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expert information source. These documented issues from actual shop repair orders demonstrate how SureTrack can help you correct issues that are not easily diagnosed using OEM information alone. SureTrack is currently available free in our ProDemand product.
The cooling fan on this Lincoln LS is common because it’s hydraulically powered. Since this fan is hydraulic, oil pressure dictates the speed of the fan. When the solenoid controlling the flow of pressure fails, the fan no longer operates properly and the vehicle is prone to overheating. Don’t let the P1299 trouble code get you heated and use this Real Fix to solve the overheating fault.
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Vehicle 2001, Lincoln LS, 3.0L
Title P1299, Replaced Hydraulic Fan Solenoid
Complaint The customer states the check engine light is on.
Cause Connected a scan tool and found code P1299 – Cylinder Head Over Temperature Protect. Inspected the engine coolant level and condition and found no faults. Started the vehicle, allowed the engine to idle and noticed the vehicle began to overheat after 20 minutes. Also, observed the hydraulic fan did not engage. Used a multi-meter to check for power and ground at the hydraulic fan solenoid and found both were present. Inspected the hydraulic fan solenoid wiring harness and found no faults. This indicated the hydraulic fan solenoid was faulty.
Correction Replaced the hydraulic fan solenoid, cleared codes, performed a road test and verified the vehicle operated properly. The check engine light did not illuminate and no fault codes returned.