Engine Oil Temperature Sensor High
The POWERSTROKE-P0198 (Power Stroke) diesel fault code means: Engine Oil Temperature Sensor High. This is a moderate severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- beginner
- Estimated cost
- $80-$250
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Common Symptoms
- CEL
Probable Causes (Ranked by Likelihood)
- Failed EOT sensor Likely
Frequently Asked Questions
What is P0198 on a 6.0L Power Stroke?
P0198 on a 6.0L Power Stroke (2003-2007) indicates: Engine Oil Temperature Sensor High. This is a known diagnostic trouble code on this engine family and typically points to the causes listed above.
Can I drive with P0198 on my Power Stroke?
Yes, you can generally drive with this code, but diagnose it soon to prevent further damage.
How much does it cost to fix P0198?
Repair cost is typically $80-$250 depending on the underlying cause and whether you DIY or use a shop. Diagnostic time alone runs $100-$180 at most independent diesel shops.
Mechanics Guide Step-by-step diagnosis
Step-by-Step Diagnostic Procedure
Replace EOT.
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines P0198 as a generic OBD-II code)
P0198 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown:
Commonly Affected Vehicles
- 2003-2007 Ford F-250 Super Duty 6.0L Power Stroke
- 2003-2007 Ford F-350 Super Duty 6.0L Power Stroke
- 2003-2007 Ford F-450/F-550 Super Duty 6.0L Power Stroke
- 2003-2010 Ford E-350/E-450 6.0L Power Stroke
- 2003-2005 Ford Excursion 6.0L Power Stroke
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