Back to 2006 Ford Explorer
Help
2006 FORD EXPLORER
4.6L V8•4WD•AUTOMATIC•gas
4 active safety recalls on this vehicle — view recalls
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs0Labor995Torque6816Fluid18DTC1746Battery2Maintenance0Recalls4
P1728high severityPowertrain

Transmission Slip Error

on 2006 Ford Explorer 4.6L V8 · 4WD

What this code means

The PCM/TCM has detected excessive transmission slip. The actual gear ratio does not match the expected ratio, indicating the transmission is slipping during operation.

Symptoms

  • Check Engine Light
  • Transmission slipping during acceleration
  • RPM flare between shifts
  • Harsh shifting
  • Reduced fuel economy
  • Transmission overheating

Common causes

  • Low transmission fluid
  • Worn clutch packs
  • Faulty shift solenoids
  • Valve body issue
  • Torque converter failure
  • Contaminated transmission fluid

Diagnostic steps

  1. Check transmission fluid level and condition (color, smell)
  2. Monitor transmission slip with scan tool
  3. Check line pressure
  4. Inspect shift solenoid operation
  5. Perform transmission fluid and filter service

Repair notes

Check fluid level first. Perform fluid and filter service. If slip persists, internal transmission repair or rebuild likely needed.

🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
As an Amazon Associate, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Other Powertrain codes on this vehicle

🔌 Need this data in your app? It's all in the free API →
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
Stuck on this repair? Take it to The Diag Desk — ask a master tech about this exact car → real human answer within 24h, never AI
Share:XRedditFBWhatsAppThreadsEmail
⚠ STILL BEHIND THE PAYWALL
The 2006 Ford Explorer repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the Ford Explorer — $99 →
Building an app?
Free API access to all this data — 10 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →