Engine Coolant Over Temperature (Head Bolt Stretch)
The MAXXFORCE-P0217-11 (MaxxForce) diesel fault code means: Engine Coolant Over Temperature (Head Bolt Stretch). This is a critical severity code.
- Keep driving?
- No -- stop driving
- DIY difficulty
- expert
- Estimated cost
- $4,500-$18,000
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Common Symptoms
- Overheating
- Coolant loss
- White smoke
- Bubbles in coolant tank
Probable Causes (Ranked by Likelihood)
- Stretched head bolts allowing combustion into coolant Very Likely
- Cracked EGR cooler leaking into combustion Likely
- Failed head gasket Likely
Step-by-Step Diagnostic Procedure
Perform block-tester (combustion leak) test on coolant.
MaxxForce 11 head bolt job is typically $8k-$15k including machining.
Many owners deleted this engine or swapped to ISX / Cummins.
Frequently Asked Questions
What is P0217 on a MaxxForce 11 (10.5L)?
P0217 on a MaxxForce 11 (10.5L) (2008-2014) indicates: Engine Coolant Over Temperature (Head Bolt Stretch). This is a known fault code on the MaxxForce engine family and typically points to the causes listed above.
Can I drive with P0217 on my MaxxForce?
No. Stop driving and arrange for towing. Continued operation risks catastrophic damage or stranding.
How much does it cost to fix MaxxForce P0217?
Repair cost is typically $4,500-$18,000 depending on the underlying cause and shop rate. Many MaxxForce faults (especially EGR cooler, head bolt, and VGT repairs) are major expenses that drove fleet owners to repower with Cummins or retire these trucks early.