Ask directly if it has ever been tuned. Flash counters do not reset. A seller who denies it and gets caught is telling you what else they are not mentioning.
5. Check the bed floor, upper control arm mounts, and bump stops for ripples and hourglassing, signs the truck has been jumped. Not a dealbreaker on its own, but it changes the number you offer.
6. On a 2019 or 2020, cycle the drive modes and watch for a suspension warning on the cluster. A stuck Live Valve system means you're paying for a feature that doesn't work.
7. Get eyes on the frame at the rear shock mounts and spring perches on high-mile desert trucks.
8. Scan it yourself with your own reader before negotiating. Cleared codes come back; pending codes tell you what the dash isn't showing yet.

A full walk-through of this checklist, item by item, is in the used Gen 2 Raptor buying guide. If you're still deciding between a Gen 2 and the newer platform, the Gen 2 vs Gen 3 comparison and the best Raptor year to buy are worth reading before you commit to this generation at all. The F-150 Raptor generation hub has the full spec and ownership picture by year.

If you're planning mods anyway

If you're already budgeting for the axle wrap fix, do it first. A Deaver add-a-leaf pack kills the squat, stops the wrap, and makes every other suspension decision on the truck easier, for $900-$1,900 installed depending on whether you add shackles and U-bolts.

Tires come next, and 37s fit a Gen 2 with minor fender liner trimming. The full cost breakdown, including whether you need a tune afterward, is in how much it costs to put 37s on a Gen 2 and do you need a tune after 37s.

The short version

• The two repairs that actually hurt are the cam phaser rattle ($2,400-$4,800) and the internal water pump ($1,900-$3,200), both on the 3.5L EcoBoost across 2017-2020.
• Everything else (10R80 shudder, IWE grinding, axle wrap, shock seals, turbo rattle, Live Valve sensors, sunroof drains) is cheaper and more of an annoyance than a dealbreaker.
• Cold-start the truck and pull the dipstick before you buy. Those two checks catch the expensive problems on this list.
• These trucks are out of factory powertrain warranty now, so price every repair into your offer, not into a future warranty claim.