2006 Ford F-150
2006 Ford F-150 Common Problems: Transmission, Engine & What Replacement Costs

2006 Ford F-150 Common Problems: Transmission, Engine & What Replacement Costs
Shop 2006 Ford F-150 replacement parts
Used 2006 Ford F-150 Transmission
Fits 2006 Ford F-150
Inspected, lower-cost option from our inventory.
$500–$1,100
Shop used transmissionRemanufactured 2006 Ford F-150 Transmission
Fits 2006 Ford F-150
Rebuilt to spec and warranty-backed for peace of mind.
$1,400–$2,600
Shop remanufactured transmissionUsed 2006 Ford F-150 Engine
Fits 2006 Ford F-150
Inspected, lower-cost option from our inventory.
$600–$1,400
Shop used engineRemanufactured 2006 Ford F-150 Engine
Fits 2006 Ford F-150
Rebuilt to spec and warranty-backed for peace of mind.
$2,000–$3,800
Shop remanufactured enginePrice ranges are typical replacement costs; final pricing and availability are confirmed in our catalog.


The 2006 Ford F-150 is one of the most capable and widely-used trucks on the road — and also one of the most problem-prone model years in the 11th-generation lineup. If you're driving one and something feels off, you're probably not imagining it. This particular year sits right in the middle of a generation (2004–2008) that Ford owners and technicians have come to know for predictable, repeatable failures in both the transmission and engine.
The good news is that these problems are well-understood. Mechanics have seen them hundreds of times, parts suppliers stock the components, and owners who know what to look for can make smart decisions before a minor symptom turns into a major repair bill. Whether you're chasing a shudder on the highway, hearing a rattle on cold starts, or dealing with a check engine light that just won't quit, there's a clear path forward.
At expediaparts.com, we want to get you back on the road. This guide walks through the most common failures on the 2006 F-150, what the data shows about this model year, and what you can realistically expect to pay for a used or remanufactured transmission or engine.
What the Research Shows
The 2006
Ford F-150 uses the 4R75E 4-speed automatic transmission and, in the most common configuration, the 5.4L Triton 3V V8 engine. This year is widely considered one of the most problematic in the 2004–2008 generation, particularly for engine-related failures.
According to
Powertrain Products' overview of the Ford 5.4L Triton V8, the 3-valve version of this engine has several design-level vulnerabilities that show up consistently across the 2006–2008 model years — most notably cam phaser failure and two-piece spark plug breakage. 1A Auto's breakdown of the 11th-gen F-150 (2004–2008) confirms the same issues and ranks spark plug seizure as one of the top five problems owners encounter. The 4R75E transmission is similarly well-documented, with torque converter and overdrive issues appearing regularly across owner forums and technician reports.
If you own a 2006 F-150, you're not dealing with a fluke — you're dealing with a pattern. The upside: you can plan for it.
Common Transmission Problems
The 4R75E 4-speed automatic in the 2006 F-150 has two failure modes that show up most often:
